Changeable confluence area marking line of expressway ramp confluence area and setting method thereof

Abstract

The invention discloses a changeable confluence area marking line of an expressway ramp confluence area and a setting method thereof. An LED changeable marking line arranged on the boundary portion ofan acceleration lane and the outermost side lane of a main line in the confluence area is utilized, according to flow and speed combinations of different traffic flows of the main line and ramp traffic, the length of the lane line which cannot be crossed in the same direction can be dynamically adjusted, therefore it is ensured as far as possible that vehicles in the ramp can avoid the areas which are not suitable for confluence, the speed difference between traffic flow of the main line and the vehicles needing to converge in the ramp is reduced, and the safety of the confluence area is improved; in addition, according to the length required by vehicles in the confluence area speeding up to the lowest converging speed and the length required by the vehicle converging process, the lengthof the solid white line which cannot be crossed theoretically is determined, that is, the total length of the solid line composed of a white line and an LED lamp set is determined, working combinations of LED lamp set displaying units and the white line are flexibly matched, so that the marking line adapts to highway types of different structures, the flexibility is better, and the application range is wider.

Description

[0001] Field [0002] The invention belongs to the field of traffic control facilities, and in particular relates to a variable merging marking in a ramp merging area of ​​an expressway and a setting method thereof. Background technique [0003] Since the reform and opening up, the rapid increase in the scale of expressways has greatly supported the rapid development of China's economy, but the traffic safety situation of expressways is not optimistic. The highway ramp merge area mainly includes two types: the connecting part of the ordinary road and the expressway and the connecting part of the expressway interchange. The merging behavior of vehicles in this area has a great impact on the safe operation of traffic. Acceleration, deceleration, lane change and other behaviors of the vehicle in this area may easily cause the driver to make mistakes in judgment and operation, thus leading to traffic accidents. [0004] In the domestic regulations on traffic markings, there is no...

AI Technical Summary

Problems solved by technology

Since the acceleration lane and the outermost lane of the main line are all white dotted lines that can be crossed, the choice of the merging point for ramp vehicles depends entirely on the driver's own judgment. Vehicles entering from the ramp often merge in advance under the condition of insufficient acceleration. The main line, so that the speed difference between the ramp vehicle and the main line vehicle is too large, and then cause traffic accidents

At the same time, when the speed and traffic volume of the traffic flow change, the lengths that the ramp vehicles need to travel to merge into the main line are also different. This sets up a lot of obstacles for the reasonable arrangement of the expressway ramp merge, and it is impossible to merge on all expressways. Districts use the same model and type of confluence markings, which adds a lot of difficulty to the rational layout of traffic facility control areas

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