San Juan Capistrano is shaped by a handful of high-impact routes and driving patterns:
- I‑5 congestion and merging behavior near local on/off ramps can create sudden slowdowns where heavy trucks need extra stopping distance.
- SR‑74 (Ortega Highway) brings a mix of commuters, weekend drivers, and large vehicles navigating grades and curves—conditions that can amplify the consequences of a truck driver’s speed or inattention.
- Local surface streets can feel “neighborhood calm,” but delivery traffic and service vehicles still move through tighter lanes, school zones, and intersections where sightlines can be limited.
These local conditions matter because they influence what evidence is important, what safety rules may apply, and how insurers argue about “what should have happened.”


