• Posts
  • RSS
  • ◂◂RSS
  • Contact

  • Bus Plotter IV: Extrapolate From Stop Predictions

    September 26th, 2010
    programming, mbta, transport, python, tech, mbtaplot  [html]
    I've made the plotter now take advantage of the "predictions" command offered by the webservice that tells you how many minutes it will be before a specific bus arrives at a given stop. Instead of doing linear extrapolation from the previous two reported positions it uses the previous position and an upcoming stop. I first tried using the next stop to do predictions, but because the webservice only provides data at the minute level, this was much too inaccurate and I switched to using a threshold of two minutes out. There might be multiple stops two minutes out, so we break ties by taking the closest one to the last known bus location.

    See it in action: mbtaplot

    Recent posts on blogs I like:

    Learning Worst Industry Practices

    If I have a bad idea and you have a bad idea and we exchange them, we now have two bad ideas. But more than that. If I have a bad idea and you have a good idea and we exchange them, we should both land on your good idea – but that requires both […]

    via Pedestrian Observations September 20, 2020

    Collections: Iron, How Did They Make It? Part I, Mining

    This week we are starting a four-part look at pre-modern iron and steel production. As with our series on farming, we are going to follow the train of iron production from the mine to a finished object, be that a tool, a piece of armor, a simple nail, a w…

    via A Collection of Unmitigated Pedantry September 18, 2020

    Learning Game

    I came up with this game. In the game one person thinks of something and then gives the other person a clue. And the other person writes a guess down on a blackboard or a piece of paper. Or really anything you have that's laying around that's av…

    via Lily Wise's Blog Posts September 17, 2020

    more     (via openring)


  • Posts
  • RSS
  • ◂◂RSS
  • Contact