Buses are a great form of transportation for getting to any areas and neighborhoods in San Francisco. Each bus route is numbered and route maps can be found at bus stops.
The trolley buses stop at the same stops as the buses but run on electrical energy which they get from cables that they are hooked onto.
San Francisco is a fairly large city with hundreds of buses circulating around its downtown area. Although the first thing that you should do on arriving at the city is obtaining a transportation map, at times it can be easier to look at the maps provided in the bus stops.
The operating times for buses and trolley buses depend on the line but it is approximately between 5am and 1am.
The frequency depends on the line and the time, but the lines that travel through the city center all run every ten minutes or less.