A History of Pedestrian Signal Walking Speed Assumptions资料.pdf

文档介绍：LaPlante and Kaeser 3rd Urban Street Symposium 1
June 24-27, 2007 Seattle, Washington
A HISTORY OF PEDESTRIAN SIGNAL WALKING SPEED ASSUMPTIONS


AUTHORS:
John LaPlante, PE, PTOE Thomas P. Kaeser, PE, PTOE
. Lin International . Lin International
5960 N. Milwaukee Avenue 5960 N. Milwaukee Avenue
Chicago, IL 60646 Chicago, IL 60646
jlaplante@ tkaeser@


ABSTRACT
The Manual of Uniform Traffic Control Devices (MUTCD) has long used ft/sec as
the mended walking speed to be used in setting the time for the pedestrian
clearance (Flashing Don’t Walk) phase for pedestrian signal installations. Recently, the
mittee on Uniform Traffic Control Devices voted to change the
mended walking speed to ft/sec for the pedestrian clearance phase, and -
ft/sec for the entire Walk/Flashing Don’t Walk interval. This paper will give the history
of the ft/sec walking speed, going back to the 1961 MUTCD, and then explain the
rationale for the new MUTCD mendations.
LaPlante and Kaeser 2
A HISTORY OF PEDESTRIAN SIGNAL WALKING SPEED ASSUMPTIONS
by John LaPlante, PE, PTOE and Thomas Kaeser, PE, PTOE

INTRODUCTION
For motor vehicle travel, the use of the yellow signal indication to create s
suitable clearance time between the green and red signal phases has been a well-
understood traffic control tool for over 80 years. The