Today’s Headlines

  • More on Market Street Plan (SFGate)
  • BART Escalators to get Lids (Hoodline, SFWeekly, Curbed)
  • BART Train Ad Wrap (SFChron)
  • Developments Planned Near BART (BizTimes)
  • Map of BART Station Crime (EastBayTimes)
  • Map of SF’s Privately Owned Public Spaces (Curbed)
  • City Still Nervous About Millennium Tower (SFExaminer, SFBay)
  • Ever Wonder if Beg Buttons Really do Anything? (SFGate)
  • Pics of Senior Rally for Safer Streets (SFExaminer)
  • More on Uncollected Cable Car Fees (SFChron)
  • Embarcadero Fire Station Could be on the Water (SFChron)
  • Proposed San Mateo Sales Tax Popular for Caltrain, not Bikes (Almanac)

Get state headlines at Streetsblog CA, national headlines at Streetsblog USA

  • JB

    Re pedestrian push buttons.

    I noticed that push button requests for walk signal is cancelled by the computer in some situations. A few years ago on Embarcadero at Washington or Broadway, for example, the push button request is cancelled if a F Market street rolls by after pushing the button.

    More recently, I noticed the push button requests on Great Highway is cancelled if a southbound car on Great Highway wants a left turn into JFK.

  • thielges

    Sounds like inadequate programming of the controller. Instead of cancelling the walk button request, it should have been deferred to the next cycle.

    I’m curious that even in these recent times when electronics and computers are incredibly cheap and powerful that traffic light controllers seem to be frozen in the 1970s. For decades a standard sophomore year project for electrical engineering students was to design and build a traffic light controller. While real traffic light controllers are held to very high standards for functional correctness and reliability, they’re really basic, simple devices. The computer you’re sitting in front of contains circuitry a million times more complex than a traffic light controller.