Our first foray demonstrating the use of sDNA in economics is now published:
Hossain, MA, Cooper, CHV. Spatial network analysis as a tool for measuring change in accessibility over time: Limits of transport investment as a driver for UK regional development. Growth and Change. 2021; 00: 1– 25. https://doi.org/10.1111/grow.12512
One aspect of wider interest here is our proxy for road travel time, which has correlation (r2) of up to 0.99 with journey times taken from Google maps. All details in the paper so you can reapply the formula in your own network analysis.
In our case this was a national scale network analysis (3 million links) so we used selective sampling of origins to speed it up, though each origin is analysed for quantity and shape characteristics of all destinations within a 1 hour travel time radius.
