When the vehicle ahead does not move on a green light

At an urban junction, do not use the horn to urge a driver to move when the light turns green. This use of the horn is prohibited in built-up areas and can increase tension and confusion. Wait without attempting a dangerous overtake or improvised U-turn. If the driver appears to need help, assistance may be offered only when genuinely necessary and without creating a new danger. Do not abandon your vehicle in the lane to search for a traffic officer.