FP-96 English Version - Eastern Federal Lands Highway Division

Section 635(e) After installing all of the advanced warning signs for the lane closure,move the shadow vehicle into the lane that is to be closed to a position 100feet in advance of the closing taper location. Install the channelizing devicesfor the taper in the shielded lane.(f) Move the shadow vehicle off the roadway and past the taper on the shoulderand remain in position until the flashing arrow panel for the closure (ifone is to be provided) is placed and operating. Move the shadow vehiclewith the workers as they proceed to set up the remaining devices as additionalprotection.635.17 Pavement Patch. Furnish an asphalt mix according to Section 401,402, or 417 to repair potholes and rough spots in the traveled way beforereopening travel lanes to traffic.635.18 Variable Message Sign. Furnish a self-contained, trailer mountedsign system consisting of a sign message panel, controller, power source, andstructural support system. Make the trailer and sign support system safetyorange. Furnish a sign system that:(a) Has a 3 line sign message panel containing at least 8 modular and interchangeablebulb or dot matrix assemblies per line, each capable of displayinga character.(1) Bulb matrix. Furnish a sign panel assembly containing eight lampbank matrices with a minimum of 7 X 5 lamps per line, which displaysup to eight characters minimum, 18 inches minimum in height. Furnishrugged, high performance, 2 inches diameter, sealed beam unit lampsrated at 24 volts, 20 watts with a minimum light output of 8600 lux.(2) Dot matrix. Furnish a dot matrix assembly containing electromagneticallyactivated fluorescent yellow dots. Illuminate the sign panel byinternal backlight. Activate the backlight system by photo cell system tomeasure both vertical and horizontal ambient lighting. Provide a manualover-ride switch to deactivate the photo cell system.(b) Is legible from a distance of 900 feet.(c) Cycles messages so 3 message cycles are displayed to the driver whileapproaching the sign at 55 miles per hour from 900 feet.645