Item 4E
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ME M O R A N D U M
(June 2, 2015)
To:Shana Yelverton, City Manager
From:Robert H. Price, P.E., Public Works Director
James Brandon, Chief of Police
Cheryl Taylor, P.E., City Engineer
st
Subject:Ordinance No. 1043A,1Reading, Approve a Speed
Limit Ordinance Amending Chapter 18, Section 18-79of
the Southlake City Code establishing a new speed limit
onaportion of North Kimball Avenue
Action
st
Requested:
OrdinanceNo. 1043A, 1Reading, Approve a Speed Limit
Ordinance Amending Chapter 18, Section 18-79 of the
Southlake City Code establishing a new speed limit on a
portion of North Kimball Avenue
Background
Information:
North Kimball Avenue from State Highway 114 to East Dove
Roadwas recently widened from a 2 lane undivided roadway
to a four-lane divided arterial roadway.
At the completion of the widening of North Kimball Avenue
from SH114 to East Dove Road, aspeed zone study was
performed. Based upon standard engineering design
guidelines, the posted speed limit of a roadway is based
th
upon the 85percentile of speed data collected during a
speed study of the roadway in question.
The City’s consultant is recommending a 40 mile per hour
speed limit based on the data collected and TxDOT
Procedures for Establishing Speed Zones.The purpose of
Ordinance No. 1043Ais to establisha speed limit that is
appropriate foran arterial roadway.
Staff recommendsa speed limit of 40miles per hour on
North Kimball Avenuefrom State Highway 114 toEast Dove
Road.City staff has met with the City of Grapevine Public
Works officials and they concurwith the recommendation of
40 mph.The Police Department concurs with the
recommendation of 40 mph.
Financial
Considerations:
None
Strategic Link:
The ordinance establishing a new speed limit on North
Kimball Avenuelinksto the City’s strategy map relative to
the focus areas of Safety and Securityand Mobility.The
specific corporate objectives that are met by this ordinance
include: Achieve the highest standards of safety and security
andprovide travel convenience within city and region.
Citizen Input/
Board Review:
None
Legal Review:
None
Alternatives:
The City Council may approve or deny Ordinance No. 1043A
Supporting
Documents:
Ordinance No. 1043A
Location Map
Kimball Avenue Speed Zoning Study
Staff
st
Recommendation:
Ordinance No. 1043A, 1Reading, Approve a Speed Limit
Ordinance Amending Chapter 18, Section 18-79 of the
Southlake City Code establishing a new speed limit on a
portion of North Kimball Avenue
StaffContact:
Robert H. Price, P.E., Public Works Director
Cheryl C. Taylor, P.E., Deputy Director Public Works
Steven D. Anderson,P.E., CFM, Civil Engineer
ORDINANCE NO. 1043A
AN ORDINANCE AMENDING CHAPTER 18, SECTION 18-79 OF THE
SOUTHLAKE CITY CODE TO ESTABLISH A NEW SPEED LIMIT ON A
PORTION OF NORTH KIMBALL AVENUE WITHIN THE CITY OF
SOUTHLAKE; DIRECTING THE DIRECTOR OF PUBLIC WORKS TO
POST APPROPRIATE SIGNS; PROVIDING THAT THIS ORDINANCE
SHALL BE CUMULATIVE OF ALL ORDINANCES; PROVIDING A
SEVERABILITY CLAUSE; PROVIDING FOR A PENALTY FOR
VIOLATIONS HEREOF; PROVIDING A SAVINGS CLAUSE;
PROVIDING FOR PUBLICATION IN THE OFFICIAL NEWSPAPER;
AND PROVIDING AN EFFECTIVE DATE.
WHEREAS,
the City of Southlake, Texas is a home rule city acting under its
charter adopted by the electorate pursuant to Article XI, Section 5 of the Texas
Constitution and Chapter 9 of the Local Government Code; and
WHEREAS,
Section 545.356 of the Texas Transportation Code grants the City of
Southlake, Texas the authority to establish prima facie minimum reasonable and
prudent speeds within its corporate boundaries for vehicles on streets and highways;
and
WHEREAS,
the Director of Public Works has conducted an engineering and
traffic investigation and study to determine a prima facie maximum speed limit which is
reasonable and safe on the roadways within the city limits of Southlake that are the
subject of this ordinance; and
WHEREAS,
in accordance with the engineering and traffic investigation and
study, the City Council desires to adopt this ordinance setting prima facie maximum
speed limits on these roadways within the City of Southlake; and
WHEREAS,
the prima facie maximum reasonable speed limits adopted herein
are not in conflict with any order of the Texas Transportation Commission declaring
speed limits along any roadways within the city limits of Southlake.
NOW, THEREFORE, BE IT ORDAINED BY THE CITY COUNCIL OF THE CITY
OF SOUTHLAKE, TEXAS:
SECTION 1.
Chapter 18, Section 18-79 of the Southlake City Code is hereby amended by
establishing the prima facie maximum reasonable and prudent speed for travel on the
portions of the streets or highways designated below, which shall be the speed in miles
per hour (mph) designated below, provided that an appropriate sign giving notice
thereof is erected:
STREET SPEED LIMIT (mph)
North Kimball Avenue from State Highway 40
114 to Dove Road
SECTION 2.
The Director of Public Works is hereby directed to ensure that appropriate signs
are erected and maintained giving notice of adopted speed limits.
SECTION 3.
This ordinance shall be cumulative of all provisions of ordinances of the City of
Southlake, Texas, except where the provisions of this ordinance are in direct conflict
with the provisions of such ordinances, in which event the conflicting provisions of such
ordinances are hereby repealed.
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SECTION 4.
It is hereby declared to be the intention of the City Council that the phrases,
clauses, sentences, paragraphs and sections of this ordinance are severable, and if any
phrase, clause, sentence, paragraph or section of this ordinance shall be declared
unconstitutional by the valid judgment or decree of any court of competent jurisdiction,
such unconstitutionality shall not affect any of the remaining phrases, clauses,
sentences, paragraphs and sections of this ordinance, since the same would have been
enacted by the City Council without the incorporation in this ordinance of any such
unconstitutional phrase, clause, sentence, paragraph or section.
SECTION 5.
Any person, firm or corporation who violates, disobeys, omits, neglects or refuses
to comply with or who resists the enforcement of any of the provisions of this ordinance
shall be fined not more than Two Hundred Dollars ($200.00) for each offense. Each
day that a violation is permitted to exist shall constitute a separate offense.
SECTION 6.
All rights and remedies of the City of Southlake are expressly saved as to any
and all violations of the provisions of the Southlake City Code or any other ordinances
affecting prima facie speed limits on roadways within the city limits which have accrued
at the time of the effective date of this ordinance; and, as to such accrued violations and
all pending litigation, both civil and criminal, whether pending in court or not, under such
ordinances, same shall not be affected by this ordinance but may be prosecuted until
final disposition by the courts.
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SECTION 7.
The City Secretary of the City of Southlake is hereby directed to publish the
proposed ordinance or its caption and penalty together with a notice setting out the time
and place for a public hearing thereon at least ten (10) days before the second reading
of this ordinance, and if this ordinance provides for the imposition of any penalty, fine or
forfeiture for any violation of any of its provisions, then the City Secretary shall
additionally publish this ordinance in the official City newspaper one time within ten (10)
days after passage of this ordinance, as required by Section 3.13 of the Charter of the
City of Southlake.
SECTION 8.
This ordinance shall be in full force and effect from and after its passage and
publication as required by law, and it is so ordained.
PASSED AND APPROVED ON FIRST READING ON THIS ______ DAY OF
_______________, 2015.
_____________________________________
Mayor, Laura Hill
ATTEST:
_____________________________________
City Secretary, Lori Payne
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PASSED AND APPROVED ON SECOND READING ON THIS ______ DAY OF
_______________, 2015.
_____________________________________
Mayor, Laura Hill
ATTEST:
_____________________________________
City Secretary, Lori Payne
EFFECTIVE DATE: ____________________________
________________________________
APPROVED AS TO FORM AND LEGALITY:
City Attorney
5
40 mph
LOCATION MAP
Table 3:Spot Speed Study Results
Direction Location Total 15th so'h 85th [Median Mode
Vehicles Percentile Percentile Percentile
NB 250'south of Utility 147 34 37 42 37 35
SB Station driveway 165 35 37 40 37 36
NS 153 34 37 41 37 36
At Cripple Creek Tr.
SB 1 1 165 35 38 42 38 39
TxDOT Procedures for Estoblishing Speed Zones indicate that the speed limit for a section of roadway should
be set based upon the 851h percentile spot speed rounded to the nearest 5 mph increment. For instance, a
speed limit established based on an 85th percentile speed of 39 would typically be 40 mph. tither factors
such as the roadway geometric constraints, driveway density, pedestrian activity, development density and
crash history can be used to establish a speed zone at a speed lower than the rounded 85' percentile value.
CRASH DATA
Seven reported crashes were available for review as part of this project. The crashes available for review do
not indicate a need to lower speed limits below the 851h percentile data. The entire four lane roadway section
is open to traffic between E. Dove Road and SH 114 and crashes should be monitored for any changes.
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RECOMMENDATION
The spot speed data collected indicate that the existing 851h percentile speeds along N. Kimball Ave support
the posting of a 40 mph speed limit at all data collection locations.
Based on our review of collected speed data, available crash data, and the roadway design plans, Lee
Engineering recommends that the speed limit be set at 40 mph along N. Kimball Ave from the State Highway
114 frontage road north to E. Dove Road.
If you have any questions about this letter, please feel free to call me at your convenience at 972.248.3006.
Sincerely, J47'
I /
Jo/ph Short, P.E., PTOE
President
Lee Engineering
TBPE Firm F-450
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