Traffic

1. Traffic problem

1.1. Traffic jam

1.2. Accident

1.3. Pollution

1.4. Noise

1.5. Crowded

2. Traffic Rules

2.1. Wear a helmet

2.2. Fasten your seatbelt

2.3. Obey traffic lights

2.4. Stop at the red light

2.5. Go on the green light

2.6. Use the crosswalk

2.7. Don't speed

3. Verbs

3.1. Drive

3.2. Ride

3.3. Walk

3.4. Cross

3.5. Stop

3.6. Wait

3.7. Park

4. ADJ

4.1. Safe

4.2. Dangerous

4.3. Convenient

4.4. Fast

4.5. Slow

4.6. Crowded

4.7. Quiet

5. Road vehicles

5.1. Car

5.2. Bus

5.3. Bicycle

5.4. Motorbike

5.5. Truck

6. Rail Vehicles

6.1. Train

6.2. Tram

7. Water vehicles

7.1. Boat

7.2. Ship

8. Air Vehicles

8.1. Plane

8.2. Helicopter

9. Traffic infrastructure

9.1. Road

9.2. Street

9.3. Highway

9.4. Traffic light

9.5. Crosswalk

9.6. Bridge

9.7. Tunnel

9.8. Bus stop

9.9. Railway station