How many giant brushes can you fit on the back of a truck? This promo video from Swiss road works company Colas Suisse features their ‘eco-friendly’ tunnel washing truck, a soapless vehicle that uses water pressure and scrubbing to clean tunnel walls and ceilings.
image credit: Colas Suisse
They developed a mechanized harvesting machine based on the medium-sized truck MAN, designed to clean up the dirt and soot accumulated in the tunnels.
image credit: bourguet
The tunnel cleaner allows one half pipe to be washed in one pass. Such a machine certified to European standards did not exist before. Two patents were filed by Colas, the civil engineering company.
The rapidly rotating brushes bend and crane to different angles and heights.These trucks equipped with multiple brushes, built by Vincent Bourguet, sweep the tunnels of Switzerland.
About this truck which is equipped with seven brushes truck known little, but it is known that the car is equipped with sensors that allow in an automatic mode to withstand a certain distance from the walls and has a remote control.