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Author:
Publisher:
ISBN:
Category : Rearview mirrors
Languages : en
Pages : 32
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Author:
Publisher:
ISBN:
Category : Rearview mirrors
Languages : en
Pages : 32
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Author: JUHA LUOMA, MICHAEL SIVAK, MICHAEL J. FLANNAGAN
Publisher:
ISBN:
Category :
Languages : en
Pages : 14
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Author: Juha Luoma
Publisher:
ISBN:
Category :
Languages : en
Pages : 9
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Book Description
This quasi-experiment was designed to investigate the effects of the type of driver-side mirror on lane-change accidents. The analysis was based on 407 accidents reported from 1987 to 1992 to Finnish insurance companies, for vehicles with passenger-side convex mirrors and one of three types of driver-side mirrors (flat, convex, or multiradius). The results showed that there was no difference between the multiradius and convex mirrors in the frequencies of lane-change accidents to the left. Compared to the flat mirror, the mean effect of the multiradius and convex mirror was 22% decrease. the 95% confidence interval ranged from a 51% decrease to a 25% increase. This result was not related to driver characteristics or driving conditions. In conclusion, the multiradius and convex driver-side mirrors, in comparison to the flat mirror, are more likely to reduce than increase land-change accidents. A theoretical implication of this study is that minimizing the blind spot is likely to be more important than providing an undistorted image of objects. From a practical point of view, the present findings support the use of multiradius and convex driver-side mirrors.
Author: Juha Luoma
Publisher:
ISBN:
Category : Automobile driving
Languages : en
Pages : 20
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Book Description
This quasi-experiment investigated the effects on lane change crashes of nonplanar (spherical convex and multiradius) driver-side mirrors compared to planar mirrors. The analysis was based on 1,062 crashes reported from 1987 to 1998 to Finnish insurance companies, for vehicles with passenger-side spherical convex mirrors and one of three types of driver-side mirror (planar, spherical convex, or multiradius). The results showed that the mean effect of nonplanar mirrors compared to planar mirrors was a statistically significant decrease of 22.9% in lane change crashes to the driver side. The effects of spherical convex and multiradius mirrors were not statistically different from each other. The nonplanar mirrors were beneficial especially for the high risk driver groups, as well as for the lane change situations and environmental conditions in which most lane change crashes take place in the U.S. The present findings support the use of nonplanar driver-side mirrors. If drivers have problems with judgements of the speed and distance of approaching vehicles using nonplanar mirrors, the magnitude of this concern seems to be minimal compared toapparent benefits with regard to other mechanisms of lane change crashes.
Author: J.-S. Wang
Publisher:
ISBN:
Category : Traffic accidents
Languages : en
Pages : 68
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Book Description
Author: John Fiske Brown
Publisher: Charles C Thomas Publisher
ISBN: 0398084165
Category : Health & Fitness
Languages : en
Pages : 286
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Book Description
This book is not an advanced engineering text. Rather, it is a practical presentation with traffic accident reconstruction principles presented in a simple, understandable manner so that the reader will easily retain these important concepts. The engineering principles involved are introduced at the elementary level, and in many cases equations used in freshman physics are derived. The authors believe that the derivations are presented in the simplest manner possible so that the reader will retain this material. The book is the result of an effort to compile over a period of years useful forensic engineering data, information, and analytical techniques over and above those taught to non-engineers. Many of the mathematical treatments are original. In general, the book reflects the authors' combined over forty years experience of forensic investigations involving thousands of cases. It offers something for everyone interested in forensic engineering. In the new second edition, Chapters 3 to 5 have been substantially modified, and the remainder of the text has been edited to bring its various parts up to date. The experienced investigator will find a wealth of new ideas and relationships to fill in gaps in his knowledge and reinforce his analytical approaches. Those starting new in this work will have an advantage on their competition after studying this material. For the non-technical reader, most of the book is eminently readable. To an investigator, attorney, or insurance adjuster with only a nodding acquaintance with freshman physics, the book should be totally comprehensible.
Author: J. Schumann
Publisher:
ISBN:
Category :
Languages : en
Pages : 20
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Book Description
This analysis of accident data was designed to replicate and extend an earlier analysis that investigated the effects of different types of driver-side mirrors on lane-change accidents (Luoma, Sivak, and Flannagan, 1995). The present analysis was based on 3,038 lane-change accidents that occurred in Great Britain between 1989 and 1992. Mirror information for the most popular car models in Great Britain was collected to identify different types of exterior mirrors. Data analysis was based on the odds ration of cars with different types of driver-side mirrors (plane or convex) being involved in a lane-change accident to the driver side. Because all cars were equipped with the same type of passenger-side mirror (convex), lane-change accidents to the passenger side served as a baseline data to control for exposure. The results can be summarized as follows: (1) Convex driver-side mirrors do not increase the risk of being involved in lane-change accidents to the driver side. (2) Consistent with the findings of Luoma et al. (1995), accident data for the largest cars revealed a tendency, albeit not statistically significant, for a decrease in lane-change accidents to the driver side when equipped with convex driver-side mirrors. (3) Convex driver-side mirrors tended to be beneficial for the highest risk groups--the youngest and the oldest drivers.
Author: John D. Chovan
Publisher:
ISBN:
Category : Automobile driving
Languages : en
Pages : 64
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Author: Alexander P. de Vos
Publisher:
ISBN:
Category :
Languages : en
Pages : 118
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Author:
Publisher:
ISBN:
Category : Delegated legislation
Languages : en
Pages : 712
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Book Description
