Citation

Stokes RW, Stover VG, Messer CJ. Transp. Res. Rec. 1986; 1091: 95-101.

Copyright

(Copyright © 1986, Transportation Research Board, National Research Council, National Academy of Sciences USA, Publisher SAGE Publishing)

DOI

unavailable

PMID

unavailable

Abstract

In this paper, data from 14 intersection approaches with exclusive double left-turn lanes in three Texas cities are used to illustrate the use of simple linear regression to estimate saturation flows. Some theoretical considerations and potential bias in saturation flows estimated by simple linear regression are also briefly discussed. Average left-turn saturation flows in excess of 1,800 vehicles per hour of green per lane for the majority of the study sites within each city are suggested by the regression estimates. Relative to generally accepted straight-through flow rates, the regression models appear to have substantially underestimated average left-turn departure headways.

Record URL:
http://onlinepubs.trb.org/Onlinepubs/trr/1986/1091/1091-013.pdf

Language: en

Keywords

ROADS AND STREETS; STREET TRAFFIC CONTROL; DATA PROCESSING - Data Reduction and Analysis; STATISTICAL METHODS - Regression Analysis