At 6:50 a.m. on a Tuesday morning in October, cars streamed into Davis’ Amtrak station parking lot. Cyclists zoomed in, too, some locking up their bikes and others hopping off just in front of the tracks, ready to lift their bikes on board. The sky was still mostly dark, and this group of travelers looked no different than those ambling outside a Muni platform in San Francisco, waiting to head downtown. But many in this group of commuters would be traveling as far as 70 or more miles — upward of two hours — to get to their final destinations.