Why doesn’t Amtrak run an overnight train between San Francisco and Los Angeles?

The flight route between San Francisco and Los Angeles is the second busiest flight route in the United States. And by number of flights, it’s the 9th busiest in the world.

Joining Twitter

I’m happy to share that I’ve joined the product team at Twitter! This is my second week.

I first signed up for Twitter in June 2008. Over time (and 13,886 Tweets later), it has become an essential part of my life. Through Twitter, I’ve made new friends (thanks @ mentions!)…

10 people to follow on Twitter on urban transportation

Those who know me know I love many things but two in particular: Twitter, and reading about transportation. Specifically urban transportation, and what is being done to improve safety and mobility, and in turn, improving the quality of…