00464596

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http://onlinepubs.trb.org...trr/1987/1111/1111-007.pdf

https://scholar.google.co...scom&publication_year=1987

The objective of this research was to develop a validated spot speed study procedure that does not rely on automated equipment. The field study procedure applied a variety of speed collection techniques and compared results against baseline speeds obtained with reliable pavement instrumentation. A recommended manual-timing technique was based on observed accuracies with various vehicle-selection strategies, site conditions, sample sizes, observation period lengths, and observer characteristics.

Publication of this paper sponsored by Committee on Methodology for Evaluating Highway Improvements. Distribution, posting, or copying of this PDF is strictly prohibited without written permission of the Transportation Research Board of the National Academy of Sciences. Unless otherwise indicated, all materials in this PDF are copyrighted by the National Academy of Sciences. Copyright © National Academy of Sciences. All rights reserved

00496549

pp 54-61

1987

Transportation Research Record

0-309-04463-4

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References (4) ; Tables (9)

Data collection; Field studies; Methodology; Spot speed; Traffic speed

Highways; Operations and Traffic Management; Safety and Human Factors; I71: Traffic Theory

TRIS, TRB

Dec 31 1987 12:00AM

• A METHOD OF CALCULATING THE EFFECTIVE INTENSITY OF MULTIPLE-FLICK FLASHTUBE SIGNALS
• A STUDY OF ROUTE SELECTION FROM HIGHWAY MAPS (ABRIDGMENT)
• ADVISORY SPEED SIGNS AND CURVE SIGNS AND THEIR EFFECT ON DRIVER EYE SCANNING AND DRIVING PERFORMANCE
• ALTERNATIVES TO ENFORCEMENT IN MODIFYING THE SPEEDING BEHAVIOR OF DRIVERS
• ANALYSIS OF HIGH-HAZARD LOCATIONS: IS AN EXPERT SYSTEMS APPROACH FEASIBLE?
• CRASH REVISITED: ADDITIONS TO ITS CLARITY, GENERALITY, AND UTILITY
• DEMONSTRATION OF REGRESSION ANALYSIS WITH ERROR IN THE INDEPENDENT VARIABLE
• EVALUATION OF ALTERNATIVE SIGN-LIGHTING SYSTEMS TO REDUCE OPERATING AND MAINTENANCE COSTS (DISCUSSION AND CLOSURE)
• EVALUATION OF OPPORTUNITY-BASED ACCIDENT RATE EXPRESSIONS
• EVALUATION OF THE EFFECTIVENESS OF CRASH CUSHION DELINEATION
• EXCESS TRAVEL: CAUSES, EXTENT, AND CONSEQUENCES
• RELATIONSHIPS BETWEEN VERTICAL AND HORIZONTAL ROADWAY ALIGNMENTS AND THE INCIDENCE OF FATAL ROLLOVER CRASHES IN NEW MEXICO AND GEORGIA
• SAFETY IMPLICATIONS OF TRUCK CONFIGURATION
• SPECIAL TRAFFIC CONTROL TO MEET MOTORIST INFORMATION NEEDS ON LONG, STEEP GRADES (DISCUSSION AND CLOSURE)
• STANDARD TARGET CONTRAST: A VISIBILITY PARAMETER BEYOND LUMINANCE TO EVALUATE THE QUALITY OF ROADWAY LIGHTING
• VIDEO COLLISION RECONSTRUCTION USING PHYSICAL EVIDENCE