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Eyusd OP t1_j9fpcv5 wrote

A bit of context :

This was done using Python. The algorithm works by asking Google Maps what is the fastest route using public transports from any point to Notre-Dame, on 02/20/2023 at 4PM.

Changes from a subway line to another are allowed, as well as walking or taking the bus.

EDIT : Also, Notre-Dame as been chosen because it is roughtly at the center of Paris, and the starting point of all distance measurements in France

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smauryholmes t1_j9fy8sc wrote

Mind sharing your code? I’ve been using a paid service to do this at my job and would rather do it for free haha.

I assume you need Maps API access?

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Eyusd OP t1_j9g3sus wrote

I didn't want to spend money on that, so I just used Selenium to simulate what a real user may do.

This whole code is just a big bodge. I just control the web browser with the script, and instruct it to type into the search input coordinates, and scrap the page to retrieve the times.

If you'd like a better way to do this with an API, reach to me in DMs, I'd be happy to help

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liotier t1_j9gy1q6 wrote

Choosing Notre-Dame as center is strange, as the nexus of the Paris transportation network is Les Halles, just a neighborhood away.

Notre-Dame is point zero of the French geodetic network and of the French road network - but that is not relevant to a mass transportation isochrone.

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B33Man88 t1_j9fopu3 wrote

Now do the map if you’re a fire

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chew_stale_gum t1_j9ftca4 wrote

This is cool. Would you open source the code to do this?

I hope to do something similar and look at changes during rush hours and arbitrary destinations. To better understand the variance in commute time throughout the day.

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Eyusd OP t1_j9g399t wrote

Unfortunately, I think my code won't help you that much. As I dont have access to any maps API, I basically just used Selenium to simulate inputs as a real user would do. This is time consuming because the whole page has to render, for nothing.

If you don't mind spending a few bucks on a Google Developer account, you may have an easier time achieving your goal using their API.

I'd be happy to help if you need.

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bunnnythor t1_j9gs96p wrote

So some places are so close they are blue-shifted and some are so distant they are red-shifted? Just how big is Paris anyway?

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PmMeYourBestComment t1_j9fsty7 wrote

Paris is a whole lot bigger than this.

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joaomsneto t1_j9g028g wrote

If you count Metro area of Paris, right? The administrative region of Paris is exactly this size.

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tommytornado t1_j9gy4v5 wrote

The dotted line in the diagram marks the boundary of Paris.

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