i name is jeffrey tumlin the executive director of the san francisco municipal transportation agency. we are very grateful how closely the secret serve iss worked with us to minimize negative impact to the transit system and particularly to center naerbds like chinatown, union square, south of market and the whole southeast quadrant of san francisco. that said, for security reasons, the yurba buena station and 4th and brandon station of the central subway will need to be closed for it duration of the event. we are grateful we are able to reroute trains, so the t3 trains instead of going into the central subway will simply follow the old route to market street subway and very importantly will be able to run high frequency shuttle trains between union square, market street station, and chinatown. this is very important for us to make sure we maintain strong conductivity to chinatown. bart, caltrain will be fully operational uneffected. sams trans and golden gate experience very miner reroutes so if you are coming to san francisco that week, please do take public transit. very importantl