CONTACT US: Contact info
|
Citation |
Muttart JW, Hurwitz DS, Pradhan A, Fisher DL, Knodler MA. J. Transp. Saf. Secur. 2011; 3(1): 38-58. |
|
Copyright |
(Copyright © 2011, Southeastern Transportation Center, and Beijing Jiaotong University, Publisher Informa - Taylor and Francis Group) |
|
DOI |
|
PMID |
unavailable |
|
Abstract |
Young children are overrepresented in run-over backing crashes. The research goal was to propose a backing warning system based upon drivers? backing behavior that was sensitive to different backing scenarios. A backing collision avoidance model that is sensitive to different backing scenarios needs to consider how drivers accelerate and respond to unanticipated hazards while backing. To develop a backing warning system that supplements the abilities of a driver, the driver's response times and backing acceleration were recorded in a field experiment in two different backing scenarios (short backing, e.g., a parking lot, and long backing, e.g., a driveway). The results show that those backing a long distance reached greater peak velocities than those backing short distances. Drivers traveling at greater speeds require greater warning distances than are offered by current backing sensor systems. Additionally, driver brake reaction times and braking latency times were much longer when backing than is typical when responding to hazards and driving forward. From the findings, a backing warning algorithm is proposed that may be optimized for short and long backing scenarios based upon the brake reaction times, braking latencies, peak speeds, and acceleration behaviors of the short and long backers, respectively. |