Recognition of Rail Car Retroreflective Patterns for Improving Nighttime Conspicuity

نویسندگان

  • Thomas Sheridan
  • John A. Volpe
چکیده

public through the National Technical Information Service, Springfield, VA 22161 This document is also available on the FRA Web site at www.fra.dot.gov Final Report July 2001 DOT/FRA/ORD-00/07 U. S. Department of Transportation Research and Special Programs Administration John A. Volpe National Transportation Systems Center Cambridge, MA 02142-1093 Office of Research and Development Washington, DC 20590 Recognition of Rail Car Retroreflective Patterns for Improving Nighttime Conspicuity Federal Railroad Administration U. S. Department of Transportation

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Effects of retroreflector positioning on nighttime recognition of pedestrians.

This field study investigated potential effects of retroreflector positioning on recognition of nighttime pedestrians. The subject's task was to press a response button whenever he/she recognized a pedestrian on or alongside the road, while in a car with low-beam lamps on that was driven at a constant speed on a dark road. The results showed that each retroreflector configuration yielded signif...

متن کامل

High visibility safety apparel and nighttime conspicuity of pedestrians in work zones.

PROBLEM Every year numerous occupational fatalities result from pedestrians being struck by motor vehicles intruding into work zones. METHOD Attributes of retroreflective personal safety garments on pedestrian conspicuity at night were assessed in a field study. Using instrumented vehicles on a closed track, participants drove through simulated work zones attempting to detect pedestrians loca...

متن کامل

A Comparative Analysis of Electroluminescent and Retrorefelective Materials as Nighttime Pedestrian Conspicuity Aids

Recent literature suggests that retroreflective materials, when configured in a biological motion pattern, make vulnerable road users (such as pedestrians) more conspicuous to drivers at night. However, retroreflective elements in clothing can be effective only when a light source (e.g., automobile headlamps) illuminates the material in such a way as to allow the material to reflect sufficient ...

متن کامل

The effectiveness of side marker lamps: an experimental study.

The present experiment investigated the effect of small amber lamps mounted near the front and rear on each side of a passenger car-so called side marker lamps-on visual detection and recognition of passenger cars in complex nighttime environments. It was determined whether cars equipped with side marker lamps are detected and recognized earlier and more accurately than cars without side marker...

متن کامل

Solving a New Multi-Period Mathematical Model of the Rail-Car Fleet Size and Car Utilization by Simulated Annealing

There is a significant interaction between sizing a fleet of rail cars and its utilization. This paper presents a new multi-period mathematical model and a solution procedure to optimize the rail-car fleet size and freight car allocation, wherein car demands, and travel times, are assumed to be deterministic, and unmet demands are backordered. This problem is considered NP-complete. In other wo...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2001