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Spacetime maps: A map that warps to show travel time

maps.vvolhejn.com

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Re: Spacetime maps: A map that warps to show travel time

#11
post #9

Earlier quoted context omitted.

And the fact that the distortion is preset and not based on where you click. This is one of those things using heat maps where the clustering is clearly large population centers. Not really as helpful/useful as people think they are

Why would where you click matter? Two points are always the same time apart from each other regardless of reference to any third point.

because warping of spacetime is relative

Re: Spacetime maps: A map that warps to show travel time

#12
post #9
post #4

TBH kind of disappointed by how little it distorts, especially for cities with stereotypically difficult travel times by car like LA. almost loos like random distortions as opposed to something to pattern match. Really the only thing noticeable is bodies of water distort the map the most (which explains why LA doesn't get that distorted). Would be kind of nice for when i click the point that all the points distort ba…

And the fact that the distortion is preset and not based on where you click. This is one of those things using heat maps where the clustering is clearly large population centers. Not really as helpful/useful as people think they are

Toggle on "Focus on hover".

Re: Spacetime maps: A map that warps to show travel time

#13

Earlier quoted context omitted.

Why would where you click matter? Two points are always the same time apart from each other regardless of reference to any third point.

because warping of spacetime is relative

If the analogy to warped spacetime was exact, then there would be a “scale factor” for every point depending on the local transit speed. Then it would be possible to do as this page does and for the answer not to depend on starting point.

However in the real city the transit speed at any point is not isotropic, the space is 3-D, and some paths are forbidden (getting on-off the train between stops).

Re: Spacetime maps: A map that warps to show travel time

#14

Earlier quoted context omitted.

because warping of spacetime is relative

If the analogy to warped spacetime was exact, then there would be a “scale factor” for every point depending on the local transit speed. Then it would be possible to do as this page does and for the answer not to depend on starting point. However in the real city the transit speed at any point is not isotropic, the space is 3-D, and some paths are forbidden (getting on-off the train between stops).

if you want to use spacetime in the title...

Re: Spacetime maps: A map that warps to show travel time

#16
Like the idea - lived in LA my whole life and it wasn’t until the start of covid, when I was able to commute across huge swaths of the city in the order of dozens of minutes rather than hours, did I realize how distorted my view of its physical size was - in places like LA, when asked how far something is, an angelino will almost always respond in a measurement of time rather than distance.

Re: Spacetime maps: A map that warps to show travel time

#17

Like the idea - lived in LA my whole life and it wasn’t until the start of covid, when I was able to commute across huge swaths of the city in the order of dozens of minutes rather than hours, did I realize how distorted my view of its physical size was - in places like LA, when asked how far something is, an angelino will almost always respond in a measurement of time rather than distance.

haha, I had the same realization after I moved from San Diego. Nobody in Albuquerque wanted to hear "20 minutes" when asking "How far is X?"

Re: Spacetime maps: A map that warps to show travel time

#18

Like the idea - lived in LA my whole life and it wasn’t until the start of covid, when I was able to commute across huge swaths of the city in the order of dozens of minutes rather than hours, did I realize how distorted my view of its physical size was - in places like LA, when asked how far something is, an angelino will almost always respond in a measurement of time rather than distance.

haha, I had the same realization after I moved from San Diego. Nobody in Albuquerque wanted to hear "20 minutes" when asking "How far is X?"

Somehow in San Diego everything is 25 minutes from everything else

Re: Spacetime maps: A map that warps to show travel time

#19

Like the idea - lived in LA my whole life and it wasn’t until the start of covid, when I was able to commute across huge swaths of the city in the order of dozens of minutes rather than hours, did I realize how distorted my view of its physical size was - in places like LA, when asked how far something is, an angelino will almost always respond in a measurement of time rather than distance.

In the New York City area time is the measure of distance. I think that's the same in every large Metro area.

Re: Spacetime maps: A map that warps to show travel time

#20
post #19

Like the idea - lived in LA my whole life and it wasn’t until the start of covid, when I was able to commute across huge swaths of the city in the order of dozens of minutes rather than hours, did I realize how distorted my view of its physical size was - in places like LA, when asked how far something is, an angelino will almost always respond in a measurement of time rather than distance.

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 kind of like predicting the weather, depending on what part you live in.
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