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Following the Implementation of an Overheight Vehicle Detection System, No Bridge Strikes Were Reported at the Historically Problematic Low-Clearance Overpass in Maine.

METHODOLOGY The DMS in Maine displays a variety of information, including weather and roadway conditions, special events, travel times, enforcement actions, and congestion management. For the VSLS…
Content type
Date Posted
07/27/2023

Overheight vehicle detection systems on I-10 in Houston contributed to 20 fewer bridge hits per year, saving TxDOT more than $2 million in annual bridge repair costs.

FINDINGS TxDOT managers indicated the cost of repairing a bridge after an OHV hit ranges from $100,000 to $300,000. With an estimated 20 fewer bridge hits per year, TxDOT and taxpayers will realize…
Content type
Date Posted
05/08/2019

Most professional truck drivers interviewed in Ohio and California expressed favorable views of on-board connected vehicle safety applications installed on Class 8 commercial vehicles.

METHODOLOGY In the summer of 2012 driver acceptance clinics were conducted in California and Ohio to introduce the system to 112 professional truck drivers who were previously unfamiliar with the…
Content type
Date Posted
11/04/2016

A nationwide survey evaluating overheight/oversize warning systems found that eight states that deployed active infrared light or laser activated warning systems had fewer overheight load strikes on infrastructure components.

This research attempts to synthesize existing data and previous research to develop a comprehensive examination of the state-of-the-practice for oversized vehicle warning devices. The lack of…
Content type
Date Posted
11/07/2008

At a tunnel in Pennsylvania, an overheight/overwidth warning system improved safety; occasional crashes demonstrate value of system and importance of maintenance.

Content references source material no longer available at its original location.
Overheight/Overwidth Warning SystemsInstallation of overheight/overwidth warning systems enhance truck safety; however, driver perception and compliance with height-restriction warning systems should…
Content type
Date Posted
04/25/2008

Based on a nationwide survey of states operating overheight detection systems, the initial costs of active laser- or infrared-based systems vary considerably, ranging from $7,000 to $70,000.

The Alaska Department of Transportation & Public Facilities (DOT&PF) sponsored a research project titled, Evaluation of Overheight Vehicle Warning Devices, to synthesize existing data and…
Content type
Made Public Date
04/23/2008

The Michigan Department of Transportation estimated that an ITS-based active overheight detection and warning system installed at both approaches to a bridge would cost $110,000.

This summary presents the cost analysis of an active overheight detection and warning system, usually installed in advance of a sub-standard bridge structure. The cost of such ITS-based installation…
Content type
Made Public Date
04/16/2008