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THE OBJECTIVE EVALUATION OF TRAFFIC STREAM FLOW
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English
Abstract
This paper describes the evolution of equipment and techniques leading to the development of a “Quality Index of Traffic Flow”. Four applications of the quality index were studied: The development of cost figures for different values of the index; an investigation of the relationship between density, volume and the quality indices; a test of the correlation between gasoline consumption and the quality of flow; and an attempt to discover if there is a correlation between the quality of flow and the frequency of highway accidents.
At the conclusion of these studies it became possible to modify the original equipment, as a result the “Drivometer and Traffic Events Recorder” was developed. Using this equipment, a mathematical interpretation of driver’s responses to traffic events was developed and three additional studies were delineated. These included: the functional classification of streets and highways, effect of highway design and control devices on traffic flow, and testing vehicle proving grounds.
A recent study using the modified equipment was to determine the effective distance of urban highway travel for supermarket shopping trips.
Authors
Citation
GREENSHIELDS, B., "THE OBJECTIVE EVALUATION OF TRAFFIC STREAM FLOW," SAE Technical Paper 640434, 1964, https://doi.org/10.4271/640434.Also In
References
- Greenshields, Bruce D. “Quality of Traffic Transmission” Thirty-Fourth Annual Meeting of the Highway Research Board, January, 1955, and “Quality of Traffic Flow”, Bruce D. Greenshields, Quality and Theory of Traffic Flow, a symposium, Bureau of Highway Traffic Yale University 1961
- Matson Smith Hurd Traffic Engineering McGraw-Hill Book Company 1955 20 22
- Heimbach Louis Clinton Effective Distance of Urban Travel for Supermarket Shopping Trips, a dissertation submitted in partial fulfillment of the requirements for the degree of Doctor of Philosophy University of Michigan June 1963