HomeMy WebLinkAbouttecm_121404Minutes
TRAFFIC ENGINEERING COMMITTEE
December 14, 2004
Members Present
Ben Kageyama, Chair
Mike Harris
Dan Baxter
Jerry Whitaker
Rick Seanor
Others Present
John McCowen
Antonio Andrade
Staff Present Members Absent
Cathy Elawadly, Recording Secretary Dave Lohse
Dan Walker
The meeting was called to order by Chair Ben Kageyama at 3:06 p.m. in
Conference Room No. 3, Ukiah Civic Center, 300 Seminary Avenue, Ukiah,
California.
II. APPROVAL OF MINUTES: October 12, 2004
ON A MOTION by Member Harris, seconded by Member Richard, it was carried
by an all AYE voice vote of the members present to approve the October 12,
2004 minutes, as submitted.
ABSTAIN: Members Harris, Richard, Baxter
Chair Kageyama
III. AUDIENCE COMMENTS ON NON-AGENDA ITEMS
No one from the audience came forward.
IV. OLD BUSINESS
a. None
V. NEW BUSINESS
a. Discussion and possible action regarding merge lane on
South Dora Street at Gobbi
Member Seanor reported Antonio Andrade has requested the TEC review the
merge lane for southbound Dora Street traffic. According to Mr. Andrade, drivers
are not aware of proper use of the merge lane, especially when children are
being dropped off at Yokayo School by improperly merging across the solid white
traffic stripe (channelizing line). Mr. Andrade states that misuse of the merge lane
has nearly caused accidents with southbound traffic in the adjacent lane. An
aerial photomap (Attachment "B") shows the general layout of the intersection
where there is an 8-inch solid white traffic stripe, approximately 110 feet in
Traffic Engineering Committee December 14, 2004
Page 1
length, establishing the merge lane. The California Vehicle Code Sections 22100
and 21800 (a) (Attachment "C") provide adequate measures to address traffic
issues for this type of intersection. Attachment "D" provides various examples of
State standards for pavement markers and traffic lines for channelizing/bike lines
and lane line extensions through intersections.
The TEC may want to consider:
- Placing one-way clear reflective pavement markers in accordance with
Caltrans Standard Plan A20D, Detail 38.
- Recommending removal of the merge lane and replace with
appropriate yellow cross-hatch striping.
- Making no changes to the existing merge lane.
Member Seanor stated drivers misunderstand the use of the merge lane,
because it is not a typical situation.
Chair Kageyama inquired whether a driver can lawfully exit the intersection in
either one of the two lanes or from just the merge lane. He has observed drivers
exiting the intersection from either lane.
Member Seanor stated he did not know. He added that he hoped Captain Dan
Walker had been in attendance to answer the question.
Member Whitaker has observed that many drivers cut across the merge lane to
the through lane rather than entering the merge lane when negotiating a left turn
from Gobbi Street.
Antonio Andrade has also observed the above-referenced scenarios.
John McCowen requested clarification that a driver turning left from Gobbi
Street can cut across the merge lane onto Dora Street, provided there is no other
driver southbound on Dora Street entering the intersection.
Member Seanor stated this is the way he interprets the California Vehicle Code
on this issue.
John McCowen has observed that many drivers cut across the merge lane
when turning left from Gobbi Street without making any distinction between the
merge lane and the travel through lane.
Member Seanor stated it is unusual to have a merge lane from the left-hand side
of traffic. The traffic manuals primarily address the channelizing line, which is
how the street is currently striped to designate the merge lane.
Traffic Engineering Committee December 14, 2004
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Member Richard inquired whether information is available concerning the
number of accidents that may have occurred in conjunction with this type of
intersection.
Member Seanor replied the traffic accident statistics from the State have not
been available for the past two years.
Member Richard inquired whether traffic is so heavy that a merge lane is
necessary.
Member Whitaker indicated that traffic is heavy during the early morning hours
when school is in session.
John McCowen stated the merge lane makes traffic flow more efficiently when
used properly.
Member Whitaker commented most drivers do not understand its intended
purpose.
John McCowen stated clarification must be made whether it is unlawful to cross
the solid white line. He supported the concept of maintaining the merge lane.
Member Harris inquired if the question for Captain Walker is whether the line
should be dotted or dashed, and inquired whether implementing painted arrows
on the merge lane was a possibility.
Member Whitaker stated the problem is the cutting into the merge lane as
drivers make a left turn from Gobbi Street without properly merging into the lane.
Member Harris commented a driver can legally complete a left turn in the merge
lane. The merge lane is not necessary if a driver is coming from the north and
heading south. He commented the intersection cannot accommodate a driver
proceeding south through the intersection and a driver turning left.
John McCowen commented drivers turning left from Gobbi Street automatically
go into the through lane without the realization that adjacent drivers can be in the
merge lane and the through at the same time.
Member Harris acknowledged the aforementioned comment, and stated the
driver heading southbound would have the right-of-way and should not be in the
intersection at the time a driver is making a left turn from Gobbi onto South Dora
Street.
John McCowen commented the driver southbound likely has the right-of-way to
the through traffic lane, provided he/she is not interfering with a person turning
Traffic Engineering Committee December 14, 2004
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left from Gobbi Street. Typically, the driver turning left from Gobbi Street feels
he/she has ownership to the through south lane.
Antonio Andrade commented one of two scenarios must occur; become better
educated on traffic laws or clarify the situation.
Member Seanor addressed the right-of-way issue at the intersection relevant to
Vehicle Code Section 22100, and commented that a driver making a turning left
would have the right-of-way when he/she enters the intersection unless striping
changes are made. A driver should wait for a vehicle to be out of the merge lane
intersection before another vehicular movement is made, according to California
Vehicle Code Section 21800.
A general discussion followed regarding the use of reflective pavement markers
to guide left turn traffic through the intersection. Drivers would still have the
opportunity to turn into the through lane when unoccupied by another vehicle and
likely cross over the reflectors when negotiating a left turn.
Antonio Andrade recommended the existing striped line be a broken line.
John McCowen further replied drivers southbound can get a false sense of
security that the merge lane is ultimately dedicated to them. He stated, for
example, the left-turn lanes are clearly marked all through the intersection at
Airport Park Boulevard and Talmage Road. A driver has the opportunity to
change lanes when it is safe to do so.
A general discussion followed regarding the use of arrows to appropriately direct
drivers into the merge lane, giving the indication that two lanes do exist on Dora
Street and that the situation is not a "free for all."
A brief discussion followed regarding the issue of safety with the elementary
school located adjacent to the merge lane.
ON A MOTION by Member Harris, seconded by Member Whitaker, it was carried
by an all AYE voice vote of the members present to recommend the City Director
of Public Works install arrows in the merge lane and that further action on this
matter be continued to the next regular meeting so that the accident report for the
intersection can be evaluated and a determination made whether a single solid or
dashed line is necessary for the configuration.
John McCowen recommended the motion include a clarification whether there is
away to legally stripe the lane so that drivers cannot go from the merge to the
through lane until the lanes actually merge.
b. Discussion and possible action regarding locations to post
electronic speed display signs
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Member Seanor reported the City successfully obtained a grant from the Office
of Traffic Safety (OTS) to fund the installation of four electronic speed display
signs. The pair of signs would be placed on each end of the street. One pair of
signs is intended for installation at a location where school children may be
present. The other set of signs is planned for installation on a street with a high
volume of speeding vehicles. One pair of signs will be wired directly to an AC
power source and the other set will be solar-powered.
Staff was informed by OTS after the grant was obtained that the electronic speed
display signs may not be installed on streets identified on the Federal Aid
System. Additionally, the City cannot post electronic speed display signs on
these street sections, which are further classified as either "arterial or collector."
The signs may only be posted on street classified as local (residential) streets.
Member Seanor stated City Engineer Diana Steele recommended the electronic
speed display signs be placed on Oak Manor Drive and Waugh Lane.
Member Seanor noted Attachment "A" references the City's maintained mileage
report that identifies the street sections listed on the Federal Aid System. No
electronic speed display signs funded by OTS may be placed on the streets
listed.
The TEC noted that Ford Street could be a candidate for the display signs
A brief discussion followed regarding whether the signs should be permanently
placed.
A general discussion followed regarding Lorraine Street and other City streets
where traffic calming devices were implemented to discourage speeding.
A general discussion also followed regarding the benefit of purchasing all solar
display signs.
Chair Kageyama inquired whether it would be necessary to notify residents that
a speed display sign would be installed on their street.
Member Seanor explained a general press release is required for receiving the
grant. A separate press release and/or newspaper article can be published
advising the public where the signs will be displayed.
Member Harris proposed that a letter be sent to the residents advising them of
the display signs. Even though the signs would be installed in the public right-of-
way, they are large and would be clearly visible to the residents.
A brief discussion followed regarding potential lighting impacts to adjacent
properties.
Traffic Engineering Committee December 14, 2004
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Chair Kageyama noted that if such signs are installed on streets recognized for
speeding violations, the neighborhood would likely be pleased to have them.
A brief discussion followed regarding measures to control the lighting features for
the device, such an a time clock.
Member Richard inquired whether there is any noise associated with the
mechanisms.
Member Seanor replied the display signs must comply with State standards, so
it is unlikely any noise impacts would be associated.
ON A MOTION by Member Harris, seconded by Member Whitaker, it was carried
by an all AYE voice vote of the members present to recommend to the Director of
Public Works the posting of two electronic speed display signs on Oak Manor
Drive and two on Ford Street.
VI. COMMITTEE MEMBER REPORTS
a. Update on City Traffic Circulation Study
Member Seanor reported a second public meeting with the consultants should
be scheduled shortly. A traffic model projecting what City traffic would look like in
2025 is being prepared, and should be completed in early 2005.
b. Update on City Parking Study
Member Seanor reported staff anticipates a draft of the recently conducted City
Parking Study.
c. Update on Crosswalks
Member Whitaker stated the crosswalk markings implemented to further assist
pedestrians at Freitas Street and South State Street appear to be helpful.
d. Route 101 Corridor Interchange Study
Member Seanor stated the City and MCOG have been working on this project.
The project involves reviewing all of the interchanges on 101 from Boonville
Road to Lake Mendocino Drive relative to overall performance and
recommendations for increased efficiency for each off-ramp. The MCOG
subcommittee recently met to select a consultant to conduct the interchange
study.
VII. MISCELLANEOUS ITEMS
Member Seanor commented on the South Barnes Street issue concerning
whether parking should be restricted and whether the street has additional
right-of-way width. Staff is currently researching maps to identify the public
right-of-ways. The matter will be revisited by TEC when the necessary title
research has been completed.
TrafFc Engineering Committee December 14, 2004
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Member Richard stated MTA provides input relevant to the Citywide Traffic
Study.
VIII. ADJOURNMENT
There being no further business, the me
.-
B ama, h
etng was adjourned at 4:02 p.m.
~ _
Cathy lawadly, Recor g ecretary
Traffic Engineering Committee December 14, 2004
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