BART is based on old technology. Here is an article presenting some of the data.
Walnut Creek station had a fire on the third rail. http://www.sfgate.com/bayarea/article/Walnut-Creek-BART-Station-closed-by-equipment-fire-8759514.php www.sfgate.com/bayarea/article/Walnut-Creek-BART-Station-closed-by-equipment-fire-8759514.php
What you'll find.
This blog is a raw dump of information about how to create the worlds best mass transit system in the Bay Area.