VT-6802HDTR

GENERAL: The resistance barrier shall be Model VT-6802HDTR, as manufactured by B&B Roadway, (888) 560-2060.
The barrier shall be crash tested in accordance with the Manual for Assessing Safety Hardware (MASH) Test Level 2 (TL-2) and shall be capable of stopping a 5,000 lb vehicle traveling at 44 mph impacting the arm at 90 degrees.

APPLICATIONS: The barrier shall be designed for use as a penetration resistance barrier. The barrier shall be explicitly designed for traffic control on movable bridges, as required by AASHTO’s current standard specifications for movable highway bridges, and shall be suitable for similar applications such as railway crossings, Toll lanes, reversible lanes or any application involving traffic lane management.

HOUSING: The operating mechanism and main control components shall be contained in a weatherproof housing. The housing shall be constructed of .375” (9.5 mm) carbon steel, hot dip galvanized after fabrication. Exterior surfaces shall be painted aluminum. All external fasteners shall be corrosion resistant. Arm shaft openings shall incorporate O-ring seals.

OPERATING MECHANISM: The barrier arm shall pivot in the vertical plane via a mechanical 4-bar linkage. The linkage shall utilize cranks keyed to the main arm shaft and transmission shaft and an adjustable connecting rod between a pair of self-aligning spherical rod ends. The connecting rod shall be 1.5” (38 mm) diameter AISI 4140 alloy steel. An auxiliary crank shall be used, paired with the transmission crank, to reduce the load on the transmission and to better balance and stabilize the load on the housing and mounting structure. The auxiliary crank shall be mounted in a grease lubricated ball bearing. The velocity of the arm shall follow a sinusoidal pattern to provide smooth operation. The arm shall begin and end its full motion path with zero velocity and accelerate smoothly to maximum velocity at mid-travel.

TRANSMISSION: The mechanism linkage shall be driven by a fully enclosed, double-enveloping worm gear, double reduction speed reducer. The transmission shall have a rated capacity of not less than 23,000 inch-pounds, continuous duty, with an occasional momentary peak load rating of not less than 69,000 inch-pounds. The output shaft shall be 2.5” (63 mm) in diameter. Gear ratio used shall produce an operation time of approximately 16 seconds. [Option: Contact factory for other speed options.]

TORQUE LIMITER: A heavy duty torque limiter shall be provided to limit torque transmitted to the operating mechanism in the event of excessive winds or a physical obstruction to the arm that could damage the mechanism during operation. The torque limiter shall be capable of being set anywhere within a range of 10,000 to 75,000 in-lbs torque. Each torque limiter shall be factory set for the load recommended by the manufacturer, based on installation requirements. Each torque limiter shall be adjusted and tested at the factory, under over-load condition, for a minimum of 5 minutes to verify the setting. The gate limit switch assembly shall be driven from the output side of the torque limiter so that slippage of the torque limiter will have no effect upon the limit switch settings.

MOTOR: The motor voltage and phase shall be as specified by the customer. The motor horsepower shall be as recommended by the barrier manufacturer to suit the installation. The motor shall be a C-face design and shall be mounted directly to the transmission. The motor shall be instantly reversing and overload protected.

LIMIT SWITCH: The barrier limit switch assembly shall be a self-contained unit. The standard assembly shall provide eight (8) independent SPDT control switches. [Option: A 10 circuit or a 12 circuit limit switch assembly shall be provided when specified.] Switches shall be rated for 15 amps, 480 VAC. Switches shall be controlled by individually adjustable cams. The limit switch assembly design shall permit adjustment of all cams with the barrier in any position. The limit switch assembly shall have a removable cover to help prevent accidental contact with switch terminals. Shaft, cams, bushings
and housing pieces shall be of non-ferrous corrosion resistant materials.

BRAKING MECHANISM: The motor shall be equipped with a solenoid-release, automatic brake. The brake shall have a manual release lever to permit manual operation of the barrier during setup or emergencies.

ARM SHAFT: The main arm shaft shall be 3.5” (89 mm) diameter AISI 4140 high strength alloy steel with a minimum tensile strength of 140,000 psi. The shaft shall be mounted in heavy duty flange mount ball bearings assemblies.

DOORS: Front and rear access doors shall be mounted on strap hinges. Hinges shall be of the slip-off type and shall have stainless steel pins. A stop shall be mounted inside the door to secure the door from being raised off the hinges in the closed position. Door latches, two per door, shall use a vise action to compress a neoprene bulb-type gasket to seal the door openings. [Option: Door latches shall be stainless steel and shall be tamper-resistant.] [Option: A stainless steel strap shall extend across each door and fit over a heavy hasp to permit use of a padlock. Strap and hasp shall be designed to fit both standard style heavy-duty padlocks and high security shackleless (“hockey puck” style) padlocks. Padlocks shall be provided by others, keyed alike.]

ARM MOUNTNG TUBES: A pair of carbon steel rectangular tubes, hot dip galvanized after fabrication, painted aluminum, shall be rigidly affixed to the ends of the main arm shaft. The tubes shall be offset to locate the arm centerline at the height specified above the housing base. The tubes and a steel cross-member shall provide a sturdy mount for the arm and counterweights. The tubes shall have provision for easily adjusting the counterweight offset so the arm can be properly balanced in all positions.

COUNTERWEIGHTS: Lead counterweights shall be mounted at the rear of the side arm tubes to balance the arm. Counterweights shall be sectional and shall be balanced at the factory. The counterweights shall be coated with Amercoat 235 epoxy based paint.

ARM: The barrier arm design shall be a trussed tri-rail type fabricated from 3” OD aluminum tubing. Arm length shall be measured from the centerline of the barrier housing to the tip of the arm (maximum 60’). Stainless steel truss cables and a heavy duty spring type bumper rod shall be furnished with each arm to provide a stable and accurate landing position of the arm. Front and rear arm surfaces shall be covered with pre-striped alternating red and white high intensity reflective sheeting. Striping shall be 16” (406 mm) wide and vertical according to MUTCD. Remaining exposed surfaces shall be painted white.

ENERGY ABSORPTION CABLES: The barrier shall utilize 6×19 classification, 300 series stainless steel, annealed energy absorption cables to assist in diffusing the kinetic energy of an impacting vehicle. Cables shall be annealed in a coil not less than 42” diameter. Consult factory for barrier resistance capacity which shall necessarily depend on project specific conditions. The tri-rail arm shall have (3) three ½” (13 mm) nominal diameter cables minimum, one inside each tube facing traffic and one between the tubes. The energy absorption cables shall be joined together by cable brackets in order to provide a netlike energy absorption system.

SIDE ARM LOCK: At the housing, heavy duty side arm locks shall be mechanically linked to the operating mechanism to automatically engage and lock the side arm tubes into a rigid configuration when the arm is lowered, to assist in transferring the load into the housing in the event of an impact. This will minimize the chance of damage to the internal operating mechanism.

CABLE ANCHORAGE SYSTEM: The energy absorption cables shall be anchored at both ends of the span in the closed to traffic position. A “nearside” receiver shall be used at the housing or base end of the arm to capture the passive end locks and absorb loads during an impact. Details of the receiver shall be coordinated with the manufacturer to suit installation requirements.

ARM END LOCK: The energy absorption cables shall be anchored at the tip end of the arm in the closed to traffic position. A passive end lock mounted on the arm tip shall engage a rigidly mounted receiver on the “farside” of the roadway from the operator housing. End locks shall not require powered actuation for proper engagement.

MOUNTING: The barrier housing and receivers shall be fixed to a suitable foundation, as specified by the project engineer, using (8) eight 1” (25 mm) diameter anchor bolts for the barrier housing and (7) seven 1” (25 mm) diameter anchor bolts for the receivers. The barrier housing base shall provide 1.25” (32 mm) diameter mounting holes and the receiver bases shall have 1.25” (32 mm) diameter slotted mounting holes.

HANDCRANK: Both a handcrank and a drill crank shall be provided with each barrier to facilitate manual operation.

SAFETY SWITCHES, TERMINAL BLOCKS AND WIRING: A manual disconnect switch shall be provided, pre-wired at the factory to break the main motor leads, to protect personnel during service. A handcrank safety switch shall be provided to prevent automatic actuation of the barrier during manual operation. Additionally, safety switches shall be installed and set at the factory to break the control circuit when either access door is opened. Door safety switches shall have a pull-to-override feature for test operation and shall automatically reset when doors are closed. Control components and terminal blocks shall be mounted inside an electrical enclosure, which shall be mounted inside the operator housing, with roadway side access, except where customer requirements prevent this arrangement. Pressure-type, modular terminal blocks shall be fully labeled and clearly coded to wiring diagrams. All control wiring shall be clearly coded to wiring diagrams and shall terminate at the terminal block. Connections to screw-type terminals shall have lugs. Conductors shall be XHHW #14 AWG stranded, minimum.

OPTION: ARM ENDLOCK ENGAGEMENT INDICATION LIMIT SWITCH: [Option: The arm end lock shall be equipped with an extended range magnetic proximity switch and target to indicate correct engagement of the end lock. The switch shall be mounted on the arm end lock and send a confirmation signal only when the end lock is properly engaged. The mechanism shall be field adjustable and preset at the factory.]

ACCESSORIES AND MODIFICATIONS: All common accessories and modifications shall be available. Custom modifications and accessories shall be available through coordination with manufacturer.

WARRANTY: A warranty shall cover the barrier and related equipment against defective material and components for 1 year from date of shipment from manufacturer. Manufacturer shall furnish replacement parts for a minimum of 10 years. Replacement parts for most components shall normally be available in 1 working day. Lamps, fuses and other components designed for a life less than 1 year shall be covered for the rated life of the component or the warranty period of the component manufacturer.

PARTIAL LIST OF ADDITIONAL OPTIONS:
Stainless Housing Arm Finishes, Striping Materials and Colors
Anchor Bolts (provided by manufacturer)
Alternate Arm Designs
Mounting Template Arm Lights
Alternate Door Latch Styles
Flasher
Door Strap with Integral Heavy Duty Padlock Hasp
Reflective Button Delineator
Stainless, Tamper-Resistant Door Latches
Gong or Vibrating Bell

VR-6V Vertical Counterweight Resistance Barrier

GENERAL: The resistance barrier shall be Model VR-6V, as manufactured by B&B Roadway, (888) 560-2060.

APPLICATIONS: The barrier shall be designed for use as a penetration resistance barrier and shall be suitable for use as a warning barrier for wide spans. The barrier shall be explicitly designed for traffic control on movable bridges, as required by AASHTO’s current Standard Specifications for Movable Highway Bridges, and shall be suitable for similar applications as well.

HOUSING: The operating mechanism and main control components shall be contained in a weatherproof housing. The housing shall be constructed of .375” (9.5mm) carbon steel, hot dip galvanized after fabrication. Exterior surfaces shall be painted aluminum. All external fasteners shall be corrosion resistant. Arm shaft openings shall incorporate O-ring seals.

OPERATING MECHANISM: The barrier arm shall pivot in the vertical plane via a mechanical 4-bar linkage. The linkage shall utilize cranks keyed to the main arm shaft and transmission shaft and an adjustable connecting rod between a pair of self-aligning spherical rod ends. The connecting rod shall be 1.25” (32mm) diameter AISI 4140 alloy steel. An auxiliary crank shall be used, paired with the transmission crank, to reduce the load on the transmission and to better balance and stabilize the load on the housing and mounting structure. The auxiliary crank shall be mounted in a permanently lubricated bronze bearing. The velocity of the arm shall follow a sinusoidal pattern to provide smooth operation. The arm shall begin and end its full motion path with zero velocity and accelerate smoothly to maximum velocity at mid-travel.

TRANSMISSION: The mechanism linkage shall be driven by a fully enclosed, heavy duty worm gear, double reduction speed reducer. The transmission shall have an occasional momentary peak load rating of not less than 37,000 inch-pounds. The output shaft shall be 2” (51mm) diameter. Gear ratio used shall produce an operation time of approximately 16 seconds. [Option: Contact factory for other speed options.]

TORQUE LIMITER: A heavy duty torque limiter shall be provided to limit torque transmitted to the operating mechanism in the event of excessive winds or a physical obstruction to the arm that could damage the mechanism during operation. The torque limiter shall be capable of being set anywhere within a range of 10,000 to 75,000 in-lbs torque. Each torque limiter shall be factory set for the load recommended by the manufacturer, based on installation requirements. Each torque limiter shall be adjusted and tested at the factory, under over-load condition, for a minimum of 5 minutes to verify the setting. The gate limit switch assembly shall be driven from the output side of the torque limiter so that slippage of the torque limiter will have no effect upon the limit settings.

MOTOR: The motor voltage and phase shall be as specified by the customer. The motor horsepower shall be as recommended by the barrier manufacturer to suit the installation, typically 2 hp. The motor shall be a C-face design and shall be mounted directly to the transmission. The motor shall be instantly reversing and overload protected.

LIMIT SWITCH: The barrier limit switch assembly shall be a self-contained unit. The standard assembly shall provide 8 independent SPDT control switches. [Option: A 10 circuit or a 12 circuit limit switch assembly shall be provided when specified.] Switches shall be rated for 15 amps, 480 VAC. Switches shall be controlled by individually adjustable cams. The limit switch assembly design shall permit adjustment of all cams with the barrier in any position. The limit switch assembly shall have a removable cover to help prevent accidental contact with switch terminals. Shaft, cams, bushings and housing pieces shall be of non-ferrous corrosion resistant materials.

BRAKING MECHANISM: The motor shall be equipped with a solenoid-release, automatic brake. The brake shall have a manual release lever to permit manual operation of the barrier during setup or emergencies.

ARM SHAFT: The main arm shaft shall be 2.5” (63mm) diameter AISI 4140 high strength alloy steel with a minimum tensile strength of 140,000 psi. The shaft shall be mounted in heavy duty sealed ball bearings with lubrication fittings.

DOORS: Front and rear access doors shall be mounted on strap hinges. Hinges shall be of the slip-off type and shall have stainless steel pins. A stop shall be mounted inside the door to secure the door from being raised off the hinges in the closed position. Door latches, two per door, shall use a vise action to compress a neoprene bulb-type gasket to seal the door openings. [Option: Door latches shall be of stainless steel and shall be tamper-resistant.] [Option: A stainless steel strap shall extend across each door and fit over a heavy hasp to permit use of a padlock. Strap and hasp shall be designed to fit both standard style heavy-duty padlocks and high security shackleless (“hockey puck” style) padlocks. Padlocks shall be provided by others, keyed alike.]

ARM MOUNTING TUBES: A pair of carbon steel rectangular tubes, hot dip galvanized after fabrication, painted aluminum, shall be rigidly affixed to the ends of the main arm shaft. The tubes shall locate the arm centerline at 24” above the housing base. The tubes and a steel cross-member shall provide a sturdy mount for the arm.

COUNTERWEIGHTS: Hot dip galvanized steel counterweight plates shall be mounted onto carriers inside the vertical tubes to balance the arm. Counterweights shall be sectional and shall be balanced at the factory. The opening in the vertical tubes shall be closed with a removable cover to prevent ingress of water and debris and to provide access for service.

ARM: The barrier arm design shall be double rail aluminum tube (maximum 50’). [Option: Arm shall be tapered aluminum pole, or trussed tri-rail aluminum tube (consult factory for specific design and maximum arm length).] Arm length shall be measured from the centerline of the housing. Stainless steel truss cables and a roadway type bumper rod shall be furnished with longer arms at the discretion of the manufacturer. Front and rear arm surfaces shall be covered with pre-striped alternating red and white high intensity reflective sheeting. Striping shall be 16” (406mm) wide and vertical according to MUTCD. Remaining exposed surfaces shall be painted white.

ENERGY ABSORPTION CABLES: The barrier shall utilize 6×19 classification, 300-series stainless steel, annealed energy absorption cables to assist in diffusing the kinetic energy of an impacting vehicle. Cables shall be annealed in a coil not less than 42” diameter. Consult factory for barrier resistance capacity which shall necessarily depend on project specific conditions.

• Double rail aluminum tube arms shall use three .50” (12mm) cables, one inside each tube, and one along the center of the arm.
• Tapered pole arms shall use three .50” (12mm) cables, one inside the pole and one above and one below the pole.
• Tri-rail arms shall use three .50” (12mm) cables, one inside each tube facing traffic and one between these tubes.

ARM END LOCK: The energy absorption cables shall be anchored at the tip end of the arm in the closed to traffic position. A passive end lock mounted on the arm tip shall engage a rigidly mounted and anchored socket on or in a wall or post for independent barriers. For paired barriers, on-coming barrier shall be fitted with a bar and anchor nut while off-going barrier shall be fitted with a yoke. On-coming barriers shall be sequenced to close first and open last. The yoke on the off-going traffic barrier shall fit over the anchor nut in the closed to traffic position. The end lock system shall be designed so that the yoke will engage the anchor nut in a collision to connect the two barriers into a continuous unit. End locks shall not require powered actuation for proper engagement.

MOUNTING: The barrier shall be fixed to a suitable foundation, as specified by the project engineer, using eight 1” (25mm) diameter anchor bolts. The barrier housing base shall provide 1.25” (32mm) mounting holes.

HANDCRANK: Both a handcrank and a drill crank shall be provided with each barrier to facilitate manual operation.

SAFETY SWITCHES, TERMINAL BLOCKS AND WIRING: A manual disconnect switch shall be provided, pre-wired at the factory to break the main motor leads, to protect personnel during service. A handcrank safety switch shall be provided to prevent automatic actuation of the barrier during manual operation. Additionally, safety switches shall be installed and set at the factory to break the control circuit when either access door is opened. Door safety switches shall have a pull-to-override feature for test operation and shall automatically reset when doors are closed. Control components and terminal blocks shall be mounted inside an electrical enclosure, which shall be mounted inside the operator housing, with roadway side access, except where customer requirements prevent this arrangement. Pressure-type, modular terminal blocks shall be fully labeled and clearly coded to wiring diagrams. All control wiring shall be clearly coded to wiring diagrams and shall terminate at the terminal block. Connections to screw-type terminals shall have lugs. Conductors shall be XHHW #14 AWG stranded, minimum.

OPTION: ARM END LOCK ENGAGEMENT INDICATION LIMIT SWITCH: [Option (for barriers equipped with arm end locks): The arm end lock shall be equipped with an extended range proximity switch to indicate correct engagement of the end lock. The mechanism shall be mounted on the arm end lock and send a confirmation signal only when the end lock is properly engaged. The mechanism shall be fully adjustable and preset at the factory.]

ACCESSORIES AND MODIFICATIONS: All common accessories and modifications shall be available. Custom modifications and accessories shall be available through coordination with manufacturer.

WARRANTY: A warranty shall cover the barrier and related equipment against defective material and components for 1 year from date of shipment from manufacturer. Manufacturer shall furnish replacement parts for a minimum of 10 years. Replacement parts for most components shall normally be available in 1 working day. Lamps, fuses and other components designed for a life less than 1 year shall be covered for the rated life of the component or the warranty period of the component manufacturer.

PARTIAL LIST OF ADDITIONAL OPTIONS (contact factory for detailed specifications):
Stainless Housing Arm Finishes
Striping Materials and Colors
Anchor Bolts (provided by manufacturer)
Mounting Template Arm Lights
Alternate Arm Designs
Alternate Door Latch Styles
Flasher
Door Strap with Integral Heavy Duty Padlock Hasp
Reflective Button Delineator
Stainless, Tamper-Resistant Door Latches
Gong or Vibrating Bell

HR-8 Horizontal Resistance Barrier

GENERAL: The resistance barrier shall be Model HR-8, as manufactured by B&B Roadway, (888) 560-2060.

APPLICATIONS: The barrier shall be designed for use as a penetration resistance barrier. The barrier shall be explicitly designed for traffic control on movable bridges, HOV and reversible lanes and similar applications. A primary feature of the HR-8 shall be a shape fabricated to match standard fixed “Jersey” barriers or a shape custom-fabricated to match the fixed roadside barrier being used.

BARRIER BEAM: The barrier beam shall be fabricated from 3/8″ (9.5mm) structural steel, hot dip galvanized after fabrication. Beam cross section shall match the “Jersey” barrier shape. Top of beam shall be 32″ (813mm) above the roadway with a 3″ (76mm) clearance under the beam to accommodate operation over crested or uneven roadway surfaces. Overall width shall be 23″ (584mm). [OPTION: Beam cross section shall be custom modified and manufactured to match the shape of the fixed roadside barrier, as specified by the project engineer.]

The upper face of the traffic side of the beam shall be covered with alternating stripes of red and white engineering grade reflective sheeting. Stripes shall slope at 45 degrees down and away from the pivot.

Nominal length of the beam shall be measured from the center of the pivot to the far end of the beam. Manufacturer shall be consulted for applications requiring beams exceeding 60 feet (18.2m).

OPERATING MECHANISM: Concealed within the barrier beam, near the far end, shall be a tractor unit which shall drive the barrier. The tractor unit shall consist of wheels, wheel drive mechanism, motor, brake, and a gear reducer coupled directly to the motor. Design shall permit manual operation during emergency conditions and for convenience during installation.

Motor horsepower shall be determined by the manufacturer to suit the installation, but shall be not less than 1.5 hp.

Wheels shall have a minimum capacity of 120% of the load at the wheels. Wheel tread shall be of urethane elastomer or similar material to provide traction. Wheel shaft shall be AISI 4150 with a minimum tensile strength of 140,000 psi. The shaft shall be mounted in heavy duty relubricable ball bearings.

MOUNTING: The barrier shall be fixed at the pivot to a suitable foundation, as specified by the project engineer. Anchor bolt size and pattern shall be determined based on installation details and requirements. Mounting base plate shall be 1″ thick, recessed into the pavement.

ENDLOCKS: [OPTION: For additional resistance capacity when required, the barrier shall be equipped with actuator-driven endlocks at the far end of the barrier. The endlocks shall engage a suitable anchorage post or wall.]

SERVICE ACCESS: Access panels or doors shall be located to permit servicing of all equipment. Access openings shall be designed to provide a weather resistant enclosure for equipment. All fasteners shall be corrosion resistant.

PIVOT: The pivot shaft shall turn on self-lubricating bronze radial and thrust bearings.

LIMIT SWITCH: The barrier limit switch assembly shall be a self-contained unit. The assembly shall provide 8 independent SPDT control switches. Switches shall be rated for 15 amps at 460 VAC. Switches shall be controlled by individually adjustable cams. The limit switch assembly design shall permit adjustment of all cams with the barrier in any position. The limit switch assembly shall have a removable cover to help prevent accidental contact with switch terminals. Shaft, cams, bushings and housing pieces shall be of non-ferrous corrosion resistant materials.

SAFETY SWITCHES, TERMINAL BLOCKS AND WIRING: A manual disconnect switch shall be provided, pre-wired at the factory to break the main motor leads, to protect personnel during service. A handcrank safety switch shall be provided to prevent powered actuation of the barrier during manual operation. Control components and terminal blocks shall be mounted inside an electrical enclosure. Pressure-type, modular terminal blocks shall be fully labeled and clearly coded to wiring diagrams. All control wiring shall be cleared coded to wiring diagrams and shall terminate at the terminal block. Connections to screw-type terminals shall have lugs. Conductors shall be #16 AWG stranded, minimum. Wiring shall be run in conduit where practical.

WARNING LIGHTS: The barrier shall be equipped with suitable warning lights spaced along the length of the barrier, typically 5′ to 9′ (2m to 3m) apart. A solid state flasher shall flash the lights alternately, except the light at the far end of the barrier, which shall be steady burn. Warning lights shall be lit during barrier operation (approximately 5 degrees from full open traffic position) and while the barrier is in the closed to traffic position. Light lenses shall be red fresnel plastic. Lights shall use 120V, rough service type lamps.

ENERGY ABSORPTION CAPACITY: Typical barrier configuration shall be capable of absorbing the energy of a 15,000 pound vehicle coasting at 40 mph (or 10,000 pound vehicle at 50 mph). Actual capacity shall necessarily vary based on individual barrier configuration.

ACCESSORIES AND MODIFICATIONS: All common accessories and modifications shall be available. Custom modifications and accessories shall be available through coordination with manufacturer.

WARRANTY: A 1 year warranty shall cover the barrier and related equipment against defective material and components. Manufacturer shall furnish replacement parts for a minimum of 10 years. Replacement parts for standard components shall normally be available within 1 working day. Lamps, fuses and other components designed for a life less than 1 year shall be covered for the rated life of the component or the warranty period of the component manufacturer.

PARTIAL LIST OF AVAILABLE OPTIONS:
Beam Finishes, Striping Materials and Colors
Barrier Shape
Anchor Bolts (provided by manufacturer)
Mounting Template
Sidewalk Extension
Pedestrian Rail or Fence
Heater and Thermostat

HR-7 Horizontal Resistance Barrier

GENERAL: The resistance barrier shall be Model HR-7, as manufactured by B&B Roadway, (888) 560-2060.

APPLICATIONS: The barrier shall be designed for use as a penetration resistance barrier. The barrier shall be explicitly designed for traffic control on movable bridges, HOV and reversible lanes and similar applications.

BARRIER BEAM: The barrier beam shall be fabricated from 12″ (304mm) square, .375″ (9.5mm) thick structural steel tube, hot dip galvanized after fabrication. Height to the top of beam shall be as specified. Traffic side of beam shall have 6” (152mm) diameter wing type heavy dock bumpers sloped at 45 degrees down and away from the pintle and covered with engineering grade reflective sheeting. Beam face between bumpers shall also be covered with reflective sheeting to produce an alternating pattern of red and white stripes.

Nominal length of the beam shall be measured from the center of the pivot to the far end of the beam. Manufacturer shall be consulted for applications requiring beams exceeding 60 feet (18.2m).

OPERATING MECHANISM: Enclosed within an integral housing, near the far end, shall be a tractor unit which shall drive the barrier. The tractor unit shall consist of wheels, wheel drive mechanism, motor, brake, and gear reducer coupled directly to the motor. Design shall permit manual operation during emergency conditions and for convenience during installation.

Motor horsepower shall be determined by the manufacturer to suit the installation, but shall be not less than 1.5 hp.

Wheels shall have a minimum capacity of 120% of the load at the wheels. Wheel tread shall be of urethane elastomer or similar material to provide traction. Wheel shaft shall be AISI 4150 with a minimum tensile strength of 140,000 psi. The shaft shall be mounted in heavy duty relubricable ball bearings.

MOUNTING: The barrier shall be fixed at the pivot to a suitable foundation, as specified by the project engineer. Anchor bolt size and pattern shall be determined based on installation details and requirements.

ENDLOCKS: [OPTION: For additional resistance capacity when required, the barrier shall be equipped with actuator-driven endlocks at the far end of the barrier. The endlocks shall engage a suitable anchorage post or wall.]

SERVICE ACCESS: Access panels or doors shall be located to permit servicing of all equipment. Access openings shall be designed to provide a weather resistant enclosure for equipment. All fasteners shall be corrosion resistant.

PIVOT: The pivot shaft shall turn on self-lubricating bronze radial and thrust bearings.

LIMIT SWITCH: The barrier limit switch assembly shall be a self-contained unit. The assembly shall provide 8 independent SPDT control switches. Switches shall be rated for 15 amps at 460 VAC. Switches shall be controlled by individually adjustable cams. The limit switch assembly design shall permit adjustment of all cams with the barrier in any position. The limit switch assembly shall have a removable cover to help prevent accidental contact with switch terminals. Shaft, cams, bushings and housing pieces shall be of non-ferrous corrosion resistant materials.

SAFETY SWITCHES, TERMINAL BLOCKS AND WIRING: A manual disconnect switch shall be provided, pre-wired at the factory to break the main motor leads, to protect personnel during service. A handcrank safety switch shall be provided to prevent powered actuation of the barrier during manual operation. Control components and terminal blocks shall be mounted inside an electrical enclosure. Pressure-type, modular terminal blocks shall be fully labeled and clearly coded to wiring diagrams. All control wiring shall be cleared coded to wiring diagrams and shall terminate at the terminal block. Connections to screw-type terminals shall have lugs. Conductors shall be type XHHW #14 AWG stranded, minimum. Wiring shall be run in conduit where practical.

WARNING LIGHTS: The barrier shall be equipped with suitable warning lights spaced along the length of the barrier, typically 5′ to 9′ (2m to 3m) apart. A solid state flasher shall flash the lights alternately, except the light at the far end of the barrier, which shall be steady burn. Warning lights shall operate during operation (approximately 5 degrees from full open traffic position) and while the barrier is in the closed to traffic position. Light lenses shall be red fresnel plastic. Lights shall use 120V, rough service type lamps.

ENERGY ABSORPTION CAPACITY: Typical barrier configuration shall be capable of absorbing the energy of a 5,000 pound vehicle coasting at 50 mph. Actual capacity shall necessarily vary based on individual barrier configuration.

ACCESSORIES AND MODIFICATIONS: All common accessories and modifications shall be available. Custom modifications and accessories shall be available through coordination with manufacturer.

WARRANTY: A 1 year warranty shall cover the barrier and related equipment against defective material and components. Manufacturer shall furnish replacement parts for a minimum of 10 years. Replacement parts for standard components shall normally be available within 1 working day. Lamps, fuses and other components designed for a life less than 1 year shall be covered for the rated life of the component or the warranty period of the component manufacturer.

PARTIAL LIST OF AVAILABLE OPTIONS:
Beam Finishes, Striping Materials and Colors
Anchor Bolts (provided by manufacturer)
Mounting Template
Sidewalk Extension
Pedestrian Rail or Fence
Heater and Thermostat

VR-7 Vertical Resistance Barrier

GENERAL: The resistance barrier shall be Model VR-7, as manufactured by B&B Roadway, (888) 560-2060.

APPLICATIONS: The barrier shall be designed for use as a penetration resistance barrier and shall be suitable for use as a warning barrier for wide spans. The barrier shall be explicitly designed for traffic control on movable bridges, as required by AASHTO’s current Standard Specifications for Movable Highway Bridges, and shall be suitable for similar applications as well.

HOUSING: The operating mechanism and main control components shall be contained in a weatherproof housing. The housing shall be constructed of .375” (9.5mm) carbon steel, hot dip galvanized after fabrication. Exterior surfaces shall be painted aluminum. All external fasteners shall be corrosion resistant. Arm shaft openings shall incorporate O-ring seals.

OPERATING MECHANISM: The barrier arm shall pivot in the vertical plane via a mechanical 4-bar linkage. The linkage shall utilize cranks keyed to the main arm shaft and transmission shaft and an adjustable connecting rod between a pair of self-aligning spherical rod ends. The connecting rod shall be 1.25” (32mm) diameter AISI 4140 alloy steel. An auxiliary crank shall be used, paired with the transmission crank, to reduce the load on the transmission and to better balance and stabilize the load on the housing and mounting structure. The auxiliary crank shall be mounted in a permanently lubricated bronze bearing. The velocity of the arm shall follow a sinusoidal pattern to provide smooth operation. The arm shall begin and end its full motion path with zero velocity and accelerate smoothly to maximum velocity at mid-travel.

TRANSMISSION: The mechanism linkage shall be driven by a fully enclosed, double-enveloping worm gear, double reduction speed reducer. The transmission shall have a rated capacity of not less than 23,000 inch-pounds, continuous duty, with an occasional momentary peak load rating of not less than 69,000 inch-pounds. The output shaft shall be 2.5” (63mm) diameter. Gear ratio used shall produce an operation time of approximately 16 seconds. [Option: Contact factory for other speed options.]

TORQUE LIMITER: A heavy duty torque limiter shall be provided to limit torque transmitted to the operating mechanism in the event of excessive winds or a physical obstruction to the arm that could damage the mechanism during operation. The torque limiter shall be capable of being set anywhere within a range of 10,000 to 75,000 in-lbs torque. Each torque limiter shall be factory set for the load recommended by the manufacturer, based on installation requirements. Each torque limiter shall be adjusted and tested at the factory, under over-load condition, for a minimum of 5 minutes to verify the setting. The gate limit switch assembly shall be driven from the output side of the torque limiter so that slippage of the torque limiter will have no effect upon the limit switch settings.

MOTOR: The motor voltage and phase shall be as specified by the customer. The motor horsepower shall be as recommended by the barrier manufacturer to suit the installation, between 1 and 2 hp. The motor shall be a C-face design and shall be mounted directly to the transmission. The motor shall be instantly reversing and overload protected.

LIMIT SWITCH: The barrier limit switch assembly shall be a self-contained unit. The standard assembly shall provide 8 independent SPDT control switches. [Option: A 10 circuit or a 12 circuit limit switch assembly shall be provided when specified.] Switches shall be rated for 15 amps, 480 VAC. Switches shall be controlled by individually adjustable cams. The limit switch assembly design shall permit adjustment of all cams with the barrier in any position. The limit switch assembly shall have a removable cover to help prevent accidental contact with switch terminals. Shaft, cams, bushings and housing pieces shall be of non-ferrous corrosion resistant materials.

BRAKING MECHANISM: The motor shall be equipped with a solenoid-release, automatic brake. The brake shall have a manual release lever to permit manual operation of the barrier during setup or emergencies.

ARM SHAFT: The main arm shaft shall be 2.5” (63mm) diameter AISI 4140 high strength alloy steel with a minimum tensile strength of 140,000 psi. The shaft shall be mounted in heavy duty relubricable ball bearings. [Option: Arm shaft shall be chrome plated, when specified.]

DOORS: Front and rear access doors shall be mounted on full cross straps. Hinges shall be of the slip-off type and shall have stainless steel pins. A stop shall be mounted inside the door to secure the door from being raised off the hinges in the closed position. Door latches, two per door, shall use a vise action to compress a neoprene bulb-type gasket to seal the door openings. [Option: Door latches shall be of stainless steel and shall be tamper-resistant.] [Option: A stainless steel strap shall extend across each door and fit over a heavy hasp to permit use of a padlock. Strap and hasp shall be designed to fit both standard style heavy-duty padlocks and high security shackleless (“hockey puck” style) padlocks. Padlocks shall be provided by others, keyed alike.]

ARM MOUNTING TUBES: A pair of carbon steel rectangular tubes, hot dip galvanized, painted aluminum, shall be rigidly affixed to the ends of the main arm shaft. The tubes shall be offset to locate the arm centerline at the height specified above the housing base. The channels and a steel crossmember shall provide a sturdy mount for the arm and counterweights.

COUNTERWEIGHTS: At the rear end of the side arm tubes, hot dip galvanized counterweights shall be mounted to balance the arm. Counterweights shall be sectional and shall be balanced at the factory.

ARM: The barrier arm design shall be double rail aluminum tube (maximum 50’). [Option: Arm shall be tapered aluminum pole, or trussed tri-rail aluminum tube (consult factory for specific design and maximum arm length).] Arm length shall be measured from the centerline of the housing. Stainless steel truss cables and a roadway type bumper rod shall be furnished with longer arms at the discretion of the manufacturer. Front and rear arm surfaces shall be covered with alternating red and white high intensity reflective sheeting. Striping shall be 16” (406mm) wide and vertical according to MUTCD. Remaining exposed surfaces shall be painted white.

ENERGY ABSORPTION CABLES: The barrier shall utilize 6×19 classification, 300-series stainless steel, annealed energy absorption cables to assist in diffusing the kinetic energy of an impacting vehicle. Cables shall be annealed in a coil not less than 42” diameter. Consult factory for barrier resistance capacity which shall necessarily depend on project specific conditions.

  • Double rail aluminum tube arms shall use three .50” (12mm) cables, one inside each tube, and one along the center of the arm.
  • Tapered pole arms shall use three .50” (12mm) cables, one inside the pole and one above and one below the pole.
  • Tri-rail arms shall use three .50” (12mm) cables, one inside each tube facing traffic and one between these tubes.

SIDE ARM LOCKS: The energy absorption cables shall be anchored at both ends of the span in the closed to traffic position. At the housing, heavy duty side arm locks shall be mechanically linked to the operating mechanism to automatically engage and lock the side arm tubes into a rigid configuration when the arm is lowered, to assist in transferring the load into the housing in the event of an impact. This will minimize the chance of damage to the internal operating mechanism.

ARM END LOCK: The energy absorption cables shall be anchored at the tip end of the arm in the closed to traffic position. A passive end lock mounted on the arm tip shall engage a rigidly mounted and anchored socket on or in a wall or post for independent barriers. For paired barriers, on-coming barrier shall be fitted with a bar and anchor nut while off-going barrier shall be fitted with a yoke. On-coming barriers shall be sequenced to close first and open last. The yoke on the off-going traffic barrier shall fit over the anchor nut in the closed to traffic position. The end lock system shall be designed so that the yoke will engage the anchor nut in a collision to connect the two barriers into a continuous unit. End locks shall not require powered actuation for proper engagement.

MOUNTING: The barrier shall be fixed to a suitable foundation, as specified by the project engineer, using eight 1” (25mm) diameter anchor bolts. The barrier housing base shall provide 1.25” (32mm) mounting holes.

HANDCRANK: Both a handcrank and a drill crank shall be provided with each barrier to facilitate manual operation.

SAFETY SWITCHES, TERMINAL BLOCKS AND WIRING: A manual disconnect switch shall be provided, pre-wired at the factory to break the main motor leads, to protect personnel during service. A handcrank safety switch shall be provided to prevent automatic actuation of the barrier during manual operation. Additionally, safety switches shall be installed and set at the factory to break the control circuit when either access door is opened. Door safety switches shall have a pull-to-override feature for test operation and shall automatically reset when doors are closed. Control components and terminal blocks shall be mounted inside an electrical enclosure, which shall be mounted inside the operator housing, with roadway side access, except where customer requirements prevent this arrangement. Pressure-type, modular terminal blocks shall be fully labeled and clearly coded to wiring diagrams. All control wiring shall be clearly coded to wiring diagrams and shall terminate at the terminal block. Connections to screw-type terminals shall have lugs. Conductors shall be type XHHW #14 AWG stranded, minimum.

OPTION: CABLE ANCHORAGE SYSTEM: [OPTION IN LIEU OF SIDE ARM LOCKS: The energy absorption cables shall be anchored at both ends of the span in the closed to traffic position. A cable anchorage system shall be used at the housing or base end of the arm to absorb loads during an impact. Details of the cable anchorage system shall be coordinated with the manufacturer to suit installation requirements.]

OPTION: ARM END LATCH ENGAGEMENT INDICATION LIMIT SWITCH: [Option (for barriers equipped with arm end latches): The arm end latch shall be equipped with a proximity switch to indicate correct engagement of the end latch. The mechanism shall be mounted on the arm end latch and send a confirmation signal only when the end latch is properly engaged. The mechanism shall be fully adjustable and preset at the factory.]

ACCESSORIES AND MODIFICATIONS: All common accessories and modifications shall be available. Custom modifications and accessories shall be available through coordination with manufacturer.

WARRANTY: A warranty shall cover the barrier and related equipment against defective material and components for 1 year from date of shipment from manufacturer. Manufacturer shall furnish replacement parts for a minimum of 10 years. Replacement parts for most components shall normally be available in 1 working day. Lamps, fuses and other components designed for a life less than 1 year shall be covered for the rated life of the component or the warranty period of the component manufacturer.

PARTIAL LIST OF ADDITIONAL OPTIONS (contact factory for detailed specifications):
Stainless Housing
Arm Finishes, Striping Materials and Colors
Anchor Bolts (provided by manufacturer)
Alternate Arm Designs
Mounting Template
Arm Lights
Alternate Door Latch Styles
Flasher
Door Strap with Integral Heavy Duty Padlock Hasp
Reflective Button Delineator
Stainless, Tamper-Resistant Door Latches
Sidewalk Arm
Shear Pin Arm Base (for use as a warning gate)
Gong or Vibrating Bell

VR-6R Vertical Resistance Barrier

Reverse Counterweight Resistance Barrier Designed for Limited Installation Spaces and Narrow Sidewalks.

KEY FEATURES:

  • Reduces Footprint of Operating Unit to Absolute Minimum
  • Securely Anchors Base of Arm and Resistance Cables

The VR-6R was designed to meet the needs of tight installation spaces where a traditional design barrier would encroach on sidewalk space or even extend into the roadway.

 

VR-6 Vertical Resistance Barrier

GENERAL: The resistance barrier shall be Model VR-6, as manufactured by B&B Roadway, (888) 560-2060.

APPLICATIONS: The barrier shall be designed for use as a penetration resistance barrier and shall be suitable for use as a warning barrier for wide spans. The barrier shall be explicitly designed for traffic control on movable bridges, as required by AASHTO’s current Standard Specifications for Movable Highway Bridges, and shall be suitable for similar applications as well.

HOUSING: The operating mechanism and main control components shall be contained in a weatherproof housing. The housing shall be constructed of .375″ (9.5mm) carbon steel, hot dip galvanized after fabrication. Exterior surfaces shall be painted aluminum. All external fasteners shall be corrosion resistant. Arm shaft openings shall incorporate O-ring seals.

OPERATING MECHANISM: The barrier arm shall pivot in the vertical plane via a mechanical 4-bar linkage. The linkage shall utilize cranks keyed to the main arm shaft and transmission shaft and an adjustable connecting rod between a pair of self-aligning spherical rod ends. The connecting rod shall be 1.25” (32mm) diameter AISI 4140 alloy steel. An auxiliary crank shall be used, paired with the transmission crank, to reduce the load on the transmission and to better balance and stabilize the load on the housing and mounting structure. The auxiliary crank shall be mounted in a permanently lubricated bronze bearing. The velocity of the arm shall follow a sinusoidal pattern to provide smooth operation. The arm shall begin and end its full motion path with zero velocity and accelerate smoothly to maximum velocity at mid-travel.

TRANSMISSION: The mechanism linkage shall be driven by a fully enclosed, heavy duty worm gear, double reduction speed reducer. The transmission shall have an occasional momentary peak load rating of not less than 37,000 in-lbs. The output shaft shall be 2” (51mm) diameter. Gear ratio used shall produce an operation time of approximately 16 seconds. [Option: Contact factory for other speed options].

TORQUE LIMITER: A heavy duty torque limiter shall be provided to limit torque transmitted to the operating mechanism in the event of excessive winds or a physical obstruction to the arm that could damage the mechanism during operation. The torque limiter shall be capable of being set anywhere within a range of 10,000 to 75,000 in-lbs torque. Each torque limiter shall be factory set for the load recommended by the manufacturer, based on installation requirements. Each torque limiter shall be adjusted and tested at the factory, under over-load condition, for a minimum of 5 minutes to verify the setting. The gate limit switch assembly shall be driven from the output side of the torque limiter so that slippage of the torque limiter will have no effect upon the limit settings.

MOTOR: The motor voltage and phase shall be as specified by the customer. The motor horsepower shall be as recommended by the barrier manufacturer to suit the installation, typically 1 hp. The motor shall be a C-face design and shall be mounted directly to the transmission. The motor shall be instantly reversing and overload protected.

LIMIT SWITCH: The barrier limit switch assembly shall be a self-contained unit. The standard assembly shall provide 8 independent SPDT control switches. [Option: A 10 circuit or a 12 circuit limit switch assembly shall be provided when specified.] Switches shall be rated for 15 amps, 480 VAC. Switches shall be controlled by individually adjustable cams. The limit switch assembly design shall permit adjustment of all cams with the barrier in any position. The limit switch assembly shall have a removable cover to help prevent accidental contact with switch terminals. Shaft, cams, bushings and housing pieces shall be of non-ferrous corrosion resistant materials.

BRAKING MECHANISM: The motor shall be equipped with a solenoid-release, automatic brake. The brake shall have a manual release lever to permit manual operation of the barrier during setup or emergencies.

ARM SHAFT: The main arm shaft shall be 2.5” (63mm) diameter AISI 4140 high strength alloy steel with a minimum tensile strength of 140,000 psi. The shaft shall be mounted in heavy duty sealed ball bearings with lubrication fittings. [Option: Arm shaft shall be chrome plated, when specified.]

DOORS: Front and rear access doors shall be mounted on strap hinges. Hinges shall be of the slip-off type and shall have stainless steel pins. A stop shall be mounted inside the door to secure the door from being raised off the hinges in the closed position. Door latches, two per door, shall use a vise action to compress a neoprene bulb-type gasket to seal the door openings. [Option: Door latches shall be of stainless steel and shall be tamper-resistant.] [Option: A stainless steel strap shall extend across each door and fit over a heavy hasp to permit use of a padlock. Strap and hasp shall be designed to fit both standard style heavy-duty padlocks and high security shackleless (“hockey puck” style) padlocks. Padlocks shall be provided by others, keyed alike.]

ARM MOUNTING TUBES: A pair of carbon steel rectangular tubes, hot dip galvanized after fabrication, painted aluminum, shall be rigidly affixed to the ends of the main arm shaft. The tubes shall be offset to locate the arm centerline at the height specified above the housing base. The tubes and a steel cross-member shall provide a sturdy mount for the arm and counterweights. The tubes shall have provision for easily adjusting the counterweight offset so the arm can be properly balanced in all positions.

COUNTERWEIGHTS: Hot dip galvanized steel counterweights shall be mounted at the rear of the side arm tubes to balance the arm. Counterweights shall be sectional and shall be balanced at the factory.

ARM: The barrier arm design shall be double rail aluminum tube (maximum 50’). [Option: Arm shall be tapered aluminum pole, or trussed tri-rail aluminum tube (consult factory for specific design and maximum arm length).] Arm length shall be measured from the centerline of the housing. Stainless steel truss cables and a roadway type bumper rod shall be furnished with longer arms at the discretion of the manufacturer. Front and rear arm surfaces shall be covered with alternating red and white high intensity reflective sheeting. Stripes shall be 16” (406mm) wide and vertical according to MUTCD. Remaining exposed surfaces shall be painted white.

ENERGY ABSORPTION CABLES: The barrier shall utilize 6×19 classification, 300-series stainless steel, annealed energy absorption cables to assist in diffusing the kinetic energy of an impacting vehicle. Cables shall be annealed in a coil not less than 42” diameter. Consult factory for barrier resistance capacity which shall necessarily depend on project specific conditions.

  • Double rail aluminum tube arms shall use three .50” (12mm) cables, one inside each tube, and one along the center of the arm.
  • Tapered pole arms shall use three .50” (12mm) cables, one inside the pole and one above and one below the pole.
  • Tri-rail arms shall use three .50” (12mm) cables, one inside each tube facing traffic and one between these tubes.

SIDE ARM LOCKS: The energy absorption cables shall be anchored at both ends of the span in the closed to traffic position. At the housing, heavy duty side arm locks shall be mechanically linked to the operating mechanism to automatically engage and lock the side arm tubes into a rigid configuration when the arm is lowered, to assist in transferring the load into the housing in the event of an impact. This will minimize the chance of damage to the internal operating mechanism.

ARM END LOCK: The energy absorption cables shall be anchored at the tip end of the arm in the closed to traffic position. A passive end lock mounted on the arm tip shall engage a rigidly mounted and anchored socket on or in a wall or post for independent barriers. For paired barriers, on-coming barrier shall be fitted with a bar and anchor nut while off-going barrier shall be fitted with a yoke. On-coming barriers shall be sequenced to close first and open last. The yoke on the off-going traffic barrier shall fit over the anchor nut in the closed to traffic position. The end lock system shall be designed so that the yoke will engage the anchor nut in a collision to connect the two barriers into a continuous unit. End locks shall not require powered actuation for proper engagement.

MOUNTING: The barrier shall be fixed to a suitable foundation, as specified by the project engineer, using eight 1″ (25mm) diameter anchor bolts. The barrier housing base shall provide 1.25″ (32mm) mounting holes.

HANDCRANK: Both a hand crank and a drill crank shall be provided with each barrier to facilitate manual operation.

SAFETY SWITCHES, TERMINAL BLOCKS AND WIRING: A manual disconnect switch shall be provided, pre-wired at the factory to break the main motor leads, to protect personnel during service. A handcrank safety switch shall be provided to prevent automatic actuation of the barrier during manual operation. Additionally, safety switches shall be installed and set at the factory to break the control circuit when either access door is opened. Door safety switches shall have a pull-to-override feature for test operation and shall automatically reset when doors are closed. Control components and terminal blocks shall be mounted inside an electrical enclosure, which shall be mounted inside the operator housing, with roadway side access, except where customer requirements prevent this arrangement. Pressure-type, modular terminal blocks shall be fully labeled and clearly coded to wiring diagrams. All control wiring shall be clearly coded to wiring diagrams and shall terminate at the terminal block. Connections to screw-type terminals shall have lugs. Conductors shall be XHHW #14 AWG stranded, minimum.

OPTION: CABLE ANCHORAGE SYSTEM: [OPTION IN LIEU OF SIDE ARM LOCKS: The energy absorption cables shall be anchored at both ends of the span in the closed to traffic position. A cable anchorage system shall be used at the housing or base end of the arm to absorb loads during an impact. Details of the cable anchorage system shall be coordinated with the manufacturer to suit installation requirements.]

OPTION: ARM END Lock ENGAGEMENT INDICATION LIMIT SWITCH: [Option: The arm end lock shall be equipped with an extended range proximity switch to indicate correct engagement of the end lock. The mechanism shall be mounted on the arm end lock and send a confirmation signal only when the end lock is properly engaged. The mechanism shall be fully adjustable and preset at the factory.]

ACCESSORIES AND MODIFICATIONS: All common accessories and modifications shall be available. Custom modifications and accessories shall be available through coordination with manufacturer.

WARRANTY: A warranty shall cover the barrier and related equipment against defective material and components for 1 year from date of shipment from manufacturer. Manufacturer shall furnish replacement parts for a minimum of 10 years. Replacement parts for most components shall normally be available in 1 working day. Lamps, fuses and other components designed for a life less than 1 year shall be covered for the rated life of the component or the warranty period of the component manufacturer.

PARTIAL LIST OF ADDITIONAL OPTIONS (contact factory for detailed specifications):
Stainless Housing
Arm Finishes, Striping Materials and Colors
Anchor Bolts (provided by manufacturer)
Alternate Arm Designs
Mounting Template
Arm Lights
Alternate Door Latch Styles
Flasher
Door Strap with Integral Heavy Duty Padlock Hasp
Reflective Button Delineator
Stainless, Tamper-Resistant Door Latches
Sidewalk Arm
Shear Pin Arm Base (for use as a warning gate)
Gong or Vibrating Bell

VR-M3 Vertical Resistance Barrier

Visual Warning: The VR-M3 provides hard-to-miss visual impact to alert motorists to a road-blocked condition. Arm surfaces are painted gloss white and front and rear surfaces of the arm are covered with a strip of highly reflective diamond grade sheeting with alternating red and white stripes for superior visibility in all lighting conditions.

Intrusion Resistance: For sites where the intent is to stop errant vehicles while protecting occupants rather than to debilitate the vehicle, the VR-M3 offers an ideal choice. The VR-M3 incorporates a unique energy-absorption system through the use of concealed continuous straps running inside the arm tube and looping around anchored bollards at each side of the roadway. By selecting appropriate straps, the stopping capacity of the barrier can be tailored to suit individual installation requirements.

Ease of Operation: For remote or infrequently-operated sites or locations where electrical power is inconvenient or unavailable, the manual operation of the VR-M3 provides a solution. Counterweights balance the arm for smooth and easy operation requiring minimal force on the built-in handle. An automatic latch engages the gate to hold it firmly in both the lowered and raised position and is easily released to allow operation. An adjustment plate allows easy, accurate adjustment of the lowered position to accommodate sloped roadways. Padlock hasps are provided to lock the gate in either the lowered or raised positions when the gate will be left unattended.

Typical Applications:

  • Emergency Egress Route Access Control
  • Checkpoints
  • Controlled Entrance/Exit Gates

Specification

GENERAL: The barrier gate shall be Model VR-M3, manually operated, as manufactured by B&B Roadway, (888) 560-2060.

APPLICATIONS: The barrier shall be designed for use as a warning, traffic control and access control gate where manual operation is desired for closure of up to two lanes.

GATE STAND and MOUNTING PROVISIONS: Gate stand shall use heavy structural steel, welded in a rigid configuration. Entire stand shall be hot dip galvanized after fabrication. The base shall be mounted to a foundation specified by the project engineer with four 3/4″ diameter by 12″ long L-shaped anchor bolts or alternate anchor bolt as specified by the project engineer.

SIDE ARM CHANNELS and CROSSMEMBER: Steel, hot-dip galvanized side arm channels and cross members shall form a sturdy mounting frame to support the arm. The cross member section shall provide for mounting of the arm base.

LATCHING / LOCKING PROVISIONS: The design shall permit 90 degree vertical rotation of the arm. An adjustment plate shall allow adjustment of the raised and lowered positions to account for sloping roadways. The arm shall latch in both the open and closed positions. Provision for padlocking shall be provided in both the raised and lowered positions.

BEARINGS: Permanently lubricated, bronze spherical bearings shall be provided as standard equipment for smooth, reliable operation.

ARM: The gate arm shall be 4″ square (102mm), 6005-T6 aluminum extruded tubing, fitted with an aluminum eye at each end to slip over the bollards. Standard maximum clear opening between the bollards shall be 30′. Front and rear arm surfaces shall be covered with red and white diamond grade reflective sheeting. Stripes shall be 6″ (152mm) wide, and shall slope at 45 degrees down toward the arm tip. Remaining exposed arm surfaces shall be painted white.

RESISTANCE STRAPS: Inside the arm tube shall run a continuous loop or loops of nylon strapping, of a size and quantity to suit the capacity requirements of the project. Resistance straps shall be guided through the eyes at each end of the arm such that the loop will engage the bollards in the arm-lowered position. Arm design shall fully enclose the straps to protect them from exposure to sun and weather so far as possible.

BOLLARDS: A pair of heavy steel bollard posts shall be mounted on either side of the roadway. The bollards shall be designed as the load carrying structure in the event of a vehicle collision and shall have a lip to assist in retaining the resistance straps.

WARRANTY: A 1 year warranty shall cover the gate and related equipment against defective material and components.

VLR Vertical Lift Resistance Barrier

GENERAL: The “Soft Stop” vertical lift resistance barrier shall be Model VLR, as manufactured by B&B Roadway, (888) 560-2060.

APPLICATIONS: The barrier shall be designed for use as a penetration resistance barrier system to capture and decelerate vehicles with minimal risk to the occupants. The barrier system shall be crash tested and certified by an independent testing facility to meet Federal Highway Administration standards for arresting and decelerating the vehicle to a safe stop.

SOFT STOP BRAKING SYSTEM: The braking system shall be designed and crash tested to safely decelerate and stop a 1,965 pound vehicle and a 4,400 pound vehicle traveling 62 mph without damage to the vehicle power train, windshield or passenger compartment. The braking mechanism shall be resettable in minutes and capable of sustaining repeated crashes without replacement of any of the braking system parts. The payout strap shall withstand repeated crashes and shall have an expected life of 5 years. The braking system stopping force shall be adjustable to allow tailoring the system for various vehicle weights, stopping distances and roadway widths.

CAPTURE SYSTEM: The capture system shall be designed for ease of replacement and shall be crash tested to safely capture and maintain control of a 1,965 pound vehicle and a 4,400 pound vehicle traveling 62 mph, while bringing each vehicle to a safe, controlled stop. The test vehicles shall remain stable vertically and horizontally and shall not veer into adjacent traffic lanes.

SYSTEM RESET AFTER CRASH: After a normal crash into the capture and braking system, the demonstrated repair time to get the system operating back into service shall be 30 minutes or less using normal hand tools without the use of cranes or other mobile equipment. This shall include resetting the brakes and replacement of capture panel.

OPERATING MECHANISM: The Operating mechanism shall consist of two pairs of vertically mounted tubes, an electro-mechanical drive system, counter weights as required to balance the loads, a pair of carrier mounted mechanical payout brakes, a net panel capture system and other electrical and mechanical equipment. The capture panel shall be mounted on carrier pins and shall be raised and lowered by the electro-mechanical drive system. The capture panel shall be held in a stable position by the carrier pins on each side of the roadway which shall release the panel during a normal crash without damage to the carriers. Operating time to open or close the roadway shall not exceed 18 seconds.

ELECTRO-MECHANICAL DRIVE: The electro-mechanism shall consist of an instant reversible electric motor, a fully enclosed worm gear speed reducer and a chain drive system to raise and deploy the vehicle capture panel. The operating mechanism shall be counter-balanced with enclosed counter-weights to minimize wear and loading to the electro-mechanical drive system.

MOTOR and BRAKE: The motor voltage and phase shall be as specified by the customer and shall include a motor mounted brake to assure accurate and stable stopping positions. The motor horsepower shall be as recommended by the barrier manufacturer to suit the installation, from 1 to 2 hp. The motor shall be a C-face design and shall be mounted directly to the transmission. The motor shall be instantly reversible and overload protected.

LIMIT SWITCHES: Suitable limit switches shall be incorporated onto the barrier system to provide safety, accuracy of barrier deployment and interfacing with other equipment and communication systems as required for each installation.

ACCESS DOORS: Suitable access doors shall be provided to all access to all equipment as required for service, parts replacement and adjustments. Suitable locks will be provided as required for safety and vandal resistance.

COUNTERWEIGHTS: Counterweights shall be provided to mechanically balance the operating mechanism to minimize wear, drive loading and power requirements. Counterweights shall be sectional and shall be balanced at the factory.

MOUNTING: The barrier shall be fixed to a suitable foundation, as specified by the project engineer, using twenty-four 1” (25mm) diameter anchor bolts. The barrier housing base shall provide 1.25” (32mm) mounting holes.

HAND CRANK: Both a handcrank and a drill crank shall be provided with each barrier to facilitate manual operation.

COUNTERWEIGHTS: At the rear end of the side arm tubes, hot dip galvanized counterweights shall be mounted to balance the arm. Counterweights shall be sectional and shall be balanced at the factory.

SAFETY SWITCHES, TERMINAL BLOCKS AND WIRING: A manual disconnect switch shall be provided, pre-wired at the factory to break the main motor leads, to protect personnel during service. A handcrank safety switch shall be provided to prevent automatic actuation of the barrier during manual operation. Control components and terminal blocks shall be mounted inside an electrical enclosure, which shall be mounted inside the operator housing. Pressure-type, modular terminal blocks shall be fully labeled and clearly coded to wiring diagrams. All control wiring shall be clearly coded to wiring diagrams and shall terminate at the terminal block. Connections to screw-type terminals shall have lugs. Conductors shall be type XHHW #14 AWG stranded, minimum.

ACCESSORIES AND MODIFICATIONS: All common accessories and modifications shall be available. Custom modifications and accessories shall be available through coordination with manufacturer.

WARRANTY: A warranty shall cover the barrier and related equipment against defective material and components for 1 years from date of shipment from manufacturer. Manufacturer shall furnish replacement parts for a minimum of 10 years. Replacement parts for most components shall normally be available in 1 working day. Lamps, fuses and other components designed for a life less than 1 year shall be covered for the rated life of the component or the warranty period of the component manufacturer.

PARTIAL LIST OF ADDITIONAL OPTIONS (contact factory for detailed specifications):
Stainless Housing
Capture Panel Finishes, Materials and Colors
Mounting Template and Anchor Bolts
Arm Lights and Flasher
Alternate Door Latch Styles
Door Strap with Integral Heavy Duty Padlock Hasp
Reflective Button Delineator
Tamper-Resistant Door Latches
Gong or Vibrating Bell