Update: More from Pedestrianist and Transbay Blog.
Lots of different people! The next question is how do they get to and from BART, and the answer is interesting. BART recently released a that releases data about who uses the system. I picked out some of what I feel is interesting data from the report:
1. The Majority of trips (88%) during peak hours were for work related trips. They break them out for mid day which is more even for other types of trips but certain stations have certain trip patterns such as shopping at Powell or medical at Rockridge and MacArthur.
2. 68% of BART riders have a car available to them and 21% of riders have parking available to them for free at their destination. However 42% of the folks who travel on BART only in the East Bay have access to free parking.
3. 58% of riders have been doing so for over a year.
4. What I found the most interesting, BART which was designed for the Automobile gets a large amount of car trips from home as the origin. Some places have less such as 18th Street which gets 81% of passengers from walking. 12% of people at Ashby bike to the station(Berkeley is full of more bikers to BART in general).
The reason the origin is interesting is the reason why the destination is interesting as well. The design of the system tells how it is being used. While designed for cars from the burbs, the areas that are urban get more walking trips. And the destinations are walking destinations too meaning that the more places we can connect with BART, the more people will take the line if close to employment. Also, if you have more urban stations, people use them for short trips.
5. BART Customers follow the makeup of the region in terms of income and ethnicity.
So there is much more information in there, but these were what I found most interesting. I think really it teaches us that we need to be intelligent in how we design systems. If we put more stations near destinations, more people will use the system.