A method for setting road markings in the weaving area of urban expressways
A technology of road marking and weaving area, which is applied in the traffic control system of road vehicles, traffic flow detection, traffic control system, etc., and can solve the problem of limited length of weaving area
Active Publication Date: 2022-01-18
SOUTHEAST UNIV
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Problems solved by technology
Although existing studies have verified that diverging and merging positions have a significant impact on the traffic capacity of the weaving area, there is still insufficient research on how to actively control the diverging and merging positions to improve the traffic capacity of the weaving area
Although the use of road markings to guide diverging and merging vehicles to change lanes can reduce the weaving behavior, considering the limited length of the weaving area, whether this type of marking design can improve the traffic capacity of the weaving area under different traffic needs needs to be further verified
Method used
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Embodiment
[0055] The performance of the present invention in evaluating the operating efficiency of the weaving area is tested by using the measured data of seven expressway weaving areas in Nanjing, China.
[0056] according to figure 1 The flow chart of the method is shown, and the traffic flow video data of 14 peak hour periods (07:00-09:00 in the morning and 17:00-19:00 in the evening) in seven weaving areas were taken to obtain the required various The traffic flow ratio is shown in Table 1, and the road geometry design variables of the seven weaving areas are measured on the spot, such as figure 2 and shown in Table 2.
[0057] Table 1 Road geometric characteristics of seven expressway weaving areas
[0058] Numbering Interleave vs. VR Split ratio R d
Confluence ratio R m
1 0.833 0.726 0.940 2 0.891 0.851 0.930 3 0.812 0.741 0.882 4 0.938 0.886 0.989 5 0.874 0.780 0.968 6 0.894 0.803 0.984 7 0.828 0.729 0....
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The invention discloses a method for setting road markings in the weaving area of urban expressways. The method takes the weaving area of urban expressways as the research object, and uses the simulation model of cellular automata to analyze two ways of setting road markings under different traffic demands. The impact on traffic operation efficiency in the weaving area. One of the road markings uses a combination of white solid lines and dotted lines to separate diverging and merging traffic, guiding diverging to occur upstream of the weaving area, and merging to occur downstream of the weaving area; the other road marking allows diverging and merging to occur in the weaving anywhere within the region. The simulation model can provide a detailed and effective evaluation method for the setting of two road markings in the weaving area.
Description
technical field [0001] The invention relates to a method for setting road markings in an urban expressway weaving area, and belongs to the fields of urban expressway traffic operation technology and road design. Background technique [0002] With the continuous development of the urban road network, the expressway weaving area has become an important part of the urban expressway system. In the weaving area, high-speed vehicles on express roads and relatively low-speed vehicles on urban roads intersect without the help of traffic control facilities, so there are frequent weaving and lane changing behaviors, which seriously affect the The operating efficiency of traffic flow in the weaving area is the main reason for the frequent congestion of urban expressways. Therefore, in order to reduce the weaving behavior in the weaving area, there is a channelization setting that uses road markings to spatially separate the diverging and merging lane change positions. Specifically, r...
Claims
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IPC IPC(8): G08G1/01G06F30/18
CPCG08G1/0104G06F30/18
Inventor 郭延永赵晶娅刘攀欧阳鹏瑛
Owner SOUTHEAST UNIV