give (somebody)/get the all clear - a signal such as a loud whistle that tells you that a dangerous situation has ended, bypass - a road that goes around a town or other busy area rather than through it, crawl - if a vehicle crawls, it moves forward very slowly, debris - the pieces of something that are left after it has been destroyed in an accident, explosion, etc., diversion - a different way that traffic is sent when the usual roads are closed, evacuate - to empty (a place) by making all the people leave, flow freely - if traffic _______s _______, it moves easily from one place to another, hold-up - a situation that stops something from happening or making progress, northbound - travelling or leading towards the direction that is at the top of a map of the world, above the Equator, carriageway - one of the two sides of a motorway or main road, for vehicles travelling in the same direction, power failure - a period of time when there is no electricity supply, replacement bus service - when a form of transport such as a train is temporarily not working and a bus is provided to transport passengers on a similar route, roadblock - a place where the police are stopping traffic, shed its load - if a lorry _______s ____ ______, some or all of the items it is carrying fall off the lorry onto the road, tailback - a line of traffic that is moving very slowly or not moving at all,

Roadmap B2+ unit 5a. Vocabulary. Match the words and the definitions.

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