Build All The Trains Everywhere

But ultimately it's a big problem that San Jose is 51 miles from San Francisco and that SF is increasingly a bedroom community for it.

The plan calls for erecting poles and wires above 51 miles of track from San Francisco to San Jose, installing power supplies along the rail corridor and purchasing a new fleet of trains. Caltrain anticipates construction beginning in 2016 and finishing by 2021.

51 miles is a long commute, no matter how you do it.