Thoroughfare-AG040914T H E C I T Y • O F
AGENDA REQUEST F (__.M COPPELL
- o
DEPT gineering Department
DATE: September 14, 2004
ITEM #: 22
ITEM CAPTION:
Consider approval of an ordinance revising the Thoroughfare Plan to redesignate Riverchase Drive, from a 4 -lane
undivided collector street (C U) to a two -lane undivided collector street (C2U), in its entirety from MacArthur
Blvd. to Sandy Lake Rd.; and authorizing the Mayor to sign.
APPROVED BY Motion to Approve
Ord. # 2004 -1085
GOAL(S)
EXECUTIVE SUMMARY:
CITY COUNCIL
ON ABOVE
paq
M - York
S - Tunnell
Vote - 6 -0
Suhy absent
Approval of this ordinance will change Riverchase Drive, from a 4 -lane undivided collector street (C4U) to a 2-
lane undivided collector street (C2U), from MacArthur Blvd. to Sandy Lake Rd.
Staff recommends approval
FINANCIAL COMMENTS:
Agenda Request Form - Revised 02/04
C_
will be available to answer any questions at the council meeting.
Document Name: #ThoroughfarePlan -I AR
MEMORANDUM
FROM THE
DEPARTMENT OF ENGINEERING
i
To: Mayor and City Council
From: Kenneth M. Griffin, P.E., Director of Engineering/Public Works
Date: September 14, 2004
RE: Consider approval of an ordinance revising the Thoroughfare Plan to
redesignate Riverchase Drive from a 4 -lane undivided collector street (C4U)
to a 2-lane undivided collector street (C2U) in its entirety from MacArthur
Blvd. t Sandy Lake Rd.; and authorizing the Mayor to sign.
Periodically, the Cit has received complaints from citizens concerning Riverchase Dr.
Typically, the compla t is related to cars passing on the right side of a vehicle traveling at the
speed limit.
The City's current Thoroughfare Plan shows Riverchase Dr. to be a C4U, which is a four -lane
undivided collector street. Because of that designation, Riverchase Dr. was constructed as a 45-
foot wide roadway. Because traffic has not warranted the 4- lanes, the City has not previously
striped the 4 -lanes and,has only provided a centerline.
Because of the compla nts received, I instructed the Street Department to stripe Riverchase Dr. as
a four -lane undivided collector street as called for in the City's current Thoroughfare Plan. It was
my opinion at the time that this would be the safest way to resolve the complaints received
concerning vehicles passing on the right.
Once the Street Department began laying out the pattern for the buttons to convert Riverchase
Dr. from two lanes to four lanes, I received numerous a -mails concerning the "widening" of
Riverchase Dr. Because volume was not driving the conversation of Riverchase Dr. to four
lanes, I stepped back from the situation to evaluate the need for four lanes verses two lanes.
Our Thoroughfare Plaii states that a two -lane collector street typically is designed to carry up to
10,000 vehicles per day and that a four -lane undivided collector street is designed to carry
between 10,000 and 20,000 vehicles per day. The area surrounding Riverchase Dr. is currently
built -out and our most recent traffic counts show approximately 2400 vehicles a day on the
roadway. That could f uctuate; however, it is my opinion that it is highly unlikely that we would
ever have a situation where you had 10,000 or more vehicles on the roadway during a 24 -hour
period.
Once I arrived at th conclusion that Riverchase Dr. did not need to be four lanes to
accommodate traffic, I attempted to come up with some solution so that it was very clear that
'rCITY OF COPPELL, ENGINEERING - EXCELLENCE BY DESIGN"
there is only one lane in each direction. If the City did nothing you would still have two 22 -' /2
foot wide lanes and you would still have the potential for vehicles to pass on the right. Also the
wider roadway lends it self to higher speeds.
After my evaluation, it's my recommendation that the designation of Riverchase Dr. be changed
in the Thoroughfare Pan from C4U to C2U. Because 45 foot wide is too wide for a C2U, my
further recommendati n is that instead of providing striping to establish a 3rd and 4th lane, that
we provided striping approximately 7 feet off the face of the curb to provide a buffer zone from
the vehicles to the Sid walk area. This buffer zone could also be utilized for bicyclists or joggers
in the area.
By creating the buffer zone adjacent to the curb approximately 7 foot width, we would in effect,
reduce the driving are of Riverchase Dr. to approximately 30 feet. This is more in line with a
residential width street and /or a 2 -lane collector street.
Staff recommends ap roval of the revision to the current Thoroughfare Plan to redesignate
Riverchase Drive froin a four -lane undivided collector street (C4U) to a two -lane undivided
collector street (C2U) in its entirety from MacArthur Blvd. to Sandy Lake Rd. Staff will be
available to answer any questions at the council meeting.
"CITY OF COPPELL ENGINEERING - EXCELLENCE BY DESIGN"
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CURRENT DESIGNATION: C 4U ;
at PROPOSED DESIGNATION: C21-1
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Riverchase Drive
Proposed Redesignation
City of Coppell
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.' Created in G.Z.S.
4 ` SAScothArc View \misc_ exhibits apr\Riverchase C2U
AN RDINANCE OF THE CITY OF COPPELL, TEXAS
ORDINANCE NO.
AN ORDIN CE OF THE CITY OF COPPELL, TEXAS, AMENDING
THE COPPELL CODE OF ORDINANCES, ARTICLE 15 -9 -1 TO
CHANGE THE ROADWAY CLASSIFICATION OF RIVERCHASE
DRIVE IN ITS ENTIRETY FROM A UNDIVIDED FOUR LANE
COLLECTO (C4U) CLASSIFICATION TO A TWO LANE
COLLECTO (C2U) CLASSIFICATION; PROVIDING A REPEALING
CLAUSE; P OVIDING A SEVERABILITY CLAUSE; PROVIDING A
PENALTY O FINE NOT TO EXCEED THE SUM OF TWO THOUSAND
DOLLARS( ,000.00) FOR EACH OFFENSE; AND PROVIDING FOR AN
EFFECTIVE DATE.
NOW, THEREFORE, BE IT ORDAINED BY THE CITY COUNCIL OF THE
CITY OF COPPELL. TEXAS:
SECTION 1. That the Coppell Code of Ordinances, Article 15 -9 -1, Coppell
Thoroughfare Plan, bo, and the same is, hereby amended by changing the roadway classification
of Riverchase Drive, at its point of intersection with MacArthur Boulevard east and northward to
its point of intersection with Sandy Lake Road, from a C4U to a C2U.
SECTION 2. All provisions of the ordinances of the City of Coppell in conflict with the
provisions of this ordinance be, and the same are hereby, repealed, and all other provisions of the
ordinances of the Cit� of Coppell not in conflict with the provisions of this ordinance shall
remain in full force and effect.
SECTION 3. IShould any sentence, paragraph, subdivision, clause, phrase or section of
this ordinance be adj4dged or held to be unconstitutional, illegal or invalid, the same shall not
affect the validity of his ordinance as a whole, or any part or provision thereof other than the
part so decided to be invalid, illegal or unconstitutional, and shall not affect the validity of the
Code of Ordinances of the City of Coppell, Texas.
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SECTION 4. That this ordinance shall take effect immediately from and after its
passage and publicati n, as the law and charter in such cases provide.
DULY PASSED by the City Council of the City of Coppell, Texas, this day of
LIM
LAS N. STOVER, MAYOR
ATTEST:
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cj)��
LIBBY B6L, CITY SECRETARY
APPROVED AS TQ FORM:
ROBERT E. "AGER, CITY ATTORNEY
(REH/c 09/10/04)
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