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codeforpdx / opentransit-metrics

Prototype of public transit data visualization system
https://opentransit-pdx.herokuapp.com/
MIT License
7 stars 8 forks source link

analysis - create map summarizing isochrone results #26

Open sidetrackedmind opened 2 years ago

sidetrackedmind commented 2 years ago

Goal

Imagine placing the pin everywhere in Portland and calculating the coverage area of a certain travel time band. For instance, in the picture below:

image
Imagine calculating the total area of the blob up to the pink 40-45 minute gradient. Then do this for a bunch of points around the city and come up with a table like this: place_id lat lon coverage area (sq mi)
A XX.XX XX.XX XXX.X
B XX.XX XX.XX XXX.X

Then use the above table to visualize transit access "deserts" around the city.