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PT routing #4

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2 of 15 tasks
dabreegster opened this issue May 25, 2024 · 0 comments
Open
2 of 15 tasks

PT routing #4

dabreegster opened this issue May 25, 2024 · 0 comments

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@dabreegster
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dabreegster commented May 25, 2024 •
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Walking + PT has been started in this repo. Just starting a list of improvements.

UI

A-to-B routing

  • Configurable start time
  • Display text route directions nicer. "Walk 5 minutes", "wait 4 minutes", plumb info about the route taken
  • Correctness -- only ever 1 stop per trip? Impossible
  • Use route shapes for display (and see how much space they need)
  • Get more precise about linking walking and transit steps

Isochrone

  • Implement it

Data model

  • Decide requirements for days of the week, service exceptions, etc
  • Think through serveless-friendly ways of getting GTFS data

Performance

  • Can an A*-like heuristic help for PT routing? Edit: yes, but it loses optimality
  • Get base file size down, without GTFS. London is 370MB, but the PFB is 90MB
  • Smaller GTFS data. London is around 300MB right now
  • More compact NaiveTimes?

Refactoring
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