This bid specification describes four (4) custom-built, solar-powered trailer-mounted 48” x 96” flashing arrow boards with a self-contained battery power supply. These units will be used under various conditions, ranging from (mostly) being towed behind a tandem-axle, class-8, heavy truck, in a mobile operation to unattended stationary use for permanent lane closure. Bidders must submit their bid on units that meet or exceed these specifications
Additional Note
These trailer-mounted arrow boards are subjected to severe duty use. The majority of the time they are pulled behind tandem axle heavy trucks following patch crews, road sweepers, or other road maintenance crews. They are also subjected to extreme stress from air pressure, while traveling down the road in the upright position. As such, they must be extremely durable and over-built. This is the reason for heavier duty box tubing than normally used, the rubber torsion axle instead of leaf springs, the necessity of extra bracing and gussets. Over the years, we have experienced many controller failures; controllers need to be more durable and less susceptible to damage from vibration and corrosion. Solar panels have shattered or have become airborne and “missing in action.” Again, these need to be made more durable and vibration proof. If you and your product are up to this challenge – we welcome your bid.
