Caltrain in the San Francisco Bay Area, started in 1991, BART started in the 1970’s. Caltrain had much more passengers during the 1990’s compared to the 2010’s. During the 1990’s when I lived with my mom in Sunnyvale, CA, we visited San Francisco by Caltrain, my mom and I knew about BART but since Sunnyvale is the southern most city on the San Francisco peninsula, riding BART would be back tracking to the south and east to ride BART in Fremont, CA, to San Francisco, or traveling out of the way. Since I didn’t ride BART during the 1990’s, since the Bay Area population has rapidly decreased within two years, I don’t know BART’s ridership during the 1990’s. Now (2016) BART’s ratio of passengers compared to the Bay Area is some what out of proportion, I haven’t looked at the population statistics but Caltrain’s service area may have a larger population compared to BART’S service area. I have no guess for the possibility of why BART has a large ridership. From my own observations, there are differences between the media images of both Caltrain and BART, in how those two transportation agencies portray themselves in social media. In social media, Caltrain social media accounts has much confrontations from actually Caltrain employees and individuals of the public, Caltrain frequently posts delays of individual trains, which is bad for their business commuters. BART keeps a low profile with its social media accounts, BART does posts, elevators not working at BART station of electronical issues at BART’s station, and the shooting incident in a BART train earlier this year. The low profile of BART refers to its social media activities directly intended for users of BART’S social media accounts, on most occasions, when BART issue public statements, there is a link to BART’S website or another website, Caltrain rarely has links when stating problems with current Caltrain delays or other problematic Caltrain issues.