Evaluation Of Two Countdown Pedestrian
Signal Displays For Pedestrian Safety
Author(s)
S. A. Arhin, E.C. Noel & M. Lakew
Abstract
The Manual on Uniform Traffic Control Devices (MUTCD) states that
Countdown Pedestrian Signals (CPS) shall only be displayed during the
clearance interval (FLASHING DON’T WALK – FDW) of pedestrian signals.
The purpose of the CPS display is to inform pedestrians of the remaining time
for crossing a road controlled by the signal, to discourage them from starting
when there is insufficient time for complete crossing, and to inform those who
are already on the way of the remaining time before the beginning of the DON’T
WALK (DW) interval. The general literature on CPS is conclusive that CPS is
better understood than the conventional pedestrian signals. In the District of
Columbia the CPS display starts at the onset of the Steady WALK (SW) interval
and continues through the FDW interval. It is not certain whether this CPS
display has any advantage over the standard display as prescribed by the
MUTCD. In this research a comparative field study of both types of countdown
displays at twenty-five (25) intersections in the District of Columbia was
conducted in addition to an attitudinal survey to gauge the public’s preference of
the type of display. The results of the evaluation showed that at the majority of
the intersections studied, there were no statistically significant differences in
pedestrian crossing behaviors (using 5% significance level) due to the type of
CPS display. The attitudinal survey results showed that the majority of
pedestrians (~86%) and drivers (~83%) prefer CPS display which starts at the
onset of the SW.
Keywords: pedestrian safety, Countdown Pedestrian Signals.
Keywords
pedestrian safety, Countdown Pedestrian Signals
Related Book
Other papers in this volume
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