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Izochrony AZO (PSP) QGIS 4 compatibility
QGIS 4 ready Active
Yes — Izochrony AZO (PSP) supports QGIS 4 (declared max version 4.99.0).
Drive-time service areas (isochrones) for fire & rescue units — offline network analysis (Dijkstra + decreasing buffer), no API. (PL: izochrony czasu dotarcia jednostek straży)
About
Adds Processing algorithms for fire & rescue accessibility ("AZO"): time-to-arrival-on-scene zones = turnout/dispatch time (per unit type, e.g. professional 3 min / volunteer 10 min) + driving along roads (speed by road class from an in-dialog table — no network preparation) + off-road approach. Method: graph + Dijkstra (minimum time to the nearest unit) + a DECREASING BUFFER (radius shrinks with the remaining time budget, with a hard R_max), densified along the network and optionally clipped by barriers (rivers, railways, water bodies). Single super-source Dijkstra — fast even at region/province scale, run in a background thread via Processing (responsive GUI, progress bar, cancellation). Also computes a population-coverage indicator on demand points. Fully offline, no API keys — suitable for sensitive emergency-service data. Built around the Polish State Fire Service (PSP) and volunteer units in the national rescue system (OSP-KSRG), but applicable to any region. Indicative/educational material; for official use substitute an authoritative road network (e.g. BDOT10k) and official unit data. PL: izochrony czasu dotarcia jednostek straży (AZO) — analiza sieciowa offline z malejącym buforem (graf + Dijkstra, alarmowanie per typ, bariery, R_max), liczona superźródłem; w pełni offline, bez API. Materiał poglądowy; do celów urzędowych: sieć BDOT10k i dane KW/KP PSP.
| Author | Tomasz Zuchlke |
|---|---|
| Downloads | 404 |
| Latest version | 1.6.2 |
| Last updated | 2026-06-21 (116 days ago) |
| Min QGIS | 3.22.0 |
| Max QGIS | 4.99.0 |
| QGIS 4 ready | Yes |
| Maintenance | Active |
| Category | Network & routing |
| Tags | network, routing, dijkstra, fire, psp, service area, azo, emergency, isochrone |
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Maintenance: Active = updated within 1 year, Quiet = 1–3 years, Likely abandoned = over 3 years.