Without knowing any details about this project, it doesn't seem like this money is being spent well. In 2012, there were 103,500 enplanments at Charles Shultz-Sonoma County airport, or about 283 per day. Assuming that ten percent (a very generous assumption) of these passengers will take rail to the airport, this is less than thirty passengers per day. I support a strong commitment to transit but it is difficult to justify spending $30M for less than thirty daily passengers.
SMART train to connect Marin to Santa Rosa airport
By Mark Prado
Marin Independent Journal
12/18/2013
"Marin residents taking flights out of the Charles M. Schulz-Sonoma County Airport in Santa Rosa will have a new way to get there in a few years.
On Wednesday the Metropolitan Transportation Commission approved $16.7 million in funding for the Sonoma-Marin Area Rail Transit train project to build a rail station at Airport Boulevard, about a three-minute shuttle ride away from the airport. The dollars complete funding for the $29 million extension.
A station near the airport would serve regional travelers, especially once a project to expand the runway to accommodate larger jets at the facility is completed next year..."
http://www.marinij.com/novato/ci_24753338/smart-train-connect-marin-santa-rosa-airport