HomeMy WebLinkAbout2005-08-01; Traffic Safety Commission; MinutesMINUTES
MEETING OF: TRAFFIC SAFETY COMMISSION
DATE OF MEETING:
TIME OF MEETING: 3:OO p.m.
PLACE OF MEETING:
August 1,2005 (Regular Meeting)
City Council Chambers
CALL TO ORDER
Chair Dorsey called the Meeting to order at 3:OO p.m.
ROLL CALL:
Present:
Absent:
Staff Members Present:
Chair Steve Dorsey
Vice-Chair Susan Gardner
Commissioner Gordon Cress
Commissioner Guy Roney
Commissioner Bonnie Bradshaw
None
Robert Johnson, Deputy City Engineer, Transportation
Lt. Don Rawson, Carlsbad Police Department
Sgt. Chris Boyd, Carlsbad Police Department
APPROVAL OF MINUTES:
Because of the Fourth of July holiday, there was no July meeting held and, therefore, no minutes to
be approved.
June 6,2005
ACTION: Motion by Commissioner Cress, and duly seconded by Vice-Chair
Gardner, to approve the minutes of the regular meeting of June 6,
2005 as presented.
VOTE: 4-0- 1
AYES: Cress, Dorsey, Gardner, Bradshaw
NOES: None
ABSTAIN: Roney
August 1,2005 Traffic Safety Commission Meeting Page 2
ITEM 4 - ORAL COMMUNICATIONS:
None.
ITEM 5 - PREVIOUS BUSINESS:
Robert Johnson, Deputy City Engineer, stated that at the July 26~ City Council meeting, the City
Council adopted an ordinance to establish an all-way stop at the intersection of Hidden Valley Road
at Lighthouse Road and the school driveway. A work order has been issued and work will be
implemented during the month of August. At the same meeting, the City Council adopted an
ordinance to establish that both yield signs on Walnut Avenue at the Madison Street intersection be
replaced with stop signs. A work order has been issued.
ITEM 6 - NEW BUSINESS:
ITEM 6A: Establish a prima facie speed limit upon Paseo Avellano from Calle Barcelona
to Segovia Way.
Mr. Johnson stated that Silvia Garcia, a resident of La Costa Valley in south Carlsbad, initiated this
item. She is requesting a prima facie speed limit be established on Paseo Avellano. This road follows
a relatively straight alignment with a slight curvilinear portion in the middle with centerline grades
ranging from approximately 1% to 7.65%. It is a short road, about 0.2 miles in length, and serves as
a local collector road. Parking is allowed on both sides of the road, and it has been constructed to
City standards with curb, gutter, sidewalk, and streetlights. It has a curb-to-curb width of 40 feet.
Referring to Exhibit 1, Mr. Johnson said that on Paseo Avellano there are currently no controls
established at the three intersecting streets. However, at Calle Barcelona, Paseo Avellano is
controlled with a stop sign and on the north end at Segovia Way, Paseo Avellano is controlled with a
stop sign.
Continuing, Mr. Johnson stated that traffic volumes on Paseo Avellano range from approximately
4,550 vehicles per day, which is the 24 hour ADT north of Calle Barcelona to approximately 2,850
vehicles south of Segovia Way. This particular road is used as a cut-through bypass in the
neighborhood to get from Segovia Way to Calle Barcelona. This was one of the reasons Ms. Garcia
asked for a prima facie speed limit to be established. There are no homes fronting on this particular
road.
Mr. Johnson explained that in order to establish the prima facie speed limit, staff completed an
Engineering and Traffic Survey for Paseo Avellano in conjunction with a speed survey. Staff found
that a critical speed of 3 1 miles per hour exists upon the roadway with the pace speed ranging from
24 miles per hour to 34 miles per hour. Ninety-one percent of the vehicles were in that pace speed,
the 1 0-mile per hour increment that has the highest number of vehicles. Fortunately, the collision
August 1,2005 Traffic Safety Commission Meeting Page 3
history on this road is very good, indicated by no reported collisions in the two-year period from
May 1,2003 to April 30,2005. The Traffic Safety Coordinating Committee reviewed the matter, and
it was recommended that a 30-mile per hour prima facie speed limit upon Paseo Avellano ftom Calle
Barcelona to Segovia Way be established.
DISCUSSION:
Commissioner Cress stated that in looking at the speed survey, the maximum speed recorded was 34
miles per hour indicating that drivers are traveling below 34 miles per hour. He asked if the 30-mile
per hour speed limit was worthwhile spending the money to put up stop signs if drivers are already
driving that speed.
Mr. Johnson agreed that occasionally a driver goes through at a speed much in excess of the 34 miles
per hour. The question that is often heard is what is the absolute speed limit for that particular
roadway? Being that it is a two-lane undivided road, there would be an absolute speed limit of 55
miles per hour that some drivers could drive on that street as long as they are in compliance with
basic speed law. It would present difficulties for the police department to enforce a speed of 40-45
miles per hour, as long as the driver is driving somewhat reasonable, because the absolute speed
limit would be 55 miles per hour. By establishing a 30-mile per hour prima facie speed limit it
indicates to all drivers what is a reasonable speed for that roadway taking into consideration that it is
not only the short segment of the roadway, but that there are three intersecting streets, it is in a
residential area, the road does not qualify as a residence district per the vehicle codes. However, the
road is located in a residential area. That implies that there would be vehicles crossing at the three
intersections, kids on bikes, and pedestrians on the roadway.
Commissioner Cress said that he noticed the survey was taken fiom 9 a.m. to 10 a.m. This could
mean that during the heavy traffic hours people are using Paseo Avellano as a shortcut between the
two main streets, and there could be higher speed trafEc at that time.
Mr. Johnson stated that speed surveys are conducted in the off-peak hours for obvious reasons, but it
could go both ways. In rush hour, conditions could be more congested, so drivers are going slow, or
perhaps they are in a hurry to get to work or school, and possibly may be going a little faster.
Nevertheless, it has been found that obtaining the speed survey during off-peak times is an accurate
and fair representation of what the prevailing speeds are on a particular roadway. For the most part,
30 miles per hour appears to be a reasonable prima facie speed limit to establish upon Paseo
Avellano based upon the results of the Engineering and Traffic Survey.
August 1,2005
MOTION:
ACTION:
VOTE:
AYES:
NOES:
ABSTAIN:
Traffic Safety Commission Meeting Page 4
Motion by Commissioner Cress, and duly seconded by Commissioner
Roney, to recommend that a prima facie speed limit of 30 miles per
hour be established upon Paseo Avellano from Calle Barcelona to
Segovia Way.
5-0-0
Dorsey, Gardner, Cress, Roney, Bradshaw
None
None
ITEM 6B: Establish a prima facie speed limit upon Poinsettia Lane from Black Rail Road
to Cassia Road.
Mr. Johnson stated that this item is a request to establish a prima facie speed limit on a portion of
Poinsettia Lane from Black Rail Road to Cassia Road. Poinsettia Lane is a designated major arterial
on the Circulation Element of the General Plan of the City of Carlsbad. It is a four-lane divided
roadway. The subject segment extends from Black Rail Road to Cassia Road. Except for a small
missing gap from Cassia Road to Skimmer Court, with the opening of Poinsettia Lane from Melrose
Drive to El Camino Real, Poinsettia Lane extends the entire length in the City from Carlsbad
Boulevard east to Melrose Drive. The exception is the missing link between Cassia Road and
Skimmer Court. That roadway segment will be built by a private development and is anticipated to
be completed in 3-5 years. When that occurs, there will be a complete link of Poinsettia Lane. Until
that time, Poinsettia Lane terminates at Cassia Road. Drivers use Cassia Road to El Camino Real to
proceed north or south.
Mr. Johnson stated that the segment being discussed does not currently have a prima facie speed
limit established. It is a four-lane divided roadway, which would have a 65-mile per hour absolute
speed limit. Referring to Exhibit 1, Mr. Johnson explained that from Black Rail Road westerly to
Paseo del Norte, Poinsettia Lane currently has a posted speed limit of 45 miles per hour. This subject
segment is recommended for a 45 mile per hour prima facie speed limit, which would extend that
existing speed zone to Cassia Road. Four lanes exist except for a short portion of Poinsettia Lane
between Ambrosia Lane and Cassia Road. One of the eastbound lanes was dropped because of a 90-
degree turn from Poinsettia Lane to Cassia Road or from Cassia Road to Poinsettia Lane. Otherwise,
the subject segment is a four-lane divided roadway. An all-way stop control at Black Rail Road is on
the westerly terminus of this speed zone and Ambrosia Lane is controlled with a trafic signal at the
four-leg intersection of Ambrosia Lane and Poinsettia Lane.
Mr. Johnson stated that Poinsettia Lane generally follows a straight alignment. There is one
horizontal curve in the middle portion of the road close to the easterly portion where the horizontal
curve radius exceeds the minimums for a major arterial roadway. Centerline grades vary from 4
percent on this segment up to approximately 6.32 percent. The ADT for this major arterial is very
low at this time. It is approximately 5,000 vehicles per day. The design range on a major arterial is
August 1,2005 TrafEc Safety Commission Meeting Page 5
20,000 to 40,000 vehicles per day. The current volumes are very low but will change some day when
the segment that is missing between Cassia Road and Skimmer Court is completed. The missing
segment is referred to as Poinsettia Lane Reach E. There have been no traffic collisions on this road
segment in the two-year period from May 1,2003 to April 30,2005.
Mr. Johnson explained that in establishing the prima facie speed limit, an Engineering and Traffic
Survey was conducted. Part of that was obtaining speed survey data. The critical speed was found to
be 49 miles per hour with a pace speed ranging between 42 to 52 miles per hour, and 8 1 percent of
the vehicles were found to be in the pace. The Trafic Safety Coordinating Committee also reviewed
this matter, and it was their recommendation that the existing 45-mile per hour prima facie speed
limit upon Poinsettia Lane be extended from Black Rail Road to Cassia Road.
DISCUSSION:
Vice-Chair Gardner stated thk she was unable to see what was at the comer of Ambrosia Lane and
Poinsettia Lane. It appears to be a new park and she wanted to know what the expected traffic
volumes might be.
Mr. Johnson explained that the new City park is called Aviara Community Park, which is under
construction. It will have ball fields, clubhouse facilities and other amenities for children, such as a
tot lot. Mr. Johnson stated that he did not have a projection for the number of vehicles with him. The
parking lot will have plenty of parking spaces. It is not a regional park so there is not a lot of volume
anticipated to use the short segment of Ambrosia Lane into the park. There is a driveway serving a
condominium complex located on the east side of Ambrosia Lane. High traffic or pedestrian
volumes are not expected to be generated because of the park.
MOTION:
ACTION: Motion by Vice-Chair Gardner, and duly seconded by Commissioner
Roney, to recommend that a prima facie speed limit of 45 miles per
hour be established upon Poinsettia Lane from Black Rail Road to
Cassia Road.
Dorsey, Gardner, Cress, Roney, Bradshaw
VOTE: 5-0-0
AYES:
NOES: None
ABSTAIN: None
ITEM 6C:
for Gordon Cress.
Consider adoption of a Traffic Safety Commission Resolution of Commendation
Mr. Johnson stated that over the years, this item has been initiated by the Traffic Safety Commission
to honor the former or outgoing Chair. At this point, Mr. Johnson turned this matter over to the
August 1,2005 Traffic Safety Commission Meeting Page 6
Commission for their disposition, noting a sample Commendation that has been provided in the staff
report.
DISCUSSION:
After some bantering back and forth, Chair Dorsey stated that he felt that the Commendation was
highly warranted.
MOTION:
ACTION: Motion by VicOChair Gardner, and duly seconded by Commissioner
Bradshaw, to adopt a Traffic Safety Commission Resolution of
Commendation for Gordon Cress for serving as Chair of the Traffic
Safety Commission.
VOTE: 4-0- 1
AYES: Dorsey, Gardner, Roney, Bradshaw
NOES: None
ABSTAIN: Cress
ITEM 7: REPORT FROM TWFIC SAFETY COMMISSIONERS
None.
ITEM 8: REPORT FROM TRAFFIC ENGINEER
Mr. Johnson reported that because the first Monday of September is Labor Day, next month's
regular meeting of the Traffic Safety Commission would be held on Septembex 12,2005 at 3:OO p.m.
in the City Council Chambers.
ADJOURNMENT:
Chair Dorsey adjourned the Regular Meeting of August 1,2005 at 3 : 19 p.m.
Respectfdly submitted,
Ruth Steckdaub
Minutes Clerk