Impacts by over-height (OH) vehicles on bridges, commonly known as ‘bridge hits’, cause significant risk to safety and preservation of transportation infrastructure in the USA. Currently, available over-height vehicle detection systems (OHVDs) have specific site requirements, extremely high installation costs, and propensity for false alarms, which limit their field deployment to few locations. This study describes a new, enhanced LADAR-based OHVDs (L-OHVDs), which can be installed on the face of a structure to be protected and can measure the height of an approaching vehicle before the safe stopping distance from the structure. Built using off-the-shelf components and a patent pending optical design, it exhibits enhanced features like vehicle detection, actual height measurement, and collision prediction with no reported false alarms. The developed prototype has a detection range of 220 ft with height measurement accuracy (±0.66 inches) that is better than currently available OHVDs. This system has exceptional precision and is well suited to detect OH trucks and tractor trailers approaching a low vertical clearance bridge. With superior performance and cost-effective installation, the proposed L-OHVDs has the potential to reduce occurrences of ‘bridge hits’, thereby limiting consequences such as congestion and damages to bridge while sustaining safety of motorists.


    Access

    Access via TIB


    Export, share and cite



    LADAR‐based collision warning sensor to prevent over‐height vehicle bridge hits

    Singhal, Abhishek / Kamga, Camille / Agrawal, Anil Kumar | Wiley | 2018

    Free access

    FLASH LADAR COLLISION AVOIDANCE SYSTEM

    GILLILAND PATRICK / STETTNER ROGER / HEUGHEBAERT LAURENT et al. | European Patent Office | 2021

    Free access


    MODULAR LADAR SENSOR

    GILLILAND PATRICK / HEUGHEBAERT LAURENT / SPAGNOLIA JOSEPH et al. | European Patent Office | 2016

    Free access

    Automotive auxiliary ladar sensor

    STETTNER ROGER / GILLILAND PATRICK / DUERNER ANDREW | European Patent Office | 2017

    Free access