A day of Muni, according to NextBus

Black is less than 7mph. Red is less than 19mph. Blue is less than 43mph. Green is above that. The day is the 24 hours just before I posted it.

  • Tom Purcell PRO 5y

    Nice visualization!
  • Eric Fischer PRO 5y

  • francisco delatorre 5y

    this is super-awesome! how did you pull all this data together? did you do it yourself, like culling stop info from nextbus? or is this data publicly available and you put together the map?

    regardless, it is pretty freaking cool.
  • Eric Fischer PRO 5y


    The data is public -- see www.sfmta.com/cms/asite/nextmunidata.htm and the "vehicleLocations" request. Each time you make the request it will send back the latitude and longitude of where each bus was the last time it checked in and how long ago that was.
  • Davvi Chrzastek 5y

    This is wonderful! What software did you use?
  • Eric Fischer PRO 5y

    Thanks! I used a couple of perl scripts to process the data and write out a PostScript file, and Ghostscript to render that to a JPEG.
  • Davvi Chrzastek 5y

    Do you think its possible to create this as a layer in Google Maps?
  • georgebell 5y

    Please check out my viewer for TTC Data...

  • Joseph H 5y

  • sethoscope PRO 5y

    I love the rounded-interior corner shape created by the low sampling rate.
  • blarfiejandro 5y

    Davvi Chrzastek Yes, it should be possible to apply that data to a variety of maps. NextBus already has a Google Maps version of their real-time map available from their web site. I used OpenStreetMaps so that I could layer the street and station names on top of the speed information.

    The N-Judah according to NextBus by blarfiejandro
  • blarfiejandro 5y

    Also worth noting that depending on what your use is, you'll want to spend some time cleaning up the NextBus data. I tend to get 2-3 vehicles a day (often cable cars) that report speeds of over 100mph... and (more often) vehicles nowhere near a street.
  • Davvi Chrzastek 5y

    blarfiejandro Glad to know! Thank you.
  • Simon Fraser PRO 5y

    Congrats Eric, you made Neatorama!
  • sunshineboz PRO 5y

    yes, I found your photo from browsing Neatorama too, awesome!
  • Greg Roberts 3y

    Eric Fischer brilliant!
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Uploaded on April 14, 2010
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