Del Mar Train Horn Quiet Zone Status
Del Mar sits on the LOSSAN rail corridor — Coaster commuter rail, Amtrak Pacific Surfliner, and BNSF freight. The horn at LOSSAN crossings has been the subject of continued quiet-zone advocacy.
Disclaimer
Informational only — not legal advice. Quiet zone status changes; verify the current status via the FRA Quiet Zone Database and the City of Del Mar before relying on this content.
Federal framework
Under 49 CFR § 222, every locomotive must sound the • • — • pattern (96–110 dB at 100 ft) at every public highway-rail crossing. Quiet zones — segments where the horn is silenced — are established under FRA process after the city implements supplemental safety measures (medians, four-quadrant gates, etc.).
Del Mar rail context
The LOSSAN (Los Angeles–San Diego–San Luis Obispo) corridor passes through Del Mar along the coast:
- NCTD Coaster — San Diego–Oceanside commuter service, ~22 round trips weekdays
- Amtrak Pacific Surfliner — San Diego–San Luis Obispo intercity service, ~12 round trips daily
- BNSF freight — overnight freight on the same track
- The LOSSAN corridor through Del Mar runs along bluffs above the beach — most prominently the famous Del Mar bluffs, which have ongoing erosion concerns separate from the horn issue
Quiet zone status — how to verify
Del Mar and adjacent jurisdictions on the LOSSAN corridor have publicly pursued quiet-zone establishment for years. Specific crossing status changes over time:
- FRA Quiet Zone Database — search by city / county for active quiet zones
- City of Del Mar official site
- NCTD Coaster — operator of San Diego commuter rail
- LOSSAN Rail Corridor Agency (regional governance)
What residents can do
- Check FRA database for current quiet-zone status of specific crossings
- Engage the City of Del Mar on quiet-zone advocacy — the city has been an active participant in LOSSAN regional planning
- Track LOSSAN Agency planning via published agendas and public meetings
Vehicle train horn rules — California state law
Vehicle horns in Del Mar follow California state law (California Vehicle Code) — see our California state legality page. Train horns at 147+ dB output may violate state vehicle code if used routinely on public roads.