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Highway Bureau, MOTC
The Highway Bureau is committed to provincial highway engineering, highway transportation management and highway supervision, simplifying administration and facilitating the people. The business scope is divided into three categories: road engineering, road transportation and road supervision, providing convenient and safe services for the public.

High-Low Detector testing is a method used to evaluate the smoothness of a pavement surface. It evolved from the 3-meter straightedge test.

High-Low Detector.pngHigh-Low Detector