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Title	ENVIRONMENTAL SENSOR SYSTEMS FOR SAFE TRAFFIC OPERATIONS. FINAL REPORT
Accession No	00713114
Corp. Authors / Publisher	Castle Rock Consultants ; Federal Highway Administration
Publication Date	19951000
Description	161 p.; Figures(29); References(45); Tables(21)
Languages	English
Abstract	This report provides the results of a detailed investigation of environmental sensors and their applicability in highway operations. If describes the functional requirements for a weather condition detection device to be applied to the roadway infrastructure based upon current guidelines of various State and Federal agencies. The report also analyzes the results of a year-long series of field tests of visibility sensors. A group of five stationary sensors and one mobile sensor were examined to determine the applicability of the data reported by these devices. Among the areas of focus were the accuracy of the reported visibility to the actual conditions, time to respond to visibility changes, and the robustness of the systems. The results of the tests appear to indicate that these devices have definite possibilities for future deployment, particularly in conjunction with intelligent transportation system (ITS) technologies. This report is intended for use by those organizations with interest in transportation and safety-related issues.
Supplemental Information	For Appendices A-K see Volume II.
TRT Terms	Accuracy ; Environment ; Field tests ; Information organization ; Intelligent transportation systems ; Performance ; Sensors ; Visibility ; Weather conditions
Other Terms	Environmental data
Subject Areas	H54 OPERATIONS AND TRAFFIC CONTROL; I73 Traffic Control
Contract Number	DTFH61-92-C-00012
Report Number	FHWA-RD-95-073; 3A1C0262
Availability	National Technical Information Service Order Number: PB96-100953
TRIS Files	HRIS
Database	TRIS Online

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