Protected intersections are an effective way to reduce bicycle crashes in dense urban areas. Los Angeles has expanded bike lanes across several corridors, yet intersections remain the most dangerous points for riders.
Many crashes occur where fast turns, wide lanes and long crossing distances create serious visibility problems. Stronger design standards can help reduce severe bike accident injuries on high‑injury streets.
How protected intersections reduce crash risks
Through the use of physical features that guide drivers and riders into safer positions, protected intersections can improve cyclist safety. Features like these help reduce speed and improve visibility:
- Corner islands create a tighter turning radius, forcing drivers to slow down.
- Forward stop bars place cyclists ahead of vehicles at red lights.
- Dedicated bike signals give riders a head start before cars move.
- Raised crossings make drivers more aware of approaching cyclists.
Unfortunately, many California cities still have dangerous intersections that put bicyclists and others at risk of serious injury.
Common problems with Los Angeles intersections
Los Angeles intersections often sit on wide multi‑lane corridors that allow fast turns and pose significant crossing distances for cyclists. Protected intersections can address these issues by separating movements and reducing driver confusion.
They also support city goals to reduce traffic deaths under Vision Zero and improve safety along high‑injury networks. Several nearby areas have already adopted similar designs with positive results.
Unsafe intersections can involve multiple responsible parties. A city may be liable if it failed to maintain safe traffic control or ignored known hazards. A driver may be responsible if they sped through a turn or failed to yield. Injured bicyclists should document the scene, gather witness information, seek prompt medical care and consider working with a knowledgeable representative.

