1. B

On a doctor`s vehicle responding to an emergency

 

2. A

Flashing amber is seen on a pelican crossing

 

3. A

Blue lights are on a bomb disposal vehicle

 

4. C

Amber studs are on right lane, close to the central reservation

 

5. D

Tourist signs are brown with white lettering

 

6. B

Red studs are between hard shoulder and left lane