Forewarned is forearmed.

The Valley Transportation Authority doesn’t think federal matching funds for transit projects are a thing of the past. Or that California’s cap-and-trade market, which also provides transit funding, is in its death throes.

On the off-chance that it’s wrong, VTA is already planning for how to protect its BART extension project to San Jose, which depends on both funding sources in addition to the Measure B funds that county voters approved in November.

A test of whether…