Earlier quoted context omitted.
Conveniently, I've put together an isochrone map generator: https://benwheatley.github.io/Isochrone/web/?region=london&c... The origin point selected here is roughly Mermaid House, on the north side between the Millennium Bridge and Blackfriars station. My route-finding here is more than a little naïve, instant acceleration to each road's speed limit, full-speed turns, no traffic, lights always with you, etc. but the…
> My route-finding here is more than a little naïve, instant acceleration to each road's speed limit, full-speed turns, no traffic, lights always with you, etc. but there is a place within 60 minutes of all locations, pre-selected in that URL. It's an interesting project, but that makes it completely worthless. Nobody's driving to central London anyway - journey times are measured by public transport. And even if the…
Sure, one of my original intents was to get public transit data and include it. Turns out that's somewhat harder to get right than car/foot/cycle routing with OSM map data.