Evaluation of Alternative Detection Technologies for Trains and Highway Vehicles at Highway Rail Intersections

Evaluation of Alternative Detection Technologies for Trains and Highway Vehicles at Highway Rail Intersections PDF

Author: U.s. Department of Transportation

Publisher: CreateSpace

Published: 2013-12

Total Pages: 122

ISBN-13: 9781494499730

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Under sponsorship from the Federal Railroad Administration (FRA), the Transportation Technology Center, Inc. (TTCI) and the John A. Volpe National Transportation Systems Center (Volpe Center) evaluated five technologies for their ability to detect trains and/or highway vehicles approaching and occupying highway railroad intersections (HRI). TTCI conducted tests on the performance of these technologies during October and November 1999 at the FRA's Transportation Technology Center in Pueblo, Colorado, USA.

Evaluation of Some Existing Technologies for Vehicle Detection

Evaluation of Some Existing Technologies for Vehicle Detection PDF

Author: Dan R. Middleton

Publisher:

Published: 1999

Total Pages: 188

ISBN-13:

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Most vehicle detection today relies on inductive loop detectors (ILDs). However, problems with installation and maintenance of these detectors have necessitated evaluation of alternative detection systems. Replacing ILDs with better detectors requires a thorough evaluation of the alternatives. This evaluation included examination of the functional quality, reliability, and cost of these technologies as well as development of recommendations for application. Primary detection technologies included in this study are video image detection systems (VIDS), passive infrared, active infrared, passive magnetic, radar, Doppler microwave, passive acoustic, and ILDs. Results of new detector testing clearly indicate promising alternatives to ILDs, but the limitations of these new detectors must also be accepted. Researchers found that some technologies performed quite well while, in some cases, offering features that are more flexible than ILDs. These technologies include VIDS, passive infrared, active infrared, radar, Doppler microwave, and pulse ultrasonic.

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