Caltrain said they would try to always schedule two bike cars on certain trains, but they have no way to monitor how effective this setup is. The San Francisco Bicycle Coalition Caltrain Bikes On Board project is working on a web-based interface for commuters to monitor this effectives, but why not just use what's already available?
These are the northbound "2 bike car" train statuses (statii?) and here are the southbound "2 bike car" trains statuses. Easy as pie. I search on Tweets to @bikecar and filter on the train numbers that Caltrain says should be two bike cars.
This is far from a complete list because Ravi's "@bikecar" project needs more volunteers. Perhaps SFBC Bikes On Board can encourage participation in this useful service? The Silicon Valley Bicycle Coalition also wants to measure Caltrain's performance on the 2 bike cars. Click here to learn how you can participate.