Traffic lights installed on the aspect ratio has a regulation?

In our daily life, everywhere can see the traffic lights, the use of it can effectively reduce traffic, ensure smooth road traffic. However, the use of the traffic light was not so brief, because it is either in the gauge

 in our daily life, everywhere can see the traffic lights, it can effectively reduce the traffic, the use of to ensure smooth passage of the road. However, the use of the traffic light was not so brief, because it is in both planning and device, all need to follow certain requirements. Traffic light device with high requirement? The answer is: yes! Transportation device height requirements, as follows: (1) crossing signal lamp: height should not be less than 3 m. Second, the pedestrian signal lights' Pedestrian signal lights, is a kind of convenient pedestrian use traffic lights. 】 : plant height is 2 m to 2. 5m。 Three, driveway lights: 1, the device level 5. 5 m to 7 m; 2, the device on the intersection of body, shall not be lower than the bridge is clear. Four, non-motor vehicle driveways lights: 1, the plant height is 2. 5 m to 3 m, motor vehicle traffic signal lamp post choose the borrow guidance cantilever device non-motor vehicles lights 【 Light is a constant current power supply of vehicles on the motor vehicle lamp. 】 Should be consistent with cases, 7. 4. 2 requirements; 2, non-motor vehicles, light cantilever length shall ensure a non-motor vehicle lights located above the non-motor vehicle lanes. Five, vehicle lights, direction indicator lights, warning lights and light crossing signal: 1, when choosing cantilever device, level 5. 5 m to 7 m; 2, when choosing pillar type device, height should not be less than 3 m; 3, the device on the intersection of body, shall not be lower than the bridge is clear; 4, the cantilever length of the longest should not surpass the inside lane center, the shortest is not less than the most outer lane center. The above content from mark pole huasheng new energy, reproduced please indicate.