30-Stockton
30-Stockton was a transit bus route in the San Francisco Municipal Railway system. This route had bus stops on Stockton Street and Van Ness Avenue. 

In late 1986, a Flyer Industries E800 bus assigned to this route, bearing coach number 5157, was traveling down Columbus Avenue when Nyota Uhura and Pavel Chekov were asking for directions to the Alameda Naval Base. The front of the bus bore an advertising sign for Diet Pepsi. ()

External link 
 SFMTA.com – official site