What kind of symbol of rod conveyor applicable

Traffic signs rod conveyor is marking device on the door frame, the height of the edge of sign off the ground should be greater than the way of headroom. Traffic signs rod conveyor is applicable to the following situation: 1. Many car journey way ( To the above three lanes) Demand indicates separation

 traffic sign pole 【 conveyor Traffic sign pole also known as the road sign pole, pole, road signs used to indicate the traffic line on both sides of the road and pillar, traffic sign pole is made by steel tube processing molding, surface treated with hot dip galvanized. 】 Device on the door frame is signs, signs along the height of the ground rules should be greater than the journey headroom. Traffic signs rod conveyor is applicable to the following situation: 1. Many car journey way ( To the above three lanes) Demand indicate a lane to separation; 2. Traffic volume is larger, the outside lane large vehicles blocking the inside lane small vehicle vision; 3. Traffic at high speed under the mixed, shunt and river sections, such as: interoperable build interchanges between close to sign a secret place setting, highway and highway intersection interchange interchange mainline in areas such as; 4. Limited space, column type, cantilever type device with difficulty; 5. Exit ramp 【 Exit ramp bear the ramp ends and ramp speed between circular curve radius of the transition function. 】 In driving on the left side of the reaction of 6. On the landscape. The above content from manufacturers of new energy, the antenna reproduced please indicate.