Browsing by Author "Woo, T. Hugh"

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Determining the initial impact of rear-end collisions by trace evidence left on the vehicle from tires: A case report
(2018-10-01)
Woo, T. Hugh
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Wu, Chun Liang
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交大名義發表
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運輸與物流管理系註：原交通所+運管所
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National Chiao Tung University
If an automobile happens to crash into the back of another vehicle while travelling at high speeds, both vehicles will be seriously damaged. Consequently, it is not easy to reconstruct the initial collision state between the two vehicles or determine whether or not the risk perception of the driver is normal. The entire picture of the accident cannot be fully understood and thus clarifying the relevant legal responsibility is difficult. The trace evidence of tires, such as pattern, direction, and impression examination as well as other characteristics, can be carefully observed and used as evidence in accident reconstruction. A case report of a fatal collision involving a bus crashing into the frame of a full trailer on a freeway is examined in this study. The police agency used the characteristics of the trace evidence of the bus tires to reconstruct the initial collision state of the two vehicles to clarify the cause of the accident, and these determination guidelines can be used by police while handling similar cases in the future. This case uses new information regarding the initial collision state of road traffic accidents for reconstruction and provides knowledge and interest for the forensic community. (c) 2018 Published by Elsevier B.V.
Driving behaviors and accident risk under lifetime license revocation
(2011-07-01)
Chang, Hsin-Li
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Woo, T. Hugh
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Tseng, Chien-Ming
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Tseng, I-Yen
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運輸與物流管理系註：原交通所+運管所
This study explored the driving behaviors and crash risk of 768 drivers who were under administrative lifetime driver's license revocation (ALLR). It was found that most of the ALLR offenders (83.2%) were still driving and only a few (16.8%) of them gave up driving completely. Of the offenders still driving, 67.6% experienced encountering a police roadside check, but were not detained or ticketed by the police. Within this group, 50.6% continued driving while encountering a police check, 18.0% of them made an immediate U-turn and 9.5% of them parked and exited their car. As to crash risk, 15.2% of the ALLR offenders had at least one crash experience after the ALLR had been imposed. The results of the logistic regression models showed that the offenders' crash risk while under the ALLR was significantly correlated with their personal characteristics (personal income), penalty status (incarceration, civil compensation and the time elapsed since license revocation), annual distance driven, and needs for driving (working, commuting and driving kids). Low-income offenders were more inclined to have a crash while driving under the ALLR. Offenders penalized by being incarcerated or by paying a high civil compensation drove more carefully and were less of a crash risk under the ALLR. The results also showed there were no differences in crash risk under the ALLR between hit-and-run offences and drunk driving offences or for offenders with a professional license or an ordinary license. Generally, ALLR offenders drove somewhat more carefully and were less of a crash risk (4.3 crashes per million km driven) than legal licensed drivers (23.1 crashes per million km driven). Moreover, they seemed to drive more carefully than drivers who were under short-term license suspension/revocation which previous studies have found. (C) 2011 Elsevier Ltd. All rights reserved.
Modeling motivation and habit in driving behavior under lifetime driver's license revocation
(2013-03-01)
Tseng, Chien-Ming
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Chang, Hsin-Li
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Woo, T. Hugh
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運輸與物流管理系註：原交通所+運管所
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Department of Transportation and Logistics Management
The purpose of the present study was to verify the motivational factors underlying the theory of planned behavior (TPB) predicting the driving behavior of lifetime driving license revoked offenders. Of a total of 639 drivers whose licenses had been permanently revoked, 544 offenders completed a questionnaire constructed to measure attitudes toward behaviors, subjective norms, perceived behavioral control, behavioral intentions (the key constructs of the TPB), and previous driving habit strength. The finding of the study revealed that an offenders' driving behavior after a lifetime license revocation was significantly correlated to behavioral intention (R=0.60, p<0.01), perceived behavioral control (R=0.61, p<0.01), previous driving habit (R=0.44, p<0.01), and attitude (R=0.41, p<0.01). There was no evidence that subjective norms including road regulation, society ethics, and people important to offenders had an influence on driving behavior (R=0.03). Low driving habit strength offenders are motivated to drive because of behavioral intention, whereas strong driving habit strength offenders are motivated to drive because of perceived behavioral control. Previous driving habit strength is a moderator in the intention behavior relationship. The model appeared successful when previous habits were weak, but less successful when previous habits were strong. (C) 2012 Elsevier Ltd. All rights reserved.
Monitoring displays coupled with speed cameras - Effectiveness on speed reduction
(2007)
Woo, T. Hugh
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Ho, Shih-Ming
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Chen, Hung-Lin
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運輸與物流管理系註：原交通所+運管所
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Department of Transportation and Logistics Management
Speeding is a common behavior of drivers all over the world. Traditional speed-controlling measures fail to reduce speeding effectively. With advances in technology, new devices have been developed for such a purpose, including a speed-monitoring display (SMD) that detects the speed of vehicles and displays it on an electronic board, informing drivers of their current speed, It has been hypothesized that SMDs coupled with speed cameras to catch violators may deter drivers from speeding. This study examined the effectiveness of SMDs with enforcement cameras on speed reduction. Speed data of free-flowing vehicles were collected before and after the SMD and enforcement cameras were installed. Speed data were also collected with the SMD turned off and then on again. The results showed that mean speeds of vehicles were significantly reduced after SMD and camera installation. Even with the SMD turned off, the speed reduction was not significantly affected, but the proportion of speeding vehicles became higher. It was found that the presence of SMDs could alert drivers of enforcement cameras downstream, making speeders adjust their speed to comply with the limit.