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Analyzing Caltrain Delays

64 点作者 jsweojtj大约 9 年前

3 条评论

mattcaywood大约 9 年前
Data scientists blog about Caltrain data, come up with convoluted hypothesis about bias in sensors at two stations.<p>Commenter on blog notices that Caltrain is occasionally single-tracking between those stations due to a bridge replacement. [1]<p>&quot;Data science&quot; ends up with a bloody neck from Occam&#x27;s razor.<p>[1] <a href="http:&#x2F;&#x2F;www.caltrain.com&#x2F;projectsplans&#x2F;Projects&#x2F;Caltrain_Capital_Program&#x2F;San_Mateo_Bridges_Replacement_Project.html" rel="nofollow">http:&#x2F;&#x2F;www.caltrain.com&#x2F;projectsplans&#x2F;Projects&#x2F;Caltrain_Capi...</a>
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guard-of-terra大约 9 年前
Seriously, need to break that vicious cycle: you get used to things going bad, people who run them get used to not delivering, breaking due process, posting unrealistic schedules, and BAM - now you think the problem can&#x27;t be solved, only plotted.<p>I don&#x27;t remember last time when I have not seen a train at a station at scheduled time, and the place where I live doesn&#x27;t expire confidence. When something is late, it gets in the news. Not every week.
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ZanyProgrammer大约 9 年前
If only Caltrain had a decent API for developers that produced data that is needed for any serious analysis (like train number, speed and lat&#x2F;long). I hate having to resort to hackey workarounds like scraping for this info. I believe the NextBus API for MUNI has actual positional data and vehicle info. Caltrain, being the mediocre agency it is, has a next to useless API (if I remember the docs correctly on 511.org).
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