HomeMy WebLinkAboutItem 5.2 San Ramon Road Plan Line (2) f
CITY OF DUBLIN
AGENDA-STATEMENT
MEETING DATE : July 25 , 1983
SUBJECT San Ramon Road Plan Line
EXHIBITS ATTACHED Memo from Traffic Consultant (TJKM) ; List of proposed
traffic signal locations and access elements ; Diagram
of recommended lane patterns ; (Revised strip plan line
will be displayed at Council meeting)
RECOMMENDATION 1 ) Take Staff report
2 ) Open Public Hearing and take testimony
3) Close Public Hearing
4) Certify Negative Declaration
5) Approve the plan line as a conceptual document
for the future design of San Ramon Road improve-
ments along with access elements and future
traffic signal locations
6 ) Introduce ordinance to eliminate sight distance
problems by prohibiting parking on the northerly
curb line of Silvergate Drive either side of Dublin
Green Drive
7 ) Approve reconstruction of median on Silvergate Drive
between Dublin Green Drive and Calle Verde subject
to establishing means of financing the project
FINANCIAL STATEMENT: 1 ) If improvements constructed in accordance with plan
-cost would be approximately $2 ,225 ,000
2 ) Silvergate median modifications-cost approx $12 ,000
DESCRIPTION The City Traffic Engineer and City Engineer have
previously prepared a traffic study and accompanying drawings for the
improvement of San Ramon Road. These documents were presented to the City
Council at its meeting of April 25 , 1983.
The City Council directed Staff to consider the following issues and
scheduled a public hearing for the entire plan once those issues were
reviewed:
1 ) Access to Shell Station s/w corner Dublin Blvd/San Ramon Road
2 ) Access to Orchard Plaza shopping area
3) Access to vacant parcel behind Shamrock Village
4) Access from Bellina onto San Ramon Road
5 ) Silvergate median and access to adjacent developments
Chris Kinzel of TJKM has made those additional requested analyses ( see memo) ,
and the City Engineer has revised the strip map to reflect an acceleration
lane southbound from Bellina Street .
The elements of the schematic plan line which are before you for
consideration are :
1 ). Schematic lane configuration
2 ) Strip map of San Ramon Road indicating approximate location of future
improvements
3 ) List of proposed traffic signal locations
4) List of possible access points onto San Ramon Road
The issues of traffic problems on Silvergate Drive are not part of this plan,
but were raised through this process and are covered in the City Traffic
Engineer ' s report .
The issue of non-traffic related sign policy will be covered at a future
meeting.
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COPIES TO: Jeffery Sketchley
ITEM N0.
Jack Beacham
� - - 5• ,L- - - - -
MEMORANDUM
DATE: July 19, 1983
TO: City Engineer
FROM: Chris Kinzel
SUBJECT: San Ramon Road Plan Line
At the City Council meeting in which the recommendations for the
widening of San Ramon Road were presented, the Council asked for further
discussion on some of the issues. These are discussed herein:
1. Access to the Orchard Shopping Center from San Ramon Road: It is my
feeling that access can be safely allowed provided that certain
conditions are met. First, since the center was built with access soley
to Regional Street , with access to San Ramon Road certain modifications
would be appropriate. The on-site circulation pattern would have to be
altered and a major landscaped area located between the buildings
occupied by Computerland and Sofa Beds Ltd. would have to be removed.
See attached Figure 1 for an aerial photo of this area.
On San Ramon Road itself , space would have to be provided for
acceleration and deceleration lanes for northbound traffic at the new
driveway, as is being planned for the southbound lanes . This may
require the dedication of additional right of way and adjustment of the
existing service road behind the buildings . It should be noted that
access rights to San Ramon Road were originally acquired by Caltrans
when San Ramon Road was a State Highway. It may be appropriate for the
current property owner to repurchase the access rights.
With these issues in mind the shopping center may elect to request
access to San Ramon Road from the City. One final point is that the
center can expect a certain amount of through traffic as motorists
short-cut from San Ramon Road to the Albertson and Payless area through
the Orchard Center to bypass one or two traffic signals.
2. Access to vacant property east of San Ramon Road and north of Amador
Valley Boulevard: There is a vacant parcel located immediately north of
the roller skating arena which fronts on Starward Drive. The Council
asked if this parcel could also take access to San Ramon Road. In this
case , it is possible to design a new development which can have proper
access features from San Ramon Road, along the lines described for the
Orchard Shopping Center. Again , through traffic could be an issue which
would detrimentally impact the development itself. It should be
possible , however , to eliminate this problem with careful design .
Figure 1 also shows this area.
City Engineer -2- July 19, 1983
3. Various traffic issues on Silvergate Drive west of San Ramon Road :
Residents raised some concerns which are only indirectly related to
possible changes on San Ramon Road. The first deals with parking on the
north side of Silvergate Drive. Upon field checking this area, it is my
recommendation that parking be prohibited on the north side of
Silvergate Drive both east and west of Dublin Green Drive. On the east
side of Dublin Green there is space for one parking stall in front of
the office building near the 7-11 store. This stall is not critical to
businesses in the area and impairs the sight distance of vehicles trying
to enter Silvergate from Dublin Green. Figure 2 shows these issues.
Likewise , on the west side of the intersection , about 4 to 5 parking
stalls provide a significant sight distance impairment to Dublin Green
motorists . The office building near these stalls appears to have
adequate off street parking. Additional on street stalls are also
available on Dublin Green Drive itself.
Should the Council concur with these recommendations , it would be
necessary to enact an ordinance to restrict such parking.
In addition, it would be desirable to reposition the existing Stop bar
painted on the street so that motorists would stop in a more favorable
position to view oncoming traffic.
In addition it is recommended that the median on Silvergate Drive
located between Dublin Green Drive and Calle Verde Road be removed.
This would eliminate the requirement for motorists entering Silvertree
Lane to make a U-turn at Calle Verde and enter with a right turn
movement . Instead, they could make a left turn at Silvertree itself.
There are 3 street lights in the median to be removed. Two could be
saved by leaving the tips of the median at their present location. The
third light could be relocated or removed.
4. New driveway for Shell Station at Dublin Boulevard : The Shell
service station located at the southwest corner of Dublin Boulevard and
San Ramon Road has requested direct driveway access to San Ramon Road
just south of the intersection. It is recommended that such a driveway
not be permitted for the following reasons: This location is , and will
continue to be , one of the heaviest travelled spots in the City. Much
of the traffic at this location has just made a left or right turn from
Dublin Boulevard. In addition , there are high volumes of southbound
traffic . A great deal of the traffic is destined for the I-580
interchange located just beyond the intersection. To add a driveway at
this location would compromise traffic safety in the area.
The Shell station has recently added a 24 hour retail outlet to its
operation which increases the traffic and potential problems. The
station site also has direct access to a restaurant and office building
• City Engineer -3- July 19, 1983
which would be able to use a new driveway to gain direct access to the
area hear the interchange.
Even though the final configuration of the Dublin Boulevard and San
Ramon Road intersection will not be determined until the completion of
the Dublin Boulevard traffic study, it is not expected that this will
change the recommendation concerning a new driveway.
5 . Bellina Street acceleration lane : It was requested that an
acceleration lane be provided for westbound Bellina Street traffic
turning left onto southbound San Ramon Road. There is a median opening
at this location which allows for the left turn movement. The requested
change is a minor modification to the median which can be accomplished
at the time of actual construction. We forsee no problems with this
request , and have changed the drawings to reflect such a change.
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SILVERGATE DRIVE TRAFFIC ISSUES
As part of the early public input to the San Ramon Road Plan Line and ensuing
Specific Plan Study, concern was expressed that there was a sight distance
problem for those motorists exiting Dublin Green Drive onto Silvergate Drive .
The City Traffic Engineer has reviewed the problem and is recommending the
elimination of some parking on Silvergate Drive to reduce this problem. In
addition, some pavement restriping will be required
A second issue is the problem of the Silvertree residents having to travel
west on Silvergate Drive and make a "U" turn to get back to their street
entrance .
Again, the City Traffic Engineer has reviewed the problem and is recommending
that the bulk of the median be removed between Dublin Green Drive and Calle
Verde Road, repaved and striped to allow both left turn into Dublin Green
Drive and Silvertree Lane . This removal would result in the loss of one
median street light .
RECOMMENDATION
It is Staff ' s recommendation that the City Council take the following
actions :
1 ) Approve the plan line as a conceptual document for the future design of
San Ramon Road improvements along with access elements and future traffic
signal locations
2 ) Introduce ordinance restricting parking on Silvergate Drive
3 ) Add the removal of the Silvergate Drive median to next year ' s capital
improvement program list of projects
SAN RAMON ROAD PLAN LINE
. PROPOSED TRAFFIC SIGNAL LOCATIONS & MODIFICATIONS
1 . Dublin Boulevard - Modify and relocate signals as necessary for
projected traffic and street widening. Interface with State of California
as this signal was constructed and is maintained by them.
2 . Amador Valley Boulevard - Modify, add eastbound direction indications ,
and relocate signals as necessary for street and intersection
modifications .
3. Silvergate Drive - Add new 3 legged signal system to fit proposed
ultimate width of street .
4. Shannon Avenue - Modify and relocate signals to match street widening.
5 . Vomac Road - Add new 4-way signal system to fit proposed ultimate width
of street .
6 . Alcosta Boulevard - Add new 4-way signal system to fit proposed
ultimate intersection configuration. Interface with the City of San Ramon
as 3 legs of the intersection are within their jurisdiction.
ACCESS ELEMENTS
1 . I-580 off-ramps to Dublin Boulevard - No direct access allowed.
2 . Dublin Boulevard to Martin Canyon Creek - West side
a) Provide acceleration/deceleration lanes
b) Amador Valley Boulevard be extended to the west as a public or
private street to allow for northbound traffic .
c) Properties each provide access through to allow access out at the
Amador Valley Boulevard intersection for northbound traffic.
3. Dublin Boulevard to Martin Canyon Creek - East side
a) Possible access into Orchard Shopping Center provided that
circulation and safety modifications be made and the issue of
repurchase of access rights be addressed.
b) Possible access to vacant property north of Amador Valley Boulevard
provided that circulation and safety issues be addressed as well as
repurchase of access rights .
4. Martin Canyon Creek to Bellina Street " No access except at existing
intersections .
5. Bellina Street to Alcosta Boulevard - Possible access to shopping
center on east side of street provided that circulation, safety and access
rights issues be resolved.
ORDINANCE NO. - 83
AN ORDINANCE OF THE CITY OF DUBLIN
ESTABLISHING TRAFFIC REGULATIONS
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The City Council of the City of Dublin does ordain
as follows :
Section- l . NO-PARKING-ZONES:
Article 7 , relating to "No Parking Zones" , of
the Alameda County Ordinance Code previously adopted by the City
of Dublin is amended by the addition of Section - to read:
6- Silvergate -Drive. On the northerly
curbline between Dublin Green Drive and San Ramon Road and
westerly of Dublin Green Drive for a length of 100 feet .
Section- 2. - -POSTING--OF -ORDINANCE
The City Clerk of the City of Dublin shall cause this
ordinance to be posted in at least three ( 3) public places in the
City of Dublin in accordance with Section 36933 of the Government
Code of the State of California.
PASSED AND ADOPTED by the City Council of the City of
Dublin on this th day of 1983, by the following votes :
AYES :
NOES :
ABSENT:
ATTEST: Mayor
By - - - -
City C er
ALCOSTA BLVD SILVERGATE DR
1
BELINA ST AMADOR VALLEY BLVD
VOMAC RD DUBLIN BLVD
SHANNON AVE 1-580
RECOMMENDED LANE PATTERN
SAN RAMON ROAD
1 - 580 TO ALCOSTA BOULEVARD
SILVERGATE DR