What an absolutely fascinating concept
Spacetime maps: A map that warps to show travel time
21–30 of 31 posts
Re: Spacetime maps: A map that warps to show travel time
#22Earlier quoted context omitted.
In the New York City area time is the measure of distance. I think that's the same in every large Metro area.
In LA, you can go during non rush hour on what should be a 5 minute skip across an “easy” onramp/offramp, and get stuck in 2 hour traffic jam (probably an accident but who knows could just be all 3 major sports having massive games at the exact same time and you’re not a sports fan so you didnt expect carmageddon) to go 3 miles, and make it the same way back in five minutes. There is no such linear relationship. It’s…
Hilariously, LA doesn't look that distorted because it's uniformly molasses.
Re: Spacetime maps: A map that warps to show travel time
#23I don't exactly understand how it works. E.g. in NYC, Bushwick to Flatbush is notoriously slow (meandering buses only), while Flatbush to Chinatown is quite fast (direct trains over the Manhattan bridge). Despite that, no matter where I click, I only see same twitching map, not a map twitching in a way that would reflect the travel time from the point I click.
(I ignore the idea of traveling by car in thickly populated areas of Manhattan and Brooklyn; it only makes sense if you value your personal space way more than you value both your money and time, and don't have to park.)
Re: Spacetime maps: A map that warps to show travel time
#24I don't exactly understand how it works. E.g. in NYC, Bushwick to Flatbush is notoriously slow (meandering buses only), while Flatbush to Chinatown is quite fast (direct trains over the Manhattan bridge). Despite that, no matter where I click, I only see same twitching map, not a map twitching in a way that would reflect the travel time from the point I click. (I ignore the idea of traveling by car in thickly populat…
I too was confuse initially. The map doesn't care where you click. Clicking just toggles to the time based map. In that map, physical distance between any two points represents the time to get between those two points.
Whether it accurately does that, as in your Bushwick Flatbush example, I don't know.
Re: Spacetime maps: A map that warps to show travel time
#25NYC seems like bad default example. I had to check other cities to "get" what's this site about. With NYC - everywhere is similarly far.
I was impressed by how efficient both metro and car metrics are.
Re: Spacetime maps: A map that warps to show travel time
#26Reminded me of MIT's game "A Slower Speed of Light"
Re: Spacetime maps: A map that warps to show travel time
#27I'm not sure I properly understand what these maps are visualizing. I'd have expected the London public-transport map to heavily compress adjacent tube stations and expand tube "dead-zones" but this doesn't appear to be the case. It can take me 10 minutes to get to central but 60 mins to get somewhere equidistant in z2 or z3.
Re: Spacetime maps: A map that warps to show travel time
#28I don't exactly understand how it works. E.g. in NYC, Bushwick to Flatbush is notoriously slow (meandering buses only), while Flatbush to Chinatown is quite fast (direct trains over the Manhattan bridge). Despite that, no matter where I click, I only see same twitching map, not a map twitching in a way that would reflect the travel time from the point I click. (I ignore the idea of traveling by car in thickly populat…
If you turn on "Focus on hover" in the settings, then it matters where you tap (on mobile).
Re: Spacetime maps: A map that warps to show travel time
#29Does anybody have any recommendations on self-hosted ways to create isochrone maps? I've been looking at OpenRouteService, Valhalla, and OpenTripPlanner, but I'm finding it difficult to compare them. Don't seem to be many "experience reports" online.
- https://github.com/GIScience/openrouteservice
Re: Spacetime maps: A map that warps to show travel time
#30I don't exactly understand how it works. E.g. in NYC, Bushwick to Flatbush is notoriously slow (meandering buses only), while Flatbush to Chinatown is quite fast (direct trains over the Manhattan bridge). Despite that, no matter where I click, I only see same twitching map, not a map twitching in a way that would reflect the travel time from the point I click. (I ignore the idea of traveling by car in thickly populat…
If you turn on "Focus on hover" in the settings, then it matters where you tap (on mobile).
Indeed, this helps, thanks! Also there's a switch between car and public transport.
The thing remains weird nevertheless. I'd assume that if you click a point at this mode, the point stays put, because the time from this point to this point remains zero and does not change. But the map twitches so that the point under cursor / tap moves away. I suspect that the map shows some other kind of approximation, not the time to the point clicked. Likely the grid that defines effective times is somehow sparse, and approximating the distortion well when a click hits rather away from a node is hard. But that would still be weird, because I suppose that points like airports and train terminals should definitely be major nodes of that grid.