Comprehensive Work Zone Mobility Performance Management Across Project Stages

The California Department of Transportation (Caltrans) uses its Performance Measurement System (PeMS) as the key platform for monitoring and managing work zone performance. PeMS is a comprehensive roadway performance monitoring system consisting of roadway sensors for data collection, a web-based data warehouse, and a data analytics suite. Caltrans planners and engineers use PeMS to proactively manage work zone impacts across all project stages by:

• Estimating work zone impacts as part of pre-closure planning and analysis including lane requirements visualization and delay estimation;
• Monitoring and managing impacts during construction through dynamic reporting of road closure activity and status, real-time delay assessment, and detour route performance analysis;
• Analyzing and documenting project impacts and lessons learned including volume, throughput, queue length, delay, and incidents (including impacts on detour routes); and
• Using data archived in PeMS to better plan and design work zones and to compare real-time performance against historical performance.