Abstract
The accuracy of saturation flow values is of prime importance when determining the capacity of signalized intersections. The objective of this study was to collect a large sample of field measurements so that reliable saturation flow values could be obtained and the factors affecting saturation flow could be identified.
The results identified several factors which had significant influence on saturation flow. A formula was recommended for use in estimating an appropriate saturation flow value for a specific lane on an approach to an intersection. Adjustment factors were applied to a "base'' saturation flow value. Adjustments were developed for the following factors; location in city, city population, vehicle type and turning maneuver, gradient, width of lane, turning radius (jar right-turning vehicles), pedestrian activity, type of lane, speed limit, and light condition.
Report Date
5-1982
Report Number
UKTRP-82-8
Digital Object Identifier
http://dx.doi.org/10.13023/KTC.RR.1982.08
Repository Citation
Agent, Kenneth R. and Crabtree, Joseph D., "Analysis of Saturation Flow at Signalized Intersections" (1982). Kentucky Transportation Center Research Report. 761.
https://uknowledge.uky.edu/ktc_researchreports/761
Notes
The contents of this report reflect the views of the authors, who are responsible for the facts and accuracy of the data presented herein. The contents do not necessarily reflect the official views or policies of the University of Kentucky, the Federal Highway Administration, or the Kentucky Department of Transportation. This report does not constitute a standard, specification, or regulation.