Post B7d0ZKpM0y1IwtZXpA by leo@60228.dev
 (DIR) More posts by leo@60228.dev
 (DIR) Post #B7WorW300OUh0njfnM by cosine@anticapitalist.party
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       I made a little tool that helps me get around on the #mbta in #boston. Based on a paper I read in grad school, it shows you a range of possible arrival times rather than a single (usually wrong) estimate.It's based on historical data from the MBTA and a detailed statistical model, so it knows about missed connections, ghost buses, and rush hour slowdowns.Let me know what you think?https://trainkid.boston
       
 (DIR) Post #B7X9MO3PlwqIHVvanA by amsomniac@mastodon.mit.edu
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       @cosine ooh! this is a cool project. I'm excited to use it when I'm in Boston
       
 (DIR) Post #B7XC3K7WTPuwRRS18S by sbourne@mastodon.social
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       @cosine Back before the T had any online data or tools based on it, I started keeping a log of when I left my house, when I arrived at the bus stop, when the next bus showed up, how full it was at destination (it was a 3xx Express into Boston), and what time it arrived in Boston. Later I was able to add bus and operator numbers. I could calculate seasonal differences in walk times, how close the published times were to everyday(s) reality, and more. Fellow passengers would ask me questions 😂
       
 (DIR) Post #B7XDagxMgqC2mFAtjU by netopwibby@social.coop
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       @cosine @clew Could've used this all my life there. Will share with my friends still in Boston!
       
 (DIR) Post #B7XZl8CKSaQP9UYbMe by cosine@anticapitalist.party
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       @sbourne that's so cool!!
       
 (DIR) Post #B7Z05NeXV4zaqK1ozw by uxMark@cosocial.ca
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       @cosine This looks super cool. Do I need to be in Boston to use it? When I try to get a trip in Boston in my browser here in Waterloo I don’t get any result back. (I tried to get a route from Boston Garden to City Hall — I’m not even sure if those geocoded correctly.)
       
 (DIR) Post #B7ZFCBITKueHrSPKPA by cosine@anticapitalist.party
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       @uxMark Yeah, the geocodes come from OSM so they're not that great. "Boston City Hall" will get you there, "City Hall" won't.
       
 (DIR) Post #B7ZKP55aEBsA8wLimu by uxMark@cosocial.ca
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       @cosine Thanks! I’ll give it another try 😀
       
 (DIR) Post #B7clFTftuZSNHjDwTA by leo@60228.dev
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       @cosine i assume figuring out when a bus will show up more than 5 minutes in advance remains an undecidable problem, right?
       
 (DIR) Post #B7d0ZKpM0y1IwtZXpA by leo@60228.dev
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       @cosine oh wait does this include buses? didn't give directions for a route where i would've expected them but might just be that the next bus was too far away
       
 (DIR) Post #B7d0ZLDoY1aOAl14wy by cosine@anticapitalist.party
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       @leo  Try checking the "Show slower options" box; it hides strictly dominated routes by default.  And to your first question, yes; the definitive conclusion I've drawn is that almost any route has a standard deviation of at least 5 minutes, often 10-15 when connecting or at the beginning of a line.