HomeMy WebLinkAboutSupplemental Communications from Robert Goldberg1
Gloria Harper
From:Robert Goldberg <rgoldberg@live.com>
Sent:Sunday, January 24, 2021 4:58 PM
To:Thomas Moore; Schelly Sustarsic; Mike Varipapa; Sandra Massa-Lavitt; Joe Kalmick
Cc:Jill Ingram; Gloria Harper; Charles M. Kelly; Jeannette Andruss; Steve Myrter
Subject:Questions for Monday's Open Session, 1/25/21
Attachments:SB Bld Current Traffic Flow.pdf
Dear Council and Staff,
Please see my questions below regarding Items D and F on Monday's open session meeting. I have attached a
referenced page from Item F.
Thank you for your consideration and service,
Robert Goldberg
Item D: Staff Authorized Contracts
The last contract in the table provided is for $7000 to Coast Surveying, Inc. This contract was posted to the City
Clerk’s database. The consultant’s contract proposal indicates that the purpose of the contract is to “review
the City of Seal Beach supplied preliminary title report and associated documents, as well as record maps in
the area, to assist the City in sorting out certain rights the City has within Old Ranch Parkway that was granted
by the Bixby Ranch owners.”
What City rights are being investigated and why?
Item F: SB Blvd Traffic Signal Synchronization
Page 32 (attached) of the proposal from Baker Intl states that a 2017 OCTA survey found SB Blvd to have a
corridor synchronization performance index (CSPI) of only 56.7 out of 100. This means that “traveling through
signalized intersections [is associated] with moderately high stops and slower travel speeds.”
After all of the construction, timing, and fine tuning is completed in October 2021 (per page 31 of the
proposal), what is the expected CSPI score?
How many minutes will be expected to be cut from the average travel time from, say, the intersection
at PCH to Westminster Blvd or the 405 southbound on‐ramp?
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Page | 32
PROJECT UNDERSTANDING
Seal Beach Boulevard is the western most corridor in the County that runs from Pacific Coast Highway (PCH) north to
crossing over the Interstate-405 (405) freeway to the City limits before turning into Los Alamitos Boulevard. The Corridor
is nearly 3.8 mile-long segment covering 16 traffic signals. The corridor includes joint signals with the City of Los Alamitos
and County of Orange which are monitored and maintained on the City Quicnet system, along with three Caltrans
maintained signals at PCH and the 405 northbound and southbound ramps. Shown in the Figure 6 on the following
page are the initial findings and understandings of the project corridor characteristics.
The average daily traffic volumes range from 20,000-25,000 in the south end of the corridor near PCH to over 40,000
near the 405 Freeway interchanges. The land uses along the north-south corridor vary with mostly limited access military
to the east and local residential and Leisure World to the west between PCH and the 405 freeway, with a mixture of
residential access and commercial centers to the north. The corridor is a six lane arterial with class II bike lanes and
posted speed limit of 50 MPH between PCH north to the 405 NB ramps, and from the 405 north to the City limits the
corridor signal density increases along with uncontrolled driveway access to the commercial shopping centers. In this
segment the road remains a six-lane arterial, without bike lanes, and a reduced posted speed limit of 40 MPH.
Existing Corridor Performance: The corridor was last timed as part of the Seal Beach/Los Alamitos Boulevard TSSP
(2013-2015), but conditions have since degraded. According to the 2017 OCTA Corridor Operational Performance
Report, the corridor operates at limited progression with an overall CSPI Score of 56.7 as Tier IV. We know that the likely
cause of this decrease in operational performance and coordination can be attributed to signal system decay, time clock
drifts, and issues between the City TMC and the local intersections which our project must resolve first before any benefit
can be made with new Synchronized timing plans.
Caltrans Coordination: The project will require ongoing coordination with Caltrans for timing improvements for their
three project locations. Recently, we provided design and analysis for the Culver Drive/Bonita Canyon Drive/Ford Road
Traffic Signal Synchronization Project (TSSP) for the City of Irvine which has multiple Caltrans ramp intersections within
the corridor. Over our 30-year history of successful work with/for Caltrans District 12, we have built solid relationships
that we can call on for cooperation and assistance. We will use our overall knowledge of their procedures and lead
times to provide an increased efficiency to the City for this project. Our direct access and established relationships
with Caltrans decision makers enabled quick access to required information and coordination of approvals.