نتایج جستجو برای: chain reaction rear end collision

تعداد نتایج: 1050660  

Journal: :Journal of clinical epidemiology 2001
A Berglund L Alfredsson I Jensen J D Cassidy A Nygren

Different symptoms, together with neck pain, have been attributed to persons with persistent complaints after a previous motor vehicle crash (MVC) and are sometimes referred to as the "late whiplash syndrome." A cohort study was conducted to determine whether exposure to a rear-end collision, with or without whiplash injury, is associated with future health complaints. The results regarding fut...

2008
Fei Ye Matthew Adams Sumit Roy

More than 23% of annual vehicle accidents are rear-end collisions, which provides an important test-case for enhanced collision avoidance approaches based on v2v wireless communications. In this work, we propose and study the impact of a 802.11 based multi-hop MAC protocol that propagates an emergency warning message (EWM) down a platoon of cars on a highway. The design objective is to ensure r...

2001
Hariharan Krishnan Scott Gibb Aaron Steinfeld Steven Shladover

The design of an innovative rear-end collision-warning system was evaluated for effectiveness. The crash scenario involves a lead vehicle not moving (LVNM) in one lane of a straight, dry, paved arterial road and a following vehicle approaching in the same lane. The LVNM has a rearfacing sensor and is equipped with the rear crash-warning system, which allows the LVNM to flash its brake lights or...

Journal: :Journal of the neurological sciences 2006
Ergun Y Uc Matthew Rizzo Steven W Anderson Qian Shi Jeffrey D Dawson

Drivers with cognitive impairment are at increased odds for vehicular crashes. Rear-end collisions (REC) are among the most common crash types. We tested REC avoidance in 61 drivers with mild Alzheimer's disease (AD) and 115 elderly controls using a high-fidelity interactive driving simulator. After a segment of uneventful driving, each driver suddenly encountered a lead vehicle stopped at an i...

Journal: :Journal of safety research 2012
John M Sullivan Michael J Flannagan

INTRODUCTION The relationship between the relative risk of a rear-end collision during a turn, merge, or lane change maneuver and the characteristics of the rear turn-signal configuration was examined using crash data from seven states in the United States. METHOD Rear turn-signal characteristics-including color, optics, separation, and light source-were identified for 55 vehicle models and u...

Esmaeel Ayati Masoud Ghasemi Noughabi Seyed Saber Naseralavi,

Development of disaggregate models for estimating different property damage collision type frequencies in urban intersections has rarely been studied, particularly in Iran. It seems very little research work being implemented for studying the effect factors on collision type frequency at intersections. The main objective of this paper is to develop suitable statistical models to predict types o...

2005
Salim Mammar Said Mammar Habib Haj-Salem

This paper presents a modified optimal velocity model (MOVM) for vehicle following. It makes use of time to collision (TTC) in order to reduce the reference speed when relative speed against the leading vehicle is negative. Simulation results have shown an anticipation behavior which leads to smoother maneuvers. The driver risk perception of rear-end collision is also enhanced. Copyright c ©200...

2013
Zhibin Li John M. Bigham David R. Ragland

Rear-end collisions would occur if vehicle speeds decrease abruptly when encountering kinematic waves (KWs) emanating from active bottlenecks. This study aims to develop a control strategy in variable speed limits (VSL) to reduce rear-end collision risks near recurrent bottlenecks. Using the crash prediction model developed for rear-end collisions related to risky KWs, the effectiveness of VSL ...

Journal: :TELKOMNIKA (Telecommunication Computing Electronics and Control) 2017

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