Pedestrian Signal Safety - AAA Foundation for Traffic Safety

70
This intersection had adequate signal time available for all pedestrian phases with lower walking
speeds and each of the concurrent traffic movements. Therefore, vehicular delay was not affected
when the green times were adjusted based on the lower walking speeds
LOS and AVD for the major and minor approaches are included in Table F-12 in Appendix F to this
report.
Figure 11. Delay vs. volumes at White Plains, New York case study intersection for walking speeds of
3.00, 3.50, 4.00 ft./sec. and base conditions.
Table 19. White Plains, New York: Total intersection level of service and average delay per vehicle
under various volume and pedestrian walking speed scenarios.
Walking
speed
scenario
Salt Lake City, Utah
Existing
volume
+5-percent
volume
LOS (and average delay, in sec.)
+10-percent
volume
+15-percent
volume
+2-percent
volume
3.00 ft./sec. B (17) B (17) B (17) B (18) B (18)
3.50 ft./sec. B (17) B (17) B (17) B (18) B (18)
4.00 ft./sec. B (17) B (17) B (17) B (18) B (18)
Figure 12 and Table 20 show the total intersection LOS and ADPV for the Salt Lake City, Utah case
study intersection under various peak-hour traffic volume and pedestrian walking speed scenarios.
Table G-11 in Appendix G shows the intersection operational and geometric characteristics for the
Salt Lake City case study intersection.