Managed Lanes
Express Lanes | High Occupancy Vehicles | Park & Ride
Managed lanes are used to address congestion by controlling traffic movement on the highway. Two common approaches to lane management are restricted use based on vehicle eligibility, which is based on vehicle occupancy or type, and control of access by limiting the number of vehicles entering and exiting.
| Resources | |
| FHWA Managed Lanes Primer (PDF) | Managed Lanes System Plan 2020 (PDF) |
California Managed Lane Network
Approximately 40% of the nation's total managed lane network is located in California. These facilities are predominately located in large, urbanized areas of Northern and Southern California. Additional information regarding each region's managed lane network may be found at each corresponding Metropolitan Planning Organization (MPO).
| Northern California Network | |
| Sacramento Area Regional MPOs | |
| Placer County Transportation Planning Agency | San Joaquin Council of Governments |
| Sacramento Area Council of Governments | |
| San Francisco Bay Area Regional MPOs | |
| Alameda County Transportation Commission | Santa Clara Valley Transportation Authority |
| Marin County Transportation Authority | Solano Transportation Authority |
| Metropolitan Transportation Commission | |
| Southern California Network | |
| Los Angeles Area Regional MPOs | |
| Los Angeles County Metropolitan Transportation Authority | San Bernardino Associated Governments |
| Orange County Transportation Authority | Southern California Association of Governments |
| Riverside County Transportation Commission | Ventura County Transportation Commission |
| San Diego Area Regional MPOs | |
| Imperial County Transportation Commission | San Diego Association of Governments |
California Managed Lane Network Performance
Under state and federal laws, certain vehicles are allowed to access a managed lane without meeting occupancy requirements. These vehicles include plug-in hybrid vehicles, alternatively fueled and clean-air vehicles (ILEV/ULEV/SULEV), and tolled vehicles. Federal laws require California to monitor and report on the performance of all managed lanes that allow these exempt vehicles to access without carrying the minimum number of occupants. This annual report, referred to as the California High-Occupancy Vehicle Facilities Degradation Report, identifies HOV lanes that are degraded or do not meet federal performance standards.
Performance Measurement System
The Performance Measurement System (PeMS) stores and processes traffic data from over 38,000 individual roadway detectors. Users can access real-time traffic condition and historical data on the PeMS website under "Facilities & Devices" tab.