In Colorado, a Truck Tip-Over Warning System was deployed on I-70 at a cost of $446,687.

31 October 2006
Colorado,United States

Summary Information

In Colorado, a Truck Tip-Over Warning System was deployed on I-70 east bound just outside Idaho Springs to help prevent rollover crashes on sharp curves. The system consisted of two piezo weigh-in-motion (WIM) devices, traffic detectors, four fiber optic message signs, computer processing equipment and associated software, and a controller cabinet.

When vehicles were detected exceeding the maximum safe speed for their weight category, the warning system was activated and messages were displayed on otherwise blanked-out roadside message signs.

The low bid for the project was $446,687 (2002). The equipment list of the major components identified in the bid tabulation is presented in the table below.



Truck Tip Over Warning System (Ea.) (WIM)


Blank Out Sign (Fiber Optic) (4 Ea.x 8,788 $/ea.)


Steel Sign Post (W 6x12) (39.5 lf x 23 $/lf)


Steel Sign Post (W 8x18) (33 lf x 32 $/lf)


Concrete Footing (Type 3) (3 ea x 976 $/ea)


Concrete Footing (Type 1) (2 ea x 941 $/ea)

*Colorado DOT CoTrip, "Design Guidelines for Including ITS in Projects"

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CVO/Freight and ITS Session (Presentation)

Author: Drakopoulos, Alex (Marquette University)

Design Guidelines for Including ITS in Projects, "Colorado DOT CoTrip, Web site URL Guidelines Web New Format 02-05/Web Solutions Packages/Truck Overturn Speed Advisory System.xls. Last Accessed 2 February 2008

Published By: Presentation at the 12th annual ITS Forum, Wisconsin Chapter of ITS America - Smartways. Milwaukee, Wisconsin.

Source Date: 31 October 2006


System Cost

System Cost: $446,687 (2002).


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Cost ID: 2008-00178