Auxiliary traffic signs road traffic signs

A total of five kinds of auxiliary flag is attached to the main road traffic signs, the role of flags from help, this flag can not set up a separate and use. Auxiliary flag is divided according to their use represents time, which means that the types of vehicles, which means that regional distance, which means that the ban on the grounds of the auxiliary warnings and signs and auxiliary signs a combination of several. Its shape is rectangular, and its color is white, black, black border. In addition, there is a variable traffic message traffic warning sign, it detects situations (such as lane construction, changes blocked traffic flows, weather conditions, etc.) according to the road, put some sort of timely information is displayed, communicated to the vehicle driver and pedestrians.

road traffic signs set position

Warning signs cardboard traffic signs calculate the position and speed of road traffic related. In the rural mountain road, the general should be set at 20 to 50 meters from the hazardous location areas. Ban flag should normally be set in the need to restrict or prohibit the place, except no parking signs should be arranged in pairs at both ends of the outer limit or ban from the end sections and bridges.

Types of traffic signs and reflective materials properties

road traffic and safety signs A reflective material for the sign face can be divided according to the different structure of the lens mount type, sealed capsule, micro-prismatic and other varieties. Its reflective principle is: the light should be directed to sign the anti-back surface light source in the opposite direction of the incident light. Since the flag and vehicle driving conditions are different, traffic signal baton for the reflective material logo side should have an excellent and wide-angle retroreflective performance. In a different incident angle (the angle between the light and the headlamp symbol between surface normal), different viewing angle (headlamp light and mark the angle of light reflected back between the driver's eyes) the conditions, with inverse reflectance values to mark the surface of reflective sheeting shall comply with JT / T279's.

road traffic and safety signs

In 1968, the United Nations announced the "road traffic and safety signs, signals agreement" as a basis for countries to develop a traffic sign. Since then, traffic signs gradually developed countries to unify in the direction of the international classification, shape, color, pattern and so on. With the popularization and development of road motor vehicles, more and more countries and governments aware of the important role of traffic signs and markings, in some developed countries to lead and promote the use of these simple traffic control facilities to achieve the traffic safety and management technology continues to improve. Meanwhile, in the efforts to promote the European Union, United Nations and other international organizations, more and more countries joined the international road traffic signs, signals Unity Movement, trying to achieve the international transport facilities, to try new things.

The history of traffic signs

Early in Chinese Zhou Dynasty, has "column in Table Tree Road" records. In Roman times, with a milestone and a signpost from Rome to Capua the military road. But most people think that the origin of modern road traffic signs, should be traced back to December 1879 in the United Kingdom - to participate in local organizations Prosecco Cycling Union Ringer club, on the road leading to the mountains sets a dangerous trailer traffic signs : "to Seck Lister - the dangerous hill." The paint on the iron plate written notice signs become ever earliest written records of road traffic signs. The first set of reflective traffic signs on the road administrative department, the British Gloucestershire UK British Council Stern marsh road.