Which inventor conceptualized a system in the 1920s that sought to measure traffic volume using telephone lines and embedded loops?

Answer

H. G. Thring

H. G. Thring designed a system in the 1920s intended to measure traffic volume by using telephone lines for communication and magnetic induction loops embedded in the road, creating an early form of actuated control.

Which inventor conceptualized a system in the 1920s that sought to measure traffic volume using telephone lines and embedded loops?
inventorintelligencetraffic light