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Travel risk control method in high-risk road segment

A risk control and high-risk technology, applied in the traffic control system of road vehicles, traffic control system, arrangement of variable traffic instructions, etc., can solve the problem of missing high-risk road sections, poor pertinence, and deteriorating traffic safety of high-risk road sections conditions and other issues, to achieve the effect of ensuring driving safety, facilitating management, and saving funds

Active Publication Date: 2020-01-10
CHANGAN UNIV
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Problems solved by technology

[0002] The identification methods for high-risk road sections in the prior art are all based on historical traffic accident data. The severity of traffic accidents on different types of high-risk road sections is different, so the casualties caused by traffic accidents must also be considered. In order to more comprehensively identify the location and distribution of high-risk road sections, but only considering the number of equivalent accidents to identify high-risk road sections, the real high-risk road sections will inevitably be missed
The safety improvement measures for high-risk road sections at home and abroad have not formed a set of clear and comprehensive improvement countermeasures, and the improvement measures adopted are not well targeted, and may even worsen the traffic safety situation of high-risk road sections

Method used

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  • Travel risk control method in high-risk road segment
  • Travel risk control method in high-risk road segment
  • Travel risk control method in high-risk road segment

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Embodiment

[0082] The high-risk road section K4+000-K6+600 selected by the present invention belongs to the Xi'an Ring Expressway. This section is a two-way six-lane section, including Xiewang Interchange in the east-west direction, and part of the main road between Xingyuan and Huokou. According to the actual mileage, the number of lanes, etc. of the high-risk road section K4+000~K6+600, draw the schematic diagram of the road section in the TransModeler simulation software, refer to the driving risk control scheme designed in the present invention, and set corresponding measures for simulation. Such as Figure 7 Shown is a schematic diagram of the high-risk road section K4+000~K6+600, in which the numbers in the figure are the numbers of the OD starting and ending points.

[0083] Among them, the simulation diagram of Xiewang Interchange is as follows: Figure 8 shown.

[0084] Simulation parameter settings:

[0085] (1) Basic parameter setting

[0086] The OD matrix describes the s...

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Abstract

The invention discloses a travel risk control method in a high-risk road segment. The method comprises the steps that 1, a road segment in unit length is selected, and the high-risk road segment in anaccident set is obtained through calculation; 2, traffic flow on the high-risk road segment is divided into two states; 3, a high-risk region is divided into two functional segments, namely an early-warning segment and the high-risk road segment; and 4, according to a spatial layout of the early-warning segment and the high-risk road segment shown in the step 3, the arrangement position of information publishing equipment is obtained. According to the method, firstly, the appropriate road segment unit length is selected for a research object, several different combinations are divided in combination with a dynamic segmented movement step length method; next, a Relim algorithm is adopted to mine a frequent item set in each combination, the number of traffic accidents and casualties are quantitatively processed, and the traffic accident high-risk road segment small in length and in the accident set is obtained; and then accident influence factors in the found high-risk road segment aresubjected to association rule mining.

Description

technical field [0001] The invention belongs to the technical field of driving safety, and in particular relates to a driving risk control method for high-risk road sections. Background technique [0002] The identification methods for high-risk road sections in the prior art are all based on historical traffic accident data. The severity of traffic accidents on different types of high-risk road sections is different, so the casualties caused by traffic accidents must also be considered. In order to identify the location and distribution of high-risk road sections more comprehensively, but only considering the number of equivalent accidents to identify high-risk road sections, the real high-risk road sections will inevitably be missed. The safety improvement measures for high-risk road sections at home and abroad have not formed a set of clear and comprehensive improvement countermeasures, and the improvement measures adopted are not well targeted, and may even worsen the tr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G08G1/01G08G1/09G06Q10/06
CPCG06Q10/0635G08G1/0125G08G1/09
Inventor 靳引利单源鹤王萍刘坤孙铸王宇张志刚孙姣姣马党利
Owner CHANGAN UNIV
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