To provide some background, I am using ORS with QGIS for a thesis in the context of assessing access in rural Africa and it’s been super helpful so far!
After calculating walking time catchments (30, 60, 120min) to certain services, I was interested in conducting a sensitivity analysis of sorts by varying speed assumptions by +/- 20% to see how assumed travel times would vary in this case as a result.
Based on some digging on this forum however this seems more challenging than I first imagine - is this the case or am I missing something? As a newbie to the world of GIS and ORS, I haven’t gone too deep into the clockwork that’s behind the user interface so that would be uncharted territory for me.
Any tips or feedback here would be appreciated!