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A study of pedestrian and bicyclist exposure to head injury in passenger car collisions based on accident data and simulations
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- Peng, Yong (author)
- Université de Strasbourg,University of Strasbourg,State Key Laboratory of Vehicle NVH and Safety Technology,Hunan University
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- Chen, Y. (author)
- Hunan University
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- Yang, Jikuang, 1948 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- (creator_code:org_t)
- Elsevier BV, 2012
- 2012
- English.
- In: Safety Science. - : Elsevier BV. - 0925-7535 .- 1879-1042. ; 50:9, s. 1749-1759
- Journal article (peer-reviewed)
Abstract
Subject headings
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- The objective was to assess head injury risks and kinematics of adult pedestrians and bicyclists in primary impact to the passenger cars and secondary impact to the ground using real world accident data and computer reconstructions of the accidents. For this purpose, a subsample of 402 pedestrians and 940 bicyclists from the GIDAS database, Germany, was used for the statistical analysis, from which 22 pedestrian and 18 bicyclist accidents were further selected for reconstruction. PC-Crash was used to calculate impact conditions, such as vehicle impact velocity, vehicle kinematic sequence, and thrown distance. These conditions were employed to identify the initial conditions in reconstruction in MADYMO program. A comparable analysis was conducted based on the results from accident analysis and computer reconstructions for the impact configurations and the resulting injury patterns of pedestrians and bicyclists in view of head injury risks. Differences in HIC, head-relative impact velocity, linear acceleration, maximum angular velocity and acceleration, contact force, thrown distance, Wrap Around Distance (WAD), and head contact time were evaluated. Injury risk curves were generated by using a logistic regression model for vehicle impact velocity. The results indicate that bicyclists suffered less severe injuries compared with severity of pedestrian injuries. In the selected samples, the AIS 2+ and AIS 3+ head injury risks for pedestrians are 50% probability at impact speed of 38.87 km/h and 54.39 km/h respectively, while for bicyclists at 53.66 km/h and 58.89 km/h respectively. The findings of high injury risks suggested that in the area with high frequency car-pedestrian accidents, the vehicle speed limit should be 40 km/h, while in the area with high frequency car-cyclist accidents the vehicle speed limit should be 50 km/h. (C) 2012 Elsevier Ltd. All rights reserved.
Subject headings
- TEKNIK OCH TEKNOLOGIER -- Maskinteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Mechanical Engineering (hsv//eng)
Keyword
- vehicle
- Comparison study
- Accident reconstruction
- Pedestrian and bicyclist
- Head kinematics and injury
Publication and Content Type
- art (subject category)
- ref (subject category)
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- Peng, Yong
- Chen, Y.
- Yang, Jikuang, 1 ...
- Otte, Dietmar
- Willinger, R.
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- ENGINEERING AND TECHNOLOGY
- ENGINEERING AND ...
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- Safety Science
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- Chalmers University of Technology
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