🏙️ A City Grows in 100 Years: Urban Evolution, Density, Traffic and Energy Lab

Scrub a year slider from 0 to 100 over a fictional river valley that grows from farmland into a city of towers: logistic population, Clark's law density, gravity-model traffic with BPR congestion, rooftop solar and CO2, with five scenarios. Speculative visualisation, not a forecast.

3D · Three.js / WebGL renderer · 60 FPS target · runs fully client-side, no install