• Posts
  • RSS
  • ◂◂RSS
  • Contact

  • MBTA Bus Plotter

    September 23rd, 2010
    mbta, mbtaplot, programming, python, tech, transport  [html]
    I've been meaning to learn web programming, and I like transit, so I made a bus plotter for the mbta. This was mostly for learning, as you can already get most of this functionality elsewhere. For example, nextbus's webservice can show you the 77 bus with all it's current locations and so can I. One nice thing about writing my own, though, is that I can tweak features. I can turn off the bus display, plot multiple routes, and indicate bus frequency with shading. One thing I want to do is make it update the buses automatically (right now you need to click the routes to update bus locations, and you can only do it every 45 seconds), or even beter, update them with predicted locations based on where they were last time we heard from them and how long it's been since.

    One thing this let me do it make a map that I've wanted for a while: bus frequency along boston area routes:

    Routes with more buses are darker and fatter. (This doesn't correctly deal with routes that go along the same road, and shorter routes will appear to have less frequent service because they need fewer buses to get the same headways. I should probably replace this with something that looks at stop predictions and takes the longest expected time before the next bus arrives as an indication of how infrequent service is on that line.)

    While I should warn you that this is very memory and processor intensive, you can generate this yourself if you'd like.

    The code is all online at github under mbtaplot. The javascript is probably not very good; this is my first time writing in that language. If you're curious about the design you can read the readme.

    Comment via: facebook

    Recent posts on blogs I like:

    Austerity is Inefficient

    Working on an emergency timetable for regional rail has made it clear how an environment of austerity requires tradeoffs that reduce efficiency. I already talked about how the Swiss electronics before concrete slogan is not about not spending money but ab…

    via Pedestrian Observations February 27, 2021

    Fireside Friday, February 26, 2021

    Fireside this week, but next week we are diving into our long awaited series on pre-modern textile production, though we will be particularly focused on the most important clothing fibers in the Mediterranean world, wool and linen (rather than, say, silk …

    via A Collection of Unmitigated Pedantry February 26, 2021

    The Troubling Ethics of Writing (A Speech from Ancient Sumer)

    (Translated from a transcript of an ancient Sumerian speech by Uruk's most well-respected Scriptological Ethicist) Writing is a profoundly dangerous technology: Access to writing was initially, and still remains, uneven. What's worse, the rich are m…

    via BLOG - Cullen O'Keefe February 15, 2021

    more     (via openring)


  • Posts
  • RSS
  • ◂◂RSS
  • Contact