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I am trying to determine how to calculate which specific settlements are within a 30-minute walk from a river polygon on ArcGIS Pro. The country I am focusing on is Nepal, thus, elevation also needs to be considered as Nepal has varying topographies. Considering that average humans can walk 1.5 to 2 miles in 30 minutes, how would I also add topographical challenges to the mix. So far I have created buffers for each settlement and that’s about it.

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    Navigating an elevation cost surface is a raster problem. A simple buffer isn't of much use if the path to be walked isn't direct. You need to spend some time researching the Tobler hiking function.
    – Vince
    Commented Jul 1, 2022 at 19:11
  • gis.stackexchange.com/questions/190144/…
    – FelixIP
    Commented Jul 2, 2022 at 20:09

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