100 meter isochrone walking distance wrong result

[jschnell]

Hey,

have a look here for a short explanation:

Larger isochrones then should be

Hey, no, this is a consequence of the algorithm used to generate the isochrones. When you use a point on a rather long edge (way) as a starting point, the isochrone center will snap to one of the ends of the edge (way) and the isochrone will include the whole edge. This is a rather exotic edge case, and since we’ll switch to a different algorithm where this problem is fixed in the near future, this will probably not change until then. Best regards

In general, isochrones are quite tricky - This post and this issue show some more examples on where isochrones are finnicky to get right.

Best regards