Discussion related to commuter rail and transit operators in California past and present including Los Angeles Metrolink and Metro Subway and Light Rail, San Diego Coaster, Sprinter and MTS Trolley, Altamont Commuter Express (Stockton), Caltrain and MUNI (San Francisco), Sacramento RTD Light Rail, and others...

Moderator: lensovet

  by rail10
Is it possible for the computerized atc BART subway trains to run under a mechanical fixed automatic block traffic light system with trip arms without cab signals for speed control as found in older subway systems?
  by Head-end View
I believe your question is moot because BART trains are a wider gauge than the usual so they can't run anywhere except on BART's own tracks built to that unusual width, slightly wider than the standard gauge. :-)

  by Phil Hom
It's like asking if you can convert an automatic transmission to a stick shift.

It could be done, but bad return on investment.