Easy-R5
Transit accessibility analysis with the Conveyal R5 routing engine.
Runs the Conveyal R5 routing engine (v7.6, MIT) as a child process to
compute one-to-many and many-to-many travel-time matrices,
cumulative-opportunity accessibility and travel-time isochrones over a
departure-time window, returning styled QGIS layers. R5 and a Temurin 21 JDK
are downloaded on first setup — no R, no Docker, no administrator rights.
The two population algorithms need openpyxl; its pure-Python wheel is fetched
from PyPI (SHA-256 verified, no pip) on first load and every other algorithm
runs without it.
Setup: DownloadR5 (Temurin 21 JDK + r5-v7.6-all.jar, SHA-256 verified),
DownloadRealizedGtfs (archival / realized feeds from GISBoost's
gtfs-dashboard index), BuildNetwork (cached network.dat + network.json with
per-date active trip counts). Diagnostics: TestR5Setup, CheckTransitData.
Analysis: RunTravelTimeMatrix, RunAccessibility, RunServiceMinutes,
RunCompetitiveAccessibility (2SFCA), SummarizeAccessibilityEquity,
GenerateIsochrones, PreparePopulationLayer, PopulationOverlay. Scenarios:
BuildScenario (new lines, removed / re-timed routes, applied by R5 in
memory), CompareScenarios.