looking east to the trackwork and overhead wires at church st... in the background, you can see the muni metro subway portal leading into the market st subway to downtown... the tracks are for the j-church (which turns south down church st) and the n-judah (which comes west, towards the camera along duboce ave)... the overhead wires are also for the 22-fillmore bus which runs north-south on church st at this point.