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Title: Analysis and prediction of intersection traffic violations using automated enforcement system data

Journal Article · · Accident Analysis and Prevention
 [1];  [1]; ORCiD logo [2];  [3];  [4]
  1. Tsinghua Univ., Beijing (China)
  2. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
  3. Southeast Univ., Nanjing (China)
  4. Univ. of Central Florida, Orlando, FL (United States)

We report that the automated enforcement system (AES) is an effective way of supplementing traditional traffic enforcement, and the traffic violation data from AES can also be effectively used for safety research. In this study, traffic violation data were used to analyze the influencing factors associated with traffic violations and to predict the probability of violations at intersections. The potential factors influencing violations include 24 independent factors related to time, space, traffic and weather. Results from a logistic model showed that the midday period, weekends, residential districts, collector roads, congested traffic conditions, high traffic flow, lower wind speed and low temperature would increase the probability of traffic violations. The probability of violations was predicted by the random forest algorithm, which was proven to be the best traffic violation prediction model among logistic regression, Gaussian naive Bayes, and support vector machine. Moreover, the proximity weighted synthetic oversampling technique (ProWSyn) method was applied to reduce the impact of the imbalance ratio (IR) and improve the model’s prediction performance. The receiver operating characteristics (ROC) curves and Precision-Recall (PR) curves illustrated that the random forest algorithm using oversampling data had the best classifier prediction performance than undersampling data. The area under curve (AUC) and out-of-bag (OOB) error with IR = 1 reached 0.914 and 0.0787, which showed the better performance of the random forest algorithm using ProWSyn in dealing with imbalanced traffic violation data.

Research Organization:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Organization:
USDOE; National Key Research and Development Program of China
Grant/Contract Number:
AC05-00OR22725; 2018YFB1601600
OSTI ID:
1854480
Journal Information:
Accident Analysis and Prevention, Vol. 162, Issue 1; ISSN 0001-4575
Publisher:
ElsevierCopyright Statement
Country of Publication:
United States
Language:
English

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