Automatic traffic counts can be undertaken by means of pneumatic
ATC - Pneumatic Tube tubes that measure direction of flow and traffic speed, these counters can also classify vehicles into various groups i.e. cars, buses and heavy goods vehicles.
Automatic Traffic Counters (ATC's) offer a quick, affordable, and reliable way to collect vehicle data over any period and can be presented in a range of formats to suit individual client requirements.
Pneumatic Tube ATC
The MetroCount 5600 Series Roadside Units are used to collect traffic information, it uses two rubber pneumatic tube axle sensors recording classification by axle base separation.