I’m using QGIS 3.6.1 and OSM Tools 1.0.2 and trying to map best response times for Emergency Fire vehicles from their various stations and show 4, 7, and 9 minute response times. The intent is if any given station can respond in 4 minutes, it should be shown that way.
Below you can see two fire stations (red stars) and the resulting Isochrone run. It has the unusual result that it shows the top-right station has needing 9 minutes to get to its own location. So clearly, I’m misunderstanding or doing this wrong. If I run for single stations it works fine.
It looks like there is an issue when two polygons intersect - I want the minimum time and I think it is showing me whatever polygon was calculated first.