I'm trying to find an R package to duplicate a specific bit of functionality of the ESRI network analyst: What ArcMap refers to as 'Service Areas'. Related terms include
- catchment areas
- 'reachability' (walkalytics package)
- network buffers
What I want looks like an isochrone, but rather than measuring the amount of distance covered in a specified unit of time, I want a polygon representing the bounds of all points within 1.25 miles over the street network.
- Nothing in the open streetmap routing machine (osrm package) meets my needs.
- Walkalytics isochrone would give me what i need, if I knew what the walking speed was.
Could someone either point me to a package with this functionality, or tell me what the Walkalytics default speed is?
I'd really like to be able to do this in R, rather than having to go back into ArcMap everytime I need to determine the network distance reachable from a given metro station.