Palo Alto residents who live near the Caltrain tracks may eventually hear a lot less from passing trains.
On Monday, Oct. 5, the Palo Alto City Council approved a $1.3 million contract with BKF Engineering to finish designing quadrant gates at three rail crossings: Churchill Avenue, Meadow Drive and Charleston Road, Palo Alto Online reported. The new gates and additional striping are what the city needs to create a "quiet zone," where trains can pass through crossings without sounding their horns.
How quiet zones work
Federal rules require trains to start sounding their horns before they come within a quarter mile of an at-grade crossing. Those horns reach 96 to 110 decibels, about as loud as a chainsaw or snowmobile. Once a crossing has enough added safety features, a city can apply to the Federal Railroad Administration to establish a quiet zone that exempts trains from the requirement.
A quiet zone isn't completely silent. According to a city staff report, gate bells will keep ringing, and engineers can still sound the horn in an emergency or when they see danger.
Where things stand
Last year, the city finished designing a quiet zone for its northernmost crossing at Palo Alto Avenue, near the Menlo Park border, working jointly with Menlo Park. City transportation staff expect construction there to finish by March 2027. That project was delayed after Caltrain's LiDAR-based Rail Sentry system detected cars backing up from El Camino Real onto the crossing, which suggested extra safety measures might be needed.
The council approved conceptual quiet-zone plans for the three southern crossings last November. BKF's contract covers plans, specifications and cost estimates. It does not cover construction, which the city expects to cost more than $4 million. According to the city's capital budget, officials expect to approve a construction contract in fiscal year 2028, which begins next July.
A stopgap before grade separation
The quiet zones are meant as an interim fix. Palo Alto is also pursuing grade separations, which would physically separate the roads from the tracks, at Churchill, Meadow and Charleston. Last month the council approved moving that design work from 15% to 35% complete. Members signaled, though, that the city may only have the money to build one. Charleston, the busiest of the three crossings, is the most likely candidate.
City budget documents call the four-quadrant gate system a proven safety measure that meets federal standards and reduces the chance of collisions at at-grade crossings.
For homeowners along the corridor, the timeline matters. Relief at the southern crossings still depends on construction funding and federal approval, and the city does not expect a construction contract before fiscal year 2028.