Traffic signal installation height requirements are as follows:
A, grade crossing signals:
Height should not be less than 3M.
B, pedestrian crossing signals:
Installation is 2m to 2.5M.
C, lane signals:
1, the installation of highly 5.5M to 7m;
2, when it is installed on overpasses, shall not be less than the bridge clearance.
D, non-motorway traffic lights:
1, the installation height is between 2.5M and 3M, in borrowing guide motor traffic signal poles cantilever-mounted bicycle lights case shall conform to 7.4.2 requirements;
2 length of the cantilever, non-motor vehicle lights should be guaranteed over the non-motor vehicle lights located at the motorway.
E, vehicle lights, directional lights, flashing warning lights and crossing signals:
1, the use of cantilever installation, 5.5M to 7m;
2, using column installation, should be not less than 3M;
3, when it is installed on overpasses, shall not be less than the bridge clearance;
4, cantilever length should not exceed the innermost lane Centre, short of not less than the outermost lane Center.