Proposed Market Street Signal Timing: Off-peak period (1948)

Proposed Market Street Signal Timing: Off-peak period (1948), originally uploaded by Eric Fischer.

Another quirky find from Eric Fisher.

"Provided "green waves" at 17-18.4 mph west of Valencia or Dolores, 11 mph between Valencia or Dolores and 2nd Street, and 8.3-9 mph east of 2nd Street."