HomeMy WebLinkAbout2015-11-02; Traffic Safety Commission; ; Prohibit parking on Black Rail CourtCITY OF CARLSBAD
TRAFFIC SAFETY COMMISSION
STAFF REPORT
COMMISSION MEETING OF: November 2, 2015 ITEM NO. 6A
LOCATION: Black Rail Court
INITIATED BY: Patrick S. Campbell
Community Association Manager
Aviara Point Homeowners Association
REQUESTED ACTION: Prohibit parking on Black Rail Court
BACKGROUND:
DATA:
Staff was contacted by Mr. Campbell via email to request that on-street parking on Black
Rail Court be prohibited due to safety issues. At approximately the same time, staff
received a similar request from Victoria Tijerina, representing the Aviara Master
Association.
Black Rail Court is a residential collector street in the southwest portion of the city
known as Aviara (see Exhibit 1). It is a short cul-de-sac street that serves to connect
three gated residential developments (Viaggio, Aviara Point and Marea) to Aviara
Parkway. Black Rail Court is approximately 600 feet in length and has a curb-to-curb
width of 40 feet. The roadway is fully improved with curb, gutter, and sidewalk on both
sides of the street. Parking is allowed on both sides of the street. The roadway is
curved and features a centerline radius of 300 feet, which is appropriate, based on the
City of Carlsbad Street Design Criteria (see Exhibit 2), for a collector street. The grade on
Black Rail Court is approximately 6 percent.
As part of a past request, sight distance at the intersection of Black Rail Court and
Surfbird Circle was evaluated in 2010 and resulted in the painting of 40' of red curb on
the southeast corner. Similarly, sight distance at the intersection of Black Rail Court and
Aviara Drive was evaluated in 2011 and resulted in the painting of 25' of red curb on the
southwest corner.
Based on the most recent request, staff conducted a new field review of Black Rail Court
and did not find any operational or safety issue associated with the presence of parked
cars on Black Rail Court. Sight distance was found to be adequate from all of the
intersecting streets. The roadway width of 40 feet curb to curb was designed to
accommodate parking on both sides of the street.
Page 1
COMMISSION MEETING OF:
(continued)
CITY OF CARLSBAD
TRAFFIC SAFETY COMMISSION
STAFF REPORT
November 2, 2015 ITEM NO. 6A
Collision records show that there have been zero reported collisions on Black Rail Court
between Aviara Parkway and its western terminus at Tatler Road in the t ime period
between January 1, 2008 and September 30, 2015.
Since the request specifically mentioned concerns about emergency vehicle access, the
Fire Department was contacted. Dominic Fieri, Fire Prevention Specialist II, informed us
that the Fire Department had investigated these specific concerns and had found no
issues with emergency vehicle access or operations on Black Rail Court due to the
parked cars.
RECOMMENDATION:
Ba sed on the staff findings, the Traffic Safety Coordinating Committee recommends
that:
• The request for the prohibition of parking on Black Rail Court between Aviara
Parkway and Tatler Road not be supported at this time.
• Double yellow centerline striping be painted on Black Rail Court between Aviara
Parkway and Aviara Drive to encourage drivers to stay on the right hand side of
the roadway.
NECESSARY CITY COUNCIL ACTION:
No City Council action required.
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TABLE A
CITY OF CARLSBAD
STREET DESIGN CRITERIA
DESIGN CLASSIFICATION
ANTICIPATED ADT RANGES
Deslcm Soeed
Minimum Spacing of Intersections
(including right-tum in/out) (in feet)
Right-of-Way Width (in feet)
Private Access to Adjoining Property
Curb-to-Curb Distance (in feet)
Minimum Traffic Index
Minimum structural Section
0n inches) <6>
StoooinQ SiQht Distance 151 !in feet)
Corner Sight Distance 19> (in feet)
Minimum Centerline Radius (in feetl
Maximum Centerline Grade (not
thru intersec. )<•>
Minimum Flowline Grade
NOTES:
(1)N.A.
PRIME
ARTERIAL
40,000OR
MORE
60MPH
2,600
126
None
106
(18' median)
9
6AC
6AB
580
660
2,400(6)
7%
1.0%
MAJOR
ARTERIAL
20,000TO
40,000
50MPH
1,200
102
None
82
(18' median)
8.5
5AC
6 AB
430
550
1,400 (S)
7%
1.0%
(2lRedudion to 100' with approval of City Engineer.
<3>Grades greater than 10% will require specific approval, chip seal, etc.
<4>Not to exceed 6% thru intersections. Local, cul-de-sac and hillside may
SECONDARY
ARTERIAL
10,000TO
20,000
40 MPH
600
84
Where no
other access
is possible
64
8.0
4AC
6AB
300
440
670
10%
1.0%"
increase grade thro1!9h intersections up to 8%, provided that CAL TRANS
f.uidelines for sight distance and vertical curves are complied with.
<5 Stopping Sight Distance per CALTRANS Highway Design Manual Topic 201
and Volume 3 Section 8 in Chapter 3 of City Standards.
(6) Assumes no superelevatlons; includes standard crossfall.
(7)Minimum grade of 2.0% is encouraged. If 1.0% minimum is not possible,
special construction may be used with City Engineer approval. Gutler
line of cul-de-sac bulbs and knuckles shall have minimum grade of 1.0%.
COLLECTOR INDUSTRIAL LOCAL CUL-DE-SAC HILLSIDE
STREET STREET STREET STREET ALLEY STREET
2,000 TO -20TO 20TO
10,000 2,000 1000 --
30MPH 30MPH 25 MPH 25MPH -20MPH
300 300 15o r s 15ors -150
others others
200 200
60 or68 72 60/681") 56(12l/60/68<11> 24 64
Limited subject Limited subject O.K. O.K. O.K. Limited subject
to approval
40 or 48
6.0
4 AC
6AB
200
330
300
12%(3)
1.0%
to approval
52 34142<11> 35<12'/40/42<11>
7.0 5.0 4.5
4AC 4AC 4AC
6AB 4AB<'Ol 4AB(IO)
200 150 150
330 275 275
300 200 200
8% 12%<10l 12%(10)
1.0% 1.0% 1.0%
Typical centerline grades at the upper reach of cul-de-sacs shall
be 2% minimum.
24
4.0
5-1/2"
PCC <l!J
-
--
-
-··
1.0%
(B)Alley sections shall conform to SDRSD G-21.
<9>comer Sight Distance per Caltrans Highway Design manual Topic 405
and Volume 3 Section 8 in Chapter 3 of Cily Standards.
(10) PCC pavement required for grades over 10%
to approval
42
5.0
4AC
4 ABl10l
125(2)
220
200
15%11Cl
1.0%
(11) 28-foot clear travel way required where adjacent lots contain any portion of a Fire Hazard
Zone/Fire Suppression Zone within the property line.
(12) 36-foot curb-to-curb distance permissible when serving 24 or fewer lots and where adjacent
lots do not contain any portion of a Fire Hazard Zone/Fire Suppression Zone within the
property line.
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EXHIBIT2