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Comprehensive risk evaluation of interchange ramp area traffic based on real vehicle driving data
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Yue ZHANG1, Shi ZHANG1, Weijian DUAN2, Xinglin ZHU3, Jin XU**, 3
China Safety Science Journal | 2025, 35(8) : 219 - 226
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China Safety Science Journal | 2025, 35(8): 219-226
• Public safety •
Comprehensive risk evaluation of interchange ramp area traffic based on real vehicle driving data
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Yue ZHANG1, Shi ZHANG1, Weijian DUAN2, Xinglin ZHU3, Jin XU**, 3
Affiliations
  • 1College of Traffic& Transportation, Chongqing Jiaotong University, Chongqing 400074, China
  • 2Traffic Management Bureau, Chongqing Municipal Public Security Bureau, Chongqing 400054, China
  • 3College of Transportation and Logistics Engineering, Xinjiang Agricultural University, Urumqi Xinjiang 830052, China
Published: 2025-08-28 doi: 10.16265/j.cnki.issn1003-3033.2025.08.0852
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In order to evaluate comprehensive driving risk in interchange ramp areas, a real-vehicle test was conducted on Chongqing interchange groups, focusing on three typical ramps: right-turn directional, left-turn semi-directional, and small-radius loop ramps. Drivers' electrocardiographic data and vehicle operation status were collected by PhysioLAB and Speedbox, respectively, when passing through ramps. Psychological load and vehicle operation risks of the three ramps were analyzed, and an improved entropy-weighted Technique for Order Preference by Similarity to an Ideal Solution(TOPSIS) method was used to construct and evaluate a comprehensive driving risk model. Results show four HRI change patterns: convex curve, continuous increase, continuous decrease and concave curve. Heart Rate Increase (HRI) in right-turn directional ramps first decreases, then increases, in left-turn semi-directional ramps, it first increases, then decreases near diverging/merging points, in small-radius loop ramps, it fluctuates significantly there. Vehicle operation risk is highest in ramp sections, increasing with smaller radii. The level of vehicle operation risk is small-radius loop ramp greater than left-turn semi-directional ramp, greater than right-turn directional ramp. Comprehensive driving risk peaks in ramp sections, widely distributed in split/confluence areas and peaking shortly after diversion points.

real vehicle driving data  /  interchange  /  ramp area  /  comprehensive risk evaluation  /  mental load  /  vehicle operational risk
Yue ZHANG, Shi ZHANG, Weijian DUAN, Xinglin ZHU, Jin XU. Comprehensive risk evaluation of interchange ramp area traffic based on real vehicle driving data[J]. China Safety Science Journal, 2025 , 35 (8) : 219 -226 . DOI: 10.16265/j.cnki.issn1003-3033.2025.08.0852
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Year 2025 volume 35 Issue 8
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Article Info
doi: 10.16265/j.cnki.issn1003-3033.2025.08.0852
  • Receive Date：2025-03-14
  • Online Date：2026-07-09
  • Published：2025-08-28
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History
  • Received：2025-03-14
  • Revised：2025-05-18
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Affiliations
    1College of Traffic& Transportation, Chongqing Jiaotong University, Chongqing 400074, China
    2Traffic Management Bureau, Chongqing Municipal Public Security Bureau, Chongqing 400054, China
    3College of Transportation and Logistics Engineering, Xinjiang Agricultural University, Urumqi Xinjiang 830052, China
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https://castjournals.cast.org.cn/joweb/zgaqkxxb/EN/10.16265/j.cnki.issn1003-3033.2025.08.0852
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