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Rear-end collision

About: Rear-end collision is a research topic. Over the lifetime, 618 publications have been published within this topic receiving 5666 citations. The topic is also known as: shunt.


Papers
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Proceedings ArticleDOI
01 Jan 1958

8 citations

Proceedings ArticleDOI
06 Oct 2009
TL;DR: The time-to-collision assuming a constant relative acceleration is employed as a subjective index of risk based on the collected data in an unconstrained drive and the discussion from a theory of visual control to show the effectiveness of the system.
Abstract: The paper proposes a rear-end collision warning system for drivers, where how to evaluate the risk of collision is critical. In the proposed system, the time-to-collision assuming a constant relative acceleration is employed as a subjective index of risk based on the collected data in an unconstrained drive and the discussion from a theory of visual control. The system produces an alert when it detects anomaly of the index using the one-class support vector machine, which is trained with the aforementioned data. Some cross-validation experiments show the effectiveness of the system.

8 citations

01 Jan 2011
TL;DR: The paper introduces a possible method of assessing the probability of rear-end collision occurrence and presents the results of analyses of headways between vehicles on road sections, which can be used as an indirect measure of traffic safety.
Abstract: The paper presents the results of analyses of headways between vehicles on road sections, which can be used as an indirect measure of traffic safety. Such an assumption is derived from a classic model of risk, where the number of accidents and collisions is a product of the values of risk exposure and probability of risk events and their severity. Time To Collisions (TTC) and Time available for Driver’s Reaction (TDR) were taken by the authors as indirect measures of risk. To evaluate the TTC the authors used a typical physical model. Deceleration values and lengths of vehicles were adopted in reference to their type (passenger cars and heavy vehicles). The aim of the analysis was to indicate the impact of several factors, not only traffic flow intensity, on the share of unsafe headways between vehicles, which can affect rear-end collision risk. Particular attention was paid to the impact of the following factors on unsafe headways in traffic flow: (1) traffic volume and traffic flow composition and its speed, (2) different drivers’ behaviour at night-time, (3) characteristics of road and road development, (4) random character of drivers’ behaviour, expressed by variability of reaction time. The data coming from measures on 219 road sections in Poland were involved in the evaluation. There were sections of different cross-section types, with different speed limits, and of different localisation (e.g. roads through built-up area, suburban area and rural area). Additionally, entries of intersections and sections of approaches to pedestrian crossings were also taken into account. The analyses did not include the sections on entries to intersections with light signalling, which due to their specific functioning need a separate study, as is presented in foreign literature (Archer, Young, 2009; Cunto, Saccomanno, 2009). The conducted analyses resulted in building up a database, comprising records of traffic parameters for over 2.6 million vehicles. 24-hour measurements (automatic traffic recorders) covered: time of vehicle’s appearance, speed and length of vehicles. The paper introduces a possible method of assessing the probability of rear-end collision occurrence.

8 citations

Patent
24 May 1989
TL;DR: In this paper, the authors proposed a scheme to enable a mobile vehicle to follow a preceding vehicle fitting to the travel speed of the preceding vehicle by projecting travel speed information of the mobile vehicle by a signal projecting means, and performing the automatic adjustment of the travel speeds of the vehicle based on the receiving information of a signal reception means by a rear end collision preventing control means.
Abstract: PURPOSE:To enable a mobile vehicle to follow a preceding vehicle fitting to the travel speed of the preceding vehicle by projecting the travel speed information of the mobile vehicle by a signal projecting means, and performing the automatic adjustment of the travel speed of the mobile vehicle based on the receiving information of a signal reception means by a rear end collision preventing control means. CONSTITUTION:When the mobile vehicle A2 approaches a preceding mobile vehicle A1 within a preset distance for preventing rear end collision the travel speed of the mobile vehicle A2 is adjusted automatically based on travel speed information from the signal projecting means S2 so that the travel speed can be set at the one fitted to the travel speed of the preceding mobile vehicle A1. Such adjustment for the travel speed is performed when the vehicle travels at decelerated speed, or when the vehicle travels so as to approach a stopped preceding mobile vehicle A1, and when the preceding mobile vehicle A1 restarts travel from a stopped state. In such a way, it is possible to follow and travel the mobile vehicle fitting to the travel speed of the preceding mobile vehicle A1.

8 citations


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Performance
Metrics
No. of papers in the topic in previous years
YearPapers
20213
202026
201925
201846
201731
201631