Trip controls
Fuel or electricity plus wear-and-tear estimate.
—best all-round choice
—cheaper option saves
—faster option saves
—lower-carbon choice saves
Journey comparison
Cost
🚆 Train: —
🚗 Car: —
Time
🚆 Train: —
🚗 Car: —
Carbon
🚆 Train: —
🚗 Car: —
Planner notes
Change the controls to reveal the trade-offs.
Mission 1: Group discount detective
Increase passengers from 1 to 5. At what point does sharing a car become cheaper than train tickets?
Mission 2: Fast train upgrade
Raise train speed to 220 km/h. How much time would high-speed rail save on the same route?
Mission 3: Budget argument
Write a two-sentence recommendation. Include one number about money, one about time, and one about carbon.