What is a command sign? Meaning of using command signs

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1. What is a command sign?

A command sign is a sign that tells traffic participants what they must comply with.


2. Meaning of using command signs

Command signs have codes R and R.E with the names as follows:

– License plate R.122: Stop;

– License plate R.301 (a,b,c,d,e,f,g,h): Direction to follow;

– License plate R.302 (a, b, c): Direction must go around obstacles;

– License plate R.303: Intersection along the roundabout;

– License plate R.304: Road for non-motorized vehicles;

– License plate R.305: Pedestrian road;

– License plate R.306: Minimum allowed speed;

– License plate R.307: End of minimum speed;

– License plate number R.308 (a,b): Route crossed by the overpass;

– License plate R.309: Press the horn;

– License plate R.310 (a,b,c): Directions must be followed for vehicles carrying dangerous goods;

– License plate R.403a: Road for cars;

– License plate R.403b: Road for cars and motorbikes;

– License plate R.403c: Road for buses;

– License plate R.403d: Road for cars;

– License plate R.403e: Road for motorbikes;

– License plate R.403f: Road for motorbikes and bicycles;

– License plate R.404a: End of road for cars;

– License plate R.404b: End of road for cars and motorbikes;

– License plate R.404c: End of bus route;

– License plate R.404d: End of road for cars;

– License plate R.404e: End of road for motorbikes;

– License plate R.404f: End of road for motorbikes and bicycles;

– License plate R.411: Directions on each lane must be followed;

– License plate R.412a: Lane for passenger cars;

– License plate R.412b: Lane for cars;

– License plate R.412c: Lane for trucks;

– License plate R.412d: Lane for motorbikes;

– License plate R.412e: Bus lane;

– License plate R.412f: Lane for cars;

– License plate R.412g: Lane for motorbikes and bicycles;

– License plate R.412h: Bicycle lane;

– License plate R.412i: End of lane for passenger cars;

– License plate R.412j: End of lane for cars;

– License plate R.412k: End of lane for trucks;

– License plate R.412l: End of lane for motorbikes;

– License plate R.412m: End of bus lane;

– License plate R.412n: End of lane for cars;

– License plate R.412o: End of lane for motorbikes and bicycles;

– License plate R.412p: End of bicycle lane;

– License plate R.415: Sign combining lanes by vehicle;

– License plate R.420: Start of densely populated area;

– License plate R.421: End of densely populated area;

– License plate R.E,9a: Parking prohibited in the area;

– License plate R.E,9b: Prohibition of hourly parking in the area;

– License plate R.E,9c: Parking area;

– License plate R.E,9d: Maximum speed in the area;

– License plate R.E,10a: No parking ban in the area;

– License plate R.E,10b: Hourly parking ban in the area ends;

– License plate R.E,10c: End of parking area;

– License plate R.E,10d: Maximum speed limit in the area;

– License plate R.E,11a: Tunnel;

– License plate R.E,11b: End of tunnel.

The meaning of use of each type of sign is explained in detail in Appendix D National Technical Regulation QCVN 41:2019/BGTVT on Road Signs.

illustration. What is a command sign? Meaning of using command signs

3. Size, shape and color of command signs

Command signs are mainly circular, blue rectangular, and white. When the command ends, usually use a red diagonal line drawn from top to bottom and from right to left over the white image.

The specific dimensions of drawings on signs are detailed in Articles 16, 17 and Appendix D of the National Technical Regulation QCVN 41:2019/BGTVT on Road Signs.


4. Location of command signs according to travel direction and effectiveness of the signs

– Command signs must be placed at the location where the command signal is needed. Due to difficult conditions, if placed further away, it must be accompanied by auxiliary plate number S.502.

– Command signs take effect from the location of the sign. As for license plate R.301a, if placed behind the next intersection, the sign’s validity will be from the location of the sign to the next intersection. Plates R.301 (a,b,c,d,e,f,g,h), R.302(a,b,c), R.411, R.412 (a,b,c,d, e, f, g, h) and sign R.415 do not prohibit vehicles from turning right or left to exit or enter the gate of a house or lane, corner, alley or entrance to an agency or unit on the road where the sign is valid. .

– If the road section requires signs to pass through intersections (except for intersections with alleys, alleys, or entrances to offices or units; or neighboring land where vehicles can only enter and exit the area). land with a common path), the command sign must be repeated and placed behind the intersection in the direction of the road where the command sign is located, except for signs R.420, R.421, command signs that are effective in the area and cases with separate regulations.

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