Click map to add corridor nodes (crosshair). Click a segment to select it, drag bends to reshape. Toggle each segment On road / Freehand. Finish with the button below.
Catchment method
API calls this session: 0
Population & employment
No employment layer loaded.
Density display
Population
<150 · rural / very low
150–1,500 · suburban
1,500–4,000 · urban
4,000–7,000 · dense urban
7,000–15,000 · high-density
15,000+ · very high / core
empty land / water
Employment
Shading from uploaded employment layer only (no employment raster).
<100 · very low
100–1,000 · low
1,000–3,000 · moderate
3,000–7,000 · high
7,000–15,000 · very high
15,000+ · employment core
Density bands are indicative standard urban brackets (persons or jobs per km²), not research-calibrated figures.
Download
Data sources. Buffers: geodesic circles (Turf), approximate over long distances. Population fallback: WorldPop API (2020). Employment: uploaded/generated only — never illustrative. WorldPop slice: pixel values sampled server-side over the visible extent (ImageServer getSamples), exported as points — a sampled slice, not a full raster.
Catan H3 Export?
Approx. hex edge — · avg cell area —
Estimated cells: —
loading Pulse…
PopFlux · Heartbeat
Davao — the breathing city
Zones rise with trip intensity per km² and shift blue↔red as trips leave vs arrive. Streaks are flow through the cordons. Davao demo · build 15 (blocks + record)
07:30
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Origin / destination balance
origins · leaving50/50arriving · dest.
Saturates at 75/25 (blue) & 25/75 (red). Cordon streaks spill past the study area; brighter & faster = more traffic.
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PopFlux Gravity
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Project Layers×
Shared store — layers here can be used across tabs and downloaded as GeoPackage with provenance.