Pneumatic cables

[wakimani]

Pneumatic cables on highways are flexible rubber tubes stretched across the road, used by traffic engineers for temporary traffic monitoring, counting vehicles, calculating speed, and classifying vehicle types (cars vs. trucks) by detecting pressure changes as tires roll over them. These tubes connect to a data logger that records the air pressure pulses, providing data for planning, safety analysis, and traffic management, and are a cost-effective, easy-to-install solution for short-term studies

 

[Eng'iti]

View attachment 111590
Pneumatic cables on highways are flexible rubber tubes stretched across the road, used by traffic engineers for temporary traffic monitoring, counting vehicles, calculating speed, and classifying vehicle types (cars vs. trucks) by detecting pressure changes as tires roll over them. These tubes connect to a data logger that records the air pressure pulses, providing data for planning, safety analysis, and traffic management, and are a cost-effective, easy-to-install solution for short-term studies

Nilikua nathani zilikua za kuhesabia ma gari tu kumbe there is more, quite informative.