摘要: |
To reduce the number of wrong-way maneuvers and associated crashes on Texas freeways, several Receiving Agency Districts have purchased and installed intelligent transportation systems (ITS) that can detect wrong-way drivers, alert the wrong-way drivers of their error, and notify the traffic management center. However, system performance and limitations are typically not known until after the systems are purchased and activated in the field. This results in systems not functioning properly, high false-alarm rates, and increased workload for agency staff. This project shall determine the state-of-the-practice through a review of literature, assessment of current practice in Texas, review of other state agency testing procedures, and identification of readily available wrong-way driving (WWD) ITS and detection technology. This project shall also develop a standardized testing mechanism to assess performance of WWD detection technologies, evaluate existing technologies, and identify the benefits and limitations of each existing technology. Based on the findings, the project shall develop implementation guidance for the technologies tested and draft content for a WWD detection technology specification. |