In this paper, an auto-traffic measuring system is proposed on multiple drive lanes.
It uses ultrasonic sensors and lateral scanning method on real traffic roads.
The proposed method shows easy establishment and maintenance on the various driveway environments.
In addition, it adjustably measures the traffic volumes according to the size arid the number of drive lanes.
The experiment results show that the lateral scanning method easily applies to the real traffic roads and provides low error rate and real-time response.
In intelligent transportation system, it plays an important role for measuring the accurate traffic amount.