1. The width of the installed lane shall be no less than 4.5 meters, and the length shall be no less than twice the longest length of the measured vehicle. The sun shall not shine on the lane, and there shall be no water on the lane.

2, the ground level, depth flatness is less than 0.1%, width flatness is less than 0.05%. In the total length of 20.5 meters of the ground, or ensure that the ground flatness is less than 4mm.

3, the lane area can not rain into or rain seepage, so as not to make the detection equipment damp and damage;

4. LED dot matrix screen is more than 12 meters away from the measuring width platform;

5, cable trench depth is not < 150mm, width is ≈100mm, measuring the width of the foundation pit length 3.64m, width = 0.5m, depth = 0.25m, PVC pipe diameter 40mm, buried in the ground below 100mm, cable trench 220 volts AC power supply, and by a good grounding line, but also need to have compressed air leading port, The air pressure is 0.7 mpa. At a total length of 20.5 meters;

6. If networking is required, consider the arrangement of network cables.