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Driving comfort based two-lane highway traffic safety evaluation method

A technology for safety evaluation and highway traffic, applied in special data processing applications, instruments, electrical digital data processing, etc., can solve the problems of no quantitative calculation, inability to accurately determine the rate of change of the driver's heart rate, and low model accuracy , to achieve the effect of enhancing driving comfort, reducing quantity and high reliability

Active Publication Date: 2015-12-09
HEBEI UNIV OF TECH
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Problems solved by technology

[0003] The inventor Qiao Jiangang analyzed in detail the influence of straight curves, longitudinal slopes, curved slopes, etc. In terms of people-vehicle-road-environment, a cooperative oscillation model of driver comfort is established, and the safety of the measured road section is judged by heart rate changes. The shortcoming is that the impact of environmental factors on the driver's heart rate change rate has not been quantitatively calculated. , so the accuracy of the model is relatively low and cannot accurately determine the rate of change of the driver's heart rate

Method used

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  • Driving comfort based two-lane highway traffic safety evaluation method
  • Driving comfort based two-lane highway traffic safety evaluation method
  • Driving comfort based two-lane highway traffic safety evaluation method

Examples

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Embodiment 1

[0066] This example takes a two-lane road in Shaanxi Province as the evaluation object. The annual average daily traffic volume of this road is less than 6000pcu / d, and it is obviously in a free flow state throughout the day, which meets the selection requirements of the evaluation road section. The entire road section is mainly medium-sized trucks for transporting goods. The design speed of the entire road section K1073-K1100 in Shaanxi is 40km / h, Δν≤20km / h, which meets the speed consistency requirements as shown in Table 1. The road environment is good, the road width is 9m, and the carriageway With a width of 7m, it is a two-lane highway with rich road geometry.

[0067] Table 1 Speed ​​consistency evaluation standard table

[0068]

[0069]Due to the mechanical application of standards and normative indicators by the designers, accident "black spots" road sections with discontinuous lines, excessive speed changes, exceeding the driver's psychological tolerance limit and...

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Abstract

The present invention relates to a driving comfort based two-lane highway traffic safety evaluation method. In the method, a cooperative oscillation model of driver comfort in the prior art is used as a basis, and the cooperative oscillation model is further optimized according to comprehensive effects of four factors, i.e., a person, a vehicle, a road and an environment, on a heart rate variation rate of a driver to obtain a two-lane cooperative oscillation model. The model uses the heart rate variation rate of the driver as a reference, the heart rate variation rates of different drivers driving under different environmental conditions are analyzed by using a driving simulation chamber; the effects of the environmental factors on the heart rate variation rate of the driver are fully taken into consideration; and therefore a quantitative relationship between the environment factors and the heart rate variation rate of the driver is obtained, achieving higher accuracy.

Description

technical field [0001] The invention relates to a safety evaluation method, in particular to a two-lane highway traffic safety evaluation method based on driving comfort. Background technique [0002] At present, there are not many reports on the application of detection of various physiological current changes in the human body to study road traffic problems; there are even fewer examples of using medical and psychophysiological related instruments and methods to study road alignment and traffic safety. Although Korean scholars such as Chung and Chang have used EEG to study the straight length of the road and the entrance of the intersection, and have obtained satisfactory research results, but these studies are partial after all, and it is rare to study the straight line length of the road. Design a report on a practical study. [0003] The inventor Qiao Jiangang analyzed in detail the influence of straight curves, longitudinal slopes, curved slopes, etc. In terms of peo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50
Inventor 乔建刚杜艳爽李爱荣周彤
Owner HEBEI UNIV OF TECH
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