Home▸Energy & Thermodynamics▸Travel Energy Intensity Comparator

Travel Energy Intensity Comparator

Interactive 3D comparator: see how much energy a trip really costs per passenger for a short-haul flight, solo car, carpool, coach bus and electric train, and how load factor and grid mix change the CO2 bill.

Energy & Thermodynamics3DEasy60 FPS📱 Mobile-adapted⇄ 2D version

Every trip has an energy bill, but that bill is almost never per-vehicle — it's per-seat-filled. This simulator lines up five common ways to cover the same distance — a short-haul flight, a solo car, a carpooled car, a coach bus and an electric train — as 3D bars whose height tracks real published energy intensity in megajoules per passenger-kilometre. Move the load-factor slider and watch the bars for shared vehicles (plane, bus, train, carpool) fall as more seats fill, while the solo car never budges. A separate grid renewable-share slider shows how the same electric train's CO2 footprint swings with what's actually powering the grid, independent of how much energy it used.

⚙ Under the hood

Compare real energy-intensity data for a short-haul flight, solo car, carpool, coach bus and electric train as animated 3D bars, and see how load factor and grid renewable share change the per-passenger energy and CO2 bill of the same trip.

energytransportsustainabilityCO2travelefficiency

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