Lawrence A. Klein and Michael R. Kelley
Hughes Aircraft Company
Fullerton Operations
P. O. Box 3310
Fullerton, CA 92634
Report No. FHWA-RD-96-109
December 1996

This addendum contains the results of analyses for an additional 39 runs. These runs were selected to be representative of the widest possible range of traffic and weather conditions that were encountered. The number of runs for each site analyzed in this addendum was chosen giving consideration to the amount of data collected at each particular site.

The goal of the additional analysis was to study more results and thus, have a larger base by which to judge the performance of the technologies represented in the detector field tests. Understanding the operation of the detectors under test and the various layouts and configurations employed are an integral part of interpreting the resulting contained in this addendum. The necessary background information is constrained in the Task L final report in Chapters 9 and 10 and is not reproduced in this addendum. Indeed, this volume is not intended to be a stand-alone document, but a complement to the work already published.

The Detection Technology for IVHS project identified traffic parameters and their required accuracies for characterizing traffic flow in conventional and newer intelligent transportation systems (ITS), obtained state-of-the-art detectors, installed and evaluated them in three states having diverse climates, and studied the need and feasibility of establishing a national detector evaluation facility.

The other report in this series is: FHWA-RD-95-100 Volume 1: Final Report.

This project also used pooled funds from HPR-2(157) titled "Testing and Evaluating Traffic Detectors." The states which participated are Colorado, Florida, Iowa, Maryland, Minnesota, Missouri, Nebraska, New York, Oklahoma, Oregon, Virginia, and Wisconsin.

key words: detection technology, detectors, sensors, ITS, microwave, infrared, video image processing, ultrasound, inductive loops, magnetometers, presence, speed, occupancy

This information is available to the public through the NTIS, Springfield, VA 22161.

Ordering Information

Last Modified: March 20, 2007

Maintained by: traffic@nmsu.edu

[HOME] [ABOUT US] [TECH. ASSISTANCE] [EVENTS] [PRODUCT INFO.] [PUBLICATIONS] [CONTACTS] [LINKS]