The California Department of Transportation (Caltrans) worked to reduce the occurrence and severity of wrong way driving (WWD) on California’s highways along with researchers at UC Davis AHMCT Research Center. Wrong-way driving (WWD) can result in collisions and fatal injuries. WWD incidents have gained attention after a series of wrong-way collisions resulted in several fatalities in the Sacramento and San Diego areas. According to the California Highway Patrol (CHP), from 2001 to 2014 a total of 193 fatal collisions and 685 injury collisions occurred on state highways in California because of WWD.

In efforts of addressing this issue, the Advanced Highway Maintenance and Construction Technology (AHMCT) Research Center developed a Vision-Based Site Monitoring (VBSM) system to monitor traffic behavior at key exit ramps to capture WWD incidents and traffic volume data as well as better understand the effects of roadway geometric design and signage on WWD incidents. An additional goal was evaluation of the performance of mitigation techniques implemented by Caltrans to minimize or eliminate WWD incidents. As a result of the traditional approach using radar and/or vision sensors for detecting wrong-way driving (WWD) seen as costly and ineffective for broad implementation, Bosch's infrastructure-free detection application was considered. This application algorithm has shown success in Europe, indicating it could be a dependable and easily accessible technology for detecting WWD. Furthermore, AHMCT conducted tests on five ramps in Davis and Sacramento, initially monitored live by Bosch. After successful initial tests, live monitoring ceased, and alerts continued as expected. The results demonstrated Bosch's algorithm's effective and cost-efficient capability to detect wrong-way drivers