HomeMy WebLinkAboutAGENDA REPORT 1996 1106 CC REG ITEM 07H // • 4-96,
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AGENDA REPORT l
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TO: The Honorable City Council 71 1�
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FROM: Kenneth C. Gilbert, Director of Public Works
DATE: October 28, 1996 (Council Meeting 11-6-96)
SUBJECT: Consider Traffic Study for the Realignment of Moorpark
Road South of Tierra Rejada Road.
A. Background
The County of Ventura has approved a project for the realignment
and reconstruction of Moorpark Road between Tierra Rejada Road
and Santa Rosa Road. The primary objectives of this project is
to address certain safety concerns attendant to the present
design, location and condition of this roadway.
The conceptual design for this project identified a number of
alternative alignments. All of the various alternative
alignments would have the realigned and reconstructed road
intersect Tierra Rejada Road at one of three alternative
locations depicted on the diagram attached as Exhibit 1 and
listed as follows:
1) the present location of this intersection;
2) Spring Road; or
3) Science Drive (future street) .
If either alternate #2 or #3 is selected, the existing Moorpark
Road would serve local traffic only. Regardless of which
location is selected, the project would either upgrade the
existing traffic signal or install a new traffic signal as
required. The alignment preferred by the County of Ventura
moves the intersection to Spring Road.
B. City Reaction
The City of Moorpark has not yet taken a position on this
proposed project. Prior to taking a position, it was deemed
logical to first look at the environmental impacts posed by each
of the alignment alternatives -- especially impacts related to
revised traffic patterns.
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Moorpark Road Realignment
November 1996
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C. Environmental Impact Assessment
Subsequent to the preparation of a conceptual design for the
proposed project, the County of Ventura retained a consultant
(Fugro West, Inc. ) to prepare the environmental report for the
project. Those efforts are proceeding. City staff is unaware
of the expected date that the draft document will be completed
and distributed for comment.
D. Kaku Report
The environmental document will assess a number of impacts. One
of the categories of impacts are those related to traffic. The
County's consultant retained Kaku Associates to prepare a
Traffic Study for this project. That study looked at and
evaluated the traffic and circulation impacts associated with
alternate road alignments intersecting at all three of the
intersections mentioned in Section A above. A copy of that
report has been placed in the City Council Office for your
review.
A number of roadway segments and intersections within the City
of Moorpark were analyzed. The diagram attached as Exhibit 2
shows the location of the intersections analyzed.
The Kaku report concluded that the location of the intersection
of Moorpark Road and Tierra Rejada Road (existing location,
Spring Road or Science Drive) would have no adverse impact on
traffic volumes or circulation patterns. Both traffic volumes
and circulation patterns are projected to be unaffected by the
location of that intersection.
E. Austin-Foust Report
The City of Moorpark retained the services of Austin-Foust
Associates to review and comment on the Kaku Study. A copy of
the Austin-Foust report is attached as Exhibit 3.
The Austin-Foust report generally agrees with the conclusions
contained in the Kaku Study. Some comments are offered in an
attempt to clarify certain points. The Austin-Foust report also
offers a mild preference for Science Drive over the other
alternative locations for the intersection.
A copy of the Austin-Foust Report has been forwarded to the
County of Ventura Public Works Department for their information.
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Moorpark Road Realignment
November 1996
Page 3
F. Final Documents
When the full environmental document has been completed, it will
be circulated for comment. A copy of that document along with
recommended response from the City, will be presented to the
City Council when available.
Subsequent to the review and approval of the final environmental
document by the County of Ventura, it is presumed that the
County will make a final decision regarding the recommended road
alignment for this project. When a County staff recommendation
on this matter is sent forward to the County Board of
Supervisors, that recommendation will be made available to the
City Council for comment.
It is also anticipated that, prior to construction, the County
of Ventura will provide the City with a copy of the plans and
specifications for this project. Only then will the City be
able to determine the full extent of the impacts of this project
on the City's streets. When those plans are made available,
that information will be provided to the City Council.
RECOMMENDATIONS
Receive and file report.
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LOCATION OF ANALYZED INTERSECTIONS 000073 .
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ULT-0 -1' 1 :0b FIU11 HUbI1N-FUUSi H550C. TO 18055298270 P.02
TRAFFIC STUDY FOR TEE
MOORPARK ROAD REALIGNMENT
City of Moorpark
Technical Review
Prepared for.
City of Moorpark
Prepared by:
Austin-Foust Associates, Inc.
2020 North Tustin Avenue
Santa Ana, California 92705-7827
(714) 667-0496
•
October 2, 1996
•
000074
OCT 02 '96 15:07 PAGE.02
_, nVJ uY-�uw i naauc. lU 19055298270 P.03
E x\*A)j 3
TRAFFIC STUDY FOR THE
MOORPARK ROAD REALIGNMENT
Technical Review
Austin-Foust Associates,Inc. (AFA) provided professional review and comments for a draft
report titled Traffic Study for the Moorpark Road Rearmament dated March 1996 and prepared by
Kaku Associates, Inc. This traffic study evaluates three alternative alignments for
realignment/relocation of e;cisting Moorpark Road between Tierra Rejada Road and Santa Rosa
Road. Upon review of the study, AFA offers the following observations and comments.
1. First, from the broad perspective of the conclusion discussed in the report prepared
by Kaku Associates, Inc., and AFA agrees, the study demonstrates that from a
roadway capacity standpoint relatively little difference exists between the three
alternatives. Consequently we found little to argue about regarding the basic finding
of the study. However, having stated that we find the study's conclusions to be
generally supported by the study methodology,we nonetheless have some comments.
These comments are not expected to change the basic conclusion of the report, but
they do "clear up" a few points. These are:
a. On page 2 the study reports that Santa Rosa Road"...has one of the highest
accident rates in Ventura County." However, no additional discussion or
supporting data is provided. Such potential legal damaging statements should
either be supported with specific data or sufficiently clarified in a technical
report.
b. On page 13 and Table 4 on page 14 the northbound left-turn movement from
Moorpark Road to Tierra Rejada Road is reported as LOS "F'. While this
is technically correct, this statement of the LOS appears misleading with
regards to the overall LOS of the intersection. This particular movement is
quite a low volume (Le., only 20 vph AM and 60 vph PM) compared to 280
vph AM and 400 vph PM for the much more important northbound right-turn
movement. An overall failing LOS "F is not characteristic of this
intersection.
c. On page 25 the study assumes the "Old" Moorpark Road would be reserved
for local use only. No discussion is provided on how this is to be done or the
impact if some commuters continued to use it as a by-pass route. In the
traffic model this link is eliminated but in the"real world"some consideration
of the manner in which this restriction is to be implemented is necessary.
d. On page 30,item 8 the study describes the future signal at Science Drive and
Tierra Rejada Road as "protective westbound and southbound left-turn
phases." This statement is unclear. Does this mean (as it seems to imply)
protected left-turns wilt he provided only in these two directions? If so,*this
Tutu:Study for the Moorpark Rood 1 Aussin-Fanet Associates,inc.
Realignment-Technical.Review 380014.tn
000075
OCT 02 '96 15:08 PAGE.03
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could be an issue as left-turn phases are normally installed in pairs (ie.,both
northbound and southbound together).
e. On page 33, bulletpoint 5 indicates the City model forecasts no change in
ADT for the three alignments. The model uses the vicinity of Moorpark
Road and Santa Rosa Road as a fixed regional volume control point which is
responsible for the models similar assignment for all three alternatives.
Consequently, a more conventional (non-modelled) analysis is required to
verify this conclusion.
fL Finally, a purely professional opinion is offered. It appears that Alternative
3 (Science Drive)is perhaps the best alternative because this option involves
construction and extension of a new roadway_ This allows the intersection of
Science Drive/Tierra Rejada Road to be adequately designed from the outset
rather than extending Spring Road and being somewhat constrained by its
existing cross section. In addition, the Los Angeles/Spring Road intersection
is one of the most critical locations in the City. Extending Spring Road
southerly of Tierra Rejada Road could impact this intersection although the
study indicates this is not the case. Even so, construction of an entirely new
road, Science Drive, may face less objection from existing residents than
extending an existing facility like Spring Road.
Traffic Study for the Moorpark Road 2 Austin-Faust Aagociates,Inc
Realig:tneat-Tect<mca]Review 380014.tn
000076
TOTAL P.04
OCT 02 '95 15:0B PAGE.04