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TfL journey planner and API
Having tired with the frustration of using TfL's new "improved" journey
planner for bus arrivals I decided to develop my own application. This has progressed to the stage of searching for bus stops by name. You have to find your own solution as the API does not provide a direct way to do it (or anyway I cannot find it). I have been looking for a bug because my application often gives very different results to the same search with the TfL journey planner but I now realise I am correct and the Tfl web site is wrong. For example, if you search for a stop called Abbey Road TfL will usually return a pair of stops on route 31 although it sometimes suggests a couple of other stops with Abbey Road included in the stop name. My application returns a total of 7 stops called "Abbey Road" served by 10 more bus routes (57, 112, 131, 152, 187, 200, 219, 226, B11). Using the journey planner to search for each of those routes reveals that every one does indeed have a stop called Abbey Road for which it returns the same bus arrivals as my application. It seems as if the TfL programmer assumed every stop in London has a unique name (as opposed to stop or Naptan code) and therefore returned only the first hit from a search (31 is the smallest nuber in the list). It seems inconceivable that the TfL developers have not tested this aspect of the search engine but they should either fix it immediately or withdraw it. Given the way many people must use the planner, especially visitors to London, it is irresponsible to leave it as it is. |
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