Duarte’s geography and traffic flow create predictable pinch points:
- Freeway merges and interchange congestion near the 210/605 corridors, where trucks are changing lanes, braking hard, and navigating short on-ramps.
- Cut-through traffic on major surface streets such as Huntington Drive and Mountain Avenue, where delivery vehicles mix with school traffic, pedestrians, and frequent left turns.
- Stop-and-go patterns that increase rear-end and underride risk when a truck follows too closely or a smaller vehicle is forced into sudden braking.
In our experience, the “why” behind a truck crash here is often tied to timing pressures and route decisions—tight delivery windows, last-minute detours, and fatigue from long regional runs that pass through the San Gabriel Valley.


