Specifications include, but are not limited to: Design and Performance Requirements: The trailer attenuator shall be FHWA tested and approved to meet the MASH test level 3 criteria (62.5). The trailer shall have been subject to MASH test 3-50, 3-51, 3-52, 3-53, and occupant ride-down acceleration limits (G’s) must be in the preferred range of FHWA guidelines. The trailer axle shall be designed for highway speeds, heavy-duty torsion suspension type, mid-mounted within the unit. The trailer tires shall be of the proper load range, designed for highway speeds. The trailer must have an anti-rotational system to prevent the Trailer Attenuator from rotating to the side or detaching from the host vehicle in an offset angles impacts, test levels 3-52 and 3-53. The Trailer Attenuator shall be rated for use with a host vehicle of 10,000 pounds or greater. The anti-rotational system shall allow the Trailer attenuator to act like a normal trailer when being towed. Hitch: The Trailer Attenuator shall have a height adjustable hitch and be capable of attaching to and rated for use with the standard NHDOT pintle hook (Holland, model PH-30RP51, 30,000#), pintle height of 26” which includes a ½” thick x 32” wide steel plate. Safety chain shall be included. Lighting: The Trailer Attenuator shall have a trailer lighting assembly per FMVSS No. 108, “lamps, Reflective Devices, and Associated Equipment.” The unit shall include LED brake lights, LED taillights, LED turn signals, reverse lights, and an ICC bar light. The 7-pin trailer connector shall be a Cole Hersee, model 12082 or 12092, or equivalent. Jack and Brake System: The Trailer Attenuator shall incorporate a single jack with lifting and static load capacity sufficient for the unit. An integrated brake system shall be included and designed to automatically lock the trailer brakes in the event of a hitch failure. Arrow Board: The arrow board shall be mounted to the front of the unit (hitch end) per MUTCD (Manual of Uniform Traffic Control Devices) guidelines at a height of 7’0” to the bottom of the arrow board. The Trailer Attenuator shall have affixed to the frame a receiver to provide the mounting of the arrow board to the trailer. The receiver system shall be of sufficient strength to proper support the arrow board during transportation of the trailer attenuator. Standard Specifications: Panel: 48” X 96” Overall: width 96”, frame width 48”, overall depth 48”, frame depth 36” Frame: 1.75” X 1.75” X 0.125 steel tubing Sign Panel Support 1.5” X 2.5” X 0.125” steel tubing Battery Compartment shall be low-density polyethylene Lamps: 15 LED PAR 46 Amber Winch Tilt: Solar Power: 12-volt DC-50 Watt single crystal Battery Power Source: 12 volt DC, provided by (1) deep cycle battery Controller: Wireless, battery operated controller TRAFCON, model T-8505 or equivalent
