Journal of Jilin University(Engineering and Technology Edition) ›› 2023, Vol. 53 ›› Issue (2): 457-467.doi: 10.13229/j.cnki.jdxbgxb20210614

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Inducement analysis of taxi drivers' traffic accidents based on MIMIC and machine learning

Heng-yan PAN1(),Wen-hui ZHANG2,Ting-ting LIANG3,Zhi-peng PENG1,Wei GAO4,Yong-gang WANG1()   

  1. 1.College of Transportation Engineering,Chang'an University,Xi'an 710064,China
    2.School of Traffic and Transportation,Northeast Forestry University,Harbin 150040,China
    3.School of Civil Engineering,Xi'an Traffic Engineering Institute,Xi'an 710399,China
    4.School of Transportation Science and Engineering,Harbin Institute of Technology,Harbin 150090,China
  • Received:2021-12-01 Online:2023-02-01 Published:2023-02-28
  • Contact: Yong-gang WANG E-mail:HyPan7@chd.edu.cn;wangyg@chd.edu.cn

Abstract:

Through the questionnaire, 2391 taxi drivers' personal attributes, physical fatigue perception, work load, risk driving behaviors and road traffic accident experience were collected. Multiple indicators and multiple causes(MIMIC) model is used to explore the induced effects of physical fatigue perception, risky driving behavior on traffic accidents, and to verify the effects of causal variable for gender, age and work pressure on physical fatigue perception and distracted driving behavior. Four machine learning algorithms, including logistic regression, naive Bayes, support vector machine and random forest, are selected to predict the taxi accident. The results show that: the increase of physical fatigue perception, errors driving behavior, radical driving behavior and distracted driving behavior can lead to the growth of accident rate, and gender, age and work load can affect the physical fatigue perception and frequency of distracted driving behavior. The accident prediction model based on machine learning is very effective, and the prediction effect of random forest is the highest, and the prediction accuracy of single characteristic variables 'risky driving behavior', 'distracted driving behavior' and 'physical fatigue perception' is acceptable. When the personal attribute indicators of 'working load', 'age', and 'gender' are introduced, the prediction accuracy can be further improved.

Key words: engineering of communications and transportation safety, professional taxi driver, road traffic accidents, MIMIC model, path analysis, moderation effect, machine learning

CLC Number: 

  • U491

Table 1

Frequency distribution of physical fatigue perception, risk and distracted driving behavior of taxi drivers %"

构面问题0123456

PF

(身体疲劳感知)

SLEE33.0825.9318.5315.276.111.090
FATI16.2217.9422.0423.1312.138.410.13

RDBs

(风险驾驶行为)

BELT31.220.8321.3316.487.532.630
REDL33.8428.0217.2310.927.42.590
ARRG23.3824.8923.817.987.2810
OVTA35.323.6721.5413.635.310.540
HONK49.126.5615.816.272.2600
LAMP43.3727.4417.988.532.6800
PARK31.8724.1724.1712.256.151.380
MERG44.7523.7616.989.913.680.920

DDs

(分心驾驶行为)

HAND32.223.321.6213.937.241.710
PHONE64.1220.9111.382.720.8800

Fig.1

Statistics on the number of road traffic accidents"

Fig.2

Perception of work load"

Table 2

Structure correlation matrix and question composition(n=2391)"

构面Cronbach's αPFRTCSRDBSDDsWL题项
PF0.5361----SLEE、FATI
RTCS0.3610.710**1---PDO、PI
RDBS0.9140.763**0.861**1--

LAMP、HONK、REDL、MERG、

OVTA、BELT、PARK、AGGR

DDs0.7300.641**0.779**0.807**1-HAND、PHONE
WL0.4750.273**0.069**0.327**0.247**1HOUD、ODUT、DCOM、MFEE

Fig.3

Theoretical framework of taxi drivers' traffic accident induction"

Fig.4

Estimation results of standardized path coefficient for drivers"

Table 3

Non standardized path coefficient estimation and path coefficient difference analysis results"

类别路径

参数

估计

Bias-corrected percentile

method (-95%)

Percentile method (95%)
LowerUpperpLowerUpperp
中介效果PF-Radical-RTCs0.1350.1090.1650.0010.1080.1640.001
PF-Error-RTCs0.1120.1080.1160.0010.1090.1160.001
PF-DD-RTCs0.3210.2840.3630.0010.2840.3630.001
DD-Radical-RTCs0.1760.1420.2160.0010.1410.2140.001
DD-Error-RTCs0.1120.1080.1160.0010.1090.1160.001

远程

中介效果

PF-DD-Radical-RTCS0.0990.0790.1230.0010.0780.1220.001
PF-DD-Error-RTCS0.0630.0590.0670.0010.0590.0670.001
总效果PF-RTCs1.1711.1181.2300.0011.1181.2280.001
DD-RTCs0.8600.7760.9530.0010.7750.9530.001
效果差异Radical-RTCs to Error-RTCs0.1070.0520.1660.0010.0510.1650.001
PF-RTCs to DD-RTCs0.3100.1260.5700.0010.2020.4140.001
Gender-PF to Gender-DD0.3430.1260.570.0020.1260.5690.002
WL-PF to WL-DD0.1740.1110.2320.0010.1140.2350.001
Age-PF to Age-DD0.2960.2290.3590.0010.2290.3590.001

Fig.5

Accuracy of classifiers"

Table 4

AUC value of classifiers"

分类

特征

变量

AUC值

标准

误差

渐近

概率

95%

LCL

95%

UCL

分类

特征

变量

AUC值

标准

误差

渐近

概率

95%

LCL

95%

UCL

LRS10.8860.0074.51×10-2260.8730.899NBS10.8860.0075.43×10-2270.8740.899
S20.8770.0071.12×10-2160.8640.891S20.8780.0078.53×10-2170.8640.891
S30.9590.00300.9530.966S30.9540.00400.9460.961
S1~S30.9640.00300.9580.970S1~S30.9530.00400.9450.961
S1~S40.9720.00300.9660.977S1~S40.9540.00400.9460.962
均值0.932均值0.925
SVMS10.8510.0082.71×10-1870.8350.866RFS10.8940.0061.15×10-2350.8820.906
S20.8360.0095.42×10-1720.8190.853S20.8820.0077.59×10-2220.8690.895
S30.9460.00500.9370.955S30.9940.00100.9920.995
S1~S30.9590.00400.9510.967S1~S30.9960.00100.9950.997
S1~S40.9770.00200.9720.982S1~S40.9970.00100.9960.998
均值0.914均值0.952
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