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Is there a way to compute isochrones for public transport while using the plug-ins available in QGIS? Or is there another way for making them?

Note: I am not a software engineer which means that some of your answers might exceed my field of study regarding programing or handling specific software.

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    Do you have public transport data? Or is that part of the problem? If so, then this is a big problem and will depend on where on earth you are. – Spacedman Feb 4 '16 at 15:23
  • No, I don't have the public transport data. That is the problem. I thought that maybe the transport information can be called directly from the software as in the case of using the OSM plug-in needed for making the isochrones for cars. I am trying to compute them for Denmark. – Adela-Ioana Moldovan Feb 8 '16 at 10:32
  • I suspect that OSM plugin knows the speed limits on roads and works out accordingly. I doubt it knows where buses, trams, and trains go. Public transport isochrones are also very dependent on the time of day and day of week... – Spacedman Feb 8 '16 at 10:57
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It's a bit difficult to answer your question without further details, but drawing isochrones is a relatively frequent (and complex) issue. QGIS alone (including its plugins) does not provide a simple way to compute isochrones. A common solution is to use a PostGIS database along with pgRouting.

You can refer to these posts in GIS SE:

That being said, there is a QGIS plugin called Walking time, which, combined with the Interpolation plugin, might be of use in your case. It may be possible to tweak it to fit your needs, but I don't know if it works well.

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See Anita's demo here:

http://anitagraser.com/2013/07/07/public-transport-isochrones-with-pgrouting/

It will require pgRouting

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  • It will also require a public transport data set, which the questioner has just told us they don't have. – Spacedman Feb 8 '16 at 10:56
  • @Spacedman I didn't catch that... thanks. – DPSSpatial Feb 8 '16 at 13:41

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