HomeMy WebLinkAbout2010/04/01 Additional Information
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ERRATA
3.3.1
Non-Compliance of Threshold Standard
Issue:
There was one non-compliant arterial segment during the period (2009)
under review.
Discussion:
Compared to the previous year (2008), there was significant improvement
during the most recent review cycle, with only one arterial segment failing
to meet the threshold standard. In 2008, there were three arterial
segments that failed.
In 2009, the one failing segment, northbound Heritage Road between
Olympic Parkway and Telegraph Canyon Road, did not meet the
threshold standard, due to excessive vehicular delay at the Heritage
Road/Telegraph Canyon Road signaled intersection. While it has been
out of compliance for the past several years, signal timing changes have
provided gradual improvement and increases in average travel speed.
However, after a signal change in August 2009, there were still more than
two hours of LOS D in the northbound direction.
SEGMENT (Limits) DIR LOS 2008 LOS 2009 CHANGE
(Hours) (Hours)
Heritage Road NB C(1) 0(4) E(1) GQ(.1-Ql Q~(a1) -1~Q.,+10
(Telegraph Canyon Road --
Olympic Parkway)
Due to its proximity to Casillas Elementary School and Rancho del Rey
Middle School, a heavy volume of pedestrian traffic at Telegraph Canyon
Road significantly impacts this arterial and the traffic signal timing. Field
investigations have shown that most pedestrians cross Telegraph Canyon
Road on the east side of Heritage Road, rather than the west side, which
takes longer to cross, due to an extra lane (an eastbound right turn lane).
Since the traffic signal timing must allow for pedestrian crossing time, the
extra length of the infrequently used west side of the intersection
negatively impacts the ability to make further traffic signal timing changes.
Therefore, later this year, the City will remove the crosswalk on the west
side of Telegraph Canyon Road, with a current Capital Improvement
Project. This will improve traffic flow, and, potentially, bring this arterial
into compliance.
In addition, SANDAG is moving forward with the South Bay Bus Rapid
Transit in this area, and planned improvements recommended for the
Heritage Road/Telegraph Canyon Road intersection should have a
positive effect on the northbound Heritage Road arterial.
Recommendation: Implement recommended compliance solutions, including eliminating the
crosswalk on the west side of Telegraph Canyon Road and improving the
Heritage RoadlTelegraph Canyon Road intersection, as needed
2010 Annual Report
Apri/2010
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