Board Of Aldermen - Agenda - 9/28/2020 - P182
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Vanasse Hangen Brustlin, Inc.
Figure 24: Concurrent Pedestrian Crossing
A comparison of exclusive pedestrian phasing to concurrent pedestrian phasing is
summarized as follows:
Exclusive Pedestrian Phasing vs Concurrent Pedestrian Phasing
¢ Results in longer delay for motor vehicles, *« Results in less delay for motor
bicycles, and pedestrians. vehicles, bicycles, and pedestrians.
* Provides a feeling of security for « Results in conflicts between turning
pedestrians when traffic is stopped vehicles and pedestrians.
e Used primarily in New England states * More widely used and recognized.
e Pedestrians often push button and cross « Incorporation of early release
against the pedestrian signal concurrent (leading pedestrian) interval lessens
with parallel traffic if no conflicts exist. conflicts with turning vehicles.
e May require NO RIGHT TURN ON RED « Pedestrian must exercise more
sign. caution and judgment.
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As stated in the fourth bullet of the concurrent pedestrian phasing discussion, traffic
signal phasing can be set for an early release so that pedestrians are well into the
crosswalk before vehicle traffic is given a green indication and permitted to turn.
This methodology is shown in Figure 25. Recent New England projects’ have shown
success in transitioning to a concurrent pedestrian crossing using the early release
(leading pedestrian) method for initial implementation with eventual phase out of
the leading interval as motorists become accustomed to moving with (and turning
vehicles yielding to) pedestrians.
The primary benefit to implementing concurrent pedestrian phasing is reduced delay
and improved vehicular, pedestrian, and bicycle mobility. Often this results in an
improvement to traffic and pedestrian operations by one level of service. The
downside to converting from exclusive to concurrent pedestrian phasing is the
potential for increased conflicts with the potential for as much as a 15 percent (high
traffic volume compared to high pedestrian activity) to 40 percent (high traffic
volume compared to low pedestrian activity) increase in vehicle, bicycle, and
pedestrian related crashes’.
v
| River Street at Massachusetts Avenue, Binney Street at Second Street, Binney Street at Third Street, Cambridge,
Massachusetts, 2009-2103.
: Transportation Research Record No. 847 and 1141, Washington, D.C.
Alternatives Evaluation
