This is an impressive design. The partitioning of decisions into paged chunks, and the associated visual representation of that space makes destination entry easy. Common choices appear early on in the system ("get me to the airport"), and decisions have appropriate defaults ("purchase multiple tickets" automatically adds another then presents options to add or remove tickets). I've always been attracted to good information design, and this is some sweet candy.

Poor design in large organizations (BART) generally comes from the top, but BART would be lucky to get off their laurels and use this design.