A fee for using a road or bridge
toll
Environmentally friendly, able to continue long-term
sustainable
Sharing a car ride with others to reduce traffic
carpool
The basic physical systems (roads, bridges, etc.)
infrastructure
Legal permission to drive a vehicle
license
Overcrowding, especially of traffic
congestion
The money you pay for a journey on public transport
fare
A machine used for transport (car, truck, etc.)
vehicles
On time
punctual
When transport is late or postponed
delay
A schedule for transport services
schedule
A person walking rather than using a vehicle
pedestrians
Complete traffic jam where nothing can move
gridlock
Pollutants released into the air (usually from vehicles)
emission
Regular travel between home and school
commute