Road is a special product that is used by vehicles and pedestrians. Unlike other products, different road sections and nodes have different rules and requirements. Road traffic markings and other facilities express these rules and requirements." "Language" is the "product instruction manual" that guarantees the safe, correct and efficient use of roads. Therefore, the design of traffic markings should strictly follow the traffic design, and the design should be matched with other facilities, adopt the correct marking form, and select the appropriate Marking materials, controlling construction quality and doing a good job in the maintenance of markings are important measures to improve the level of road facilities in my country and promote the development of transportation.
The form of road markings includes the plane, elevation shape, color, size, thickness, etc. of the markings. Generally, markings should be designed in strict accordance with the requirements in the specification, but for markings without a fixed shape, such as diversion lines, they should be designed according to The driving trajectory of the vehicle should be determined, and the driving conditions of the vehicle should be fully considered when determining the driving trajectory of the vehicle. For example, when turning right, the speed of the vehicle should be controlled as low as possible to facilitate traffic safety, and the high speed should be used as far as possible to improve the traffic efficiency of the intersection. . For urban roads, due to the peculiarities of traffic operation, the design form of traffic markings should also consider its peculiarities in addition to meeting general regulations:
(1) The marking size of traffic markings. Due to the large line of sight interference on urban roads, the ground marks are too small or unclear, which is not conducive to the recognition of the marks. For example, guide arrows, ground marks, etc. should be set according to the specifications. If the size of the mark is selected according to the speed of the vehicle, it is recommended to increase by one. File for allocation.
(2) The color and reflective performance of traffic markings. The color and reflective performance of the markings should be determined according to the night lighting conditions of the road. For road sections with better lighting conditions, it is not necessary to emphasize the reflective performance, but should improve its recognizability and anti-fouling performance.
(3) The thickness of traffic markings. The maintenance cycle of urban roads is longer than that of highways. Therefore, special requirements should be put forward for the durability of traffic markings. In addition to material properties, thicker markings have longer wear time and better durability. Therefore, urban road markings should be adopted with longer durability. Thick construction thickness. ,
The morphological design of traffic markings plays an important role in how much the traffic markings can play in the traffic flow. The morphological design of traffic markings is an important measure to improve the level of road facilities in my country and promote the development of transportation.