
a support vehicle in a ride or race that follows last rider or group on the course; vehicle that picks-up abandoned riders; also voiture balai.
Found on
http://bikecult.com/bikecultbook/glossary_english.html

The broom wagon (not to be confused with a sag wagon) is the name for the vehicle that follows a Cycle Road Race picking up stragglers (or sweeping them up) who are unable to make it to the finish of the race within the time permitted. In the Tour de France the vehicle used was traditionally a Citroën H Van. The expression broom wagon is a transl...
Found on
http://en.wikipedia.org/wiki/Broom_wagon

The vehicle at the back of the race that signals the end of the race caravan and ensures the course is clear for the reopening of closed roads.
Found on
http://www.fcactivetravel.com/news/glossary-road-cycling-terms

The vehicle at the back of the race that signals the end of the race caravan and ensures the course is clear for the reopening of closed roads.
Found on
https://www.encyclo.co.uk/local/22516

The last vehicle in a race caravan that sweeps the course and picks up dropped riders.
Found on
https://www.encyclo.co.uk/local/22521
No exact match found.