Travel time calculator QGIS

Question

I will try explain this as best I can.

I have a point on a map and I want to create buffers surrounding the site; for example, 10Km, 20Km 50Km.  This is easy.  But I also need to show buffers for distance from site, based on road network. lets says 30mins, 60mins 180mins etc.

I have a detailed road network map showing the various road classes, and I could assign average speeds to them but from here... I am lost.

Is this possible in QGIS 2.6.1.

Also if I could use Googles route calculator it would be AMAZING!

Oh and I have tried the route calculator tool, but I want to put in point a, then identify max travel time, then show polygon of area.

bugmenot123 · Answer

You can either use pgRouting or if not using your data but the OSM street network would be fine, use the OSM Route plugin: Enter a start point and fill out the Accessibility Analysis options.

JosE · Answer

For whoever also stumbles on this question. Now for more than 2 years since the inital question was raised and QGis 3.X has become more mature, one could achieve this by ORS tools or QNEAT3

ORS tools uses the Open Route Services API (online) and has some
limitations
QNEAT3 can be used for offline/own network files

Gleb V · Answer

I want to suggest you the isochrone solution I've just developed: https://github.com/punkerpunker/isochrone. It might be interesting for you, works out of the box and solves task you've mentioned.

Travel time calculator QGIS

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