• Posts
  • RSS
  • ◂◂RSS
  • Contact

  • Visualizing Prediction Inaccuracy

    February 26th, 2012
    mbtaplot, transit  [html]
    A major goal of mbtaplot is to visualize bus predictions by converting timing information to locations on a map. One thing I've struggled with is how to represent information getting out of date: the longer since we last got a position update the less accurate our estimate is. I think I've got a good solution now, adding a line back from the prediction to the last reported location. The longer the tail, the less sure we are about the position:






    The main thing I like about mbtaplot over nextbus or mbtainfo is that because it gives me more information I can second guess the predictions. The goal with this new feature is to intuitively convey more information about the trustworthiness of the information.

    (At some point I want to figure out how to get something like this on my phone; the current version uses too much javascript for that.)

    Comment via: google plus, facebook

    Recent posts on blogs I like:

    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

    Hong Kong Construction Costs

    I think we have found the #2 city in urban rail construction costs, behind only New York. This is Hong Kong, setting a world record for the most expensive urban el and encroaching on Singapore for most expensive non-New York subway. As we look for more da…

    via Pedestrian Observations September 16, 2020

    more     (via openring)


  • Posts
  • RSS
  • ◂◂RSS
  • Contact