I am trying to make transport accessibility map in QGIS, using QNEAT3 plugin to build isochrones. I need to make a map, that shows 30 minutes area of accessibility with 5 minutes interval zones.
I am using Iso-Area as Polygons (from Layer) option and Fastest Path (time optimization) in Path type to calculate.
I can't understand what units should i use in Size of Iso-Area and Contour Interval. I was trying to enter hours (0,5 for 30 mins and 0,083 for 5 mins) as in advanced parameters default speed is in km/h. But with this small values plugin doesn't work.
band_in = ds_in.GetRasterBand(1) AttributeError: 'NoneType' object has no attribute 'GetRasterBand'
As far as I understand it is because QNEAT can't make a single cell to create a raster file.
The question is: what values/units should I use if I want to get time (not distance) accessibility?