Via Atrios, we learn that people are price sensitive:

With the price of gas approaching $4 a gallon, more commuters are abandoning their cars and taking the train or bus instead.

Mass transit systems around the country are seeing standing-room-only crowds on bus lines where seats were once easy to come by. Parking lots at many bus and light rail stations are suddenly overflowing, with commuters in some towns risking a ticket or tow by parking on nearby grassy areas and in vacant lots.



The question is: What happens next? What really shouldn't happen is for politicians to run around talking as if expensive gasoline is a temporary phenomenon. Responsible leaders will tell people that prices will fluctuate, but that as long as the Chinese and Indian economies keep growing, the general trajectory will be upward. Then they should sympathize with people who would like to take transit, but find it prohibitively inconvenient and with people who've just started taking transit and are finding it annoying and they should commit to making transit better and more available.

Alternatively, you could act like southern Florida and propose steep service reductions on your commuter rail system. But that'd be crazy. Jurisdictions with existing commuter rail lines need to make service more frequent. With transit, you can get into good equilibria and bad equilibria. On the good path, you have tons and tons of people who want to ride your line and as a result service is very frequent so as to accommodate all the traffic. And because service is so frequent, lots of people find the line convenient to use. On the bad path, infrequent service leads to low ridership which leads to infrequent service which leads to low ridership.

Matthew Yglesias is a former writer and editor at The Atlantic.