(≤Euro 4) since January 2019 [12,13])—might become the new status quo 500 100% 75% 400 1990 50% 300 2014 25% 0% 200 2030 100 Urban region Rural region 0 Car/truck (driver) Car (passenger) Motorcycle/moped On foot Bicycle Taxi Long-distance public transport Public transport (a) ...