ST9304-CS 971230 G P.O. Box 478
Coppell, Texas 75019
The City With A Beautiful Future 214-462-0022
December 30, 1997
Sam Wilson
Asst. Director of Public Works/Transportation
City of Dallas
1500 Marilia
Dallas, Texas 75201
RE: Traffic Signal at Moore Road/Belt Line Road Intersection / ST 93-04
Dear Mr. Wilson:
Thank you for taking the time to discuss the existing span wire traffic light at the intersection of
Moore Road and Belt Line Road with me. It is now my understanding that Dallas will be
performing warrant studies to determine the appropriateness of the traffic light. One thing
mentioned during the telephone call that concerned me was your impression that the light was a
flashing light and not a full traffic signal. You expressed some concern about there being an
unwarranted traffic signal within the City of Dallas. Included with this letter is correspondence
from the mid-1980's concerning this traffic signal. The initial information dated July 31, 1986 is
from Wayne Ginn, consultant for the City of Coppell for the traffic signal. Included with that
letter was a warrant study that showed that the peak hour had been met for the installation of the
traffic signal. Your response on August 8, 1986 authorized the City to maintain the signal until
the construction of Moore Road was completed and to provide additional information to the City
after the completion of Moore Road. On October 5, 1987, additional information was provided
to you from Alan Ratlift, City Manager of the City of Coppell that included the information
requested in your August 8, 1986 letter. Again, the warrant study showed that the traffic light
was warranted. Our records do not indicate any follow-up correspondence from your office to
the City of Coppell after October 5, 1987. Therefore, it has been our understanding that the City
of Dallas concurred with the warrant study and the installation of the traffic light at Moore Road
and Belt Line Road.
I hope this information has been helpful to alleviate your concerns that there is an unwarranted
traffic signal within the City of Dallas and I look forward to hearing from you in the near future
when Dallas has completed an additional warrant study at this intersection.
Again thank you for your consideration of this matter and if you should have any questions please
feel free to contact me at your convenience.
Sincerely, ,~,~.
Kn~neth&~. Griffin, P.E.
Director of Engineering and Public Works
GINN, INC. CONSULTING ENGINEERS
? -~ --~
Mr. Sam Wilson
City Hall
1500 Marilla, Room #L1BN
Dallas, Texas 75201
Attention: Mr. Jack Antebi ~/~ ~'~'~
Re: Traffic Signal at the Moore Road/Belt Li~'~ ~¢intersection
Ro
Dear Mr. Wilson:
Enclosed is a copy of the traffic signal study that warranted
the signal installed at the above referenced intersection.
After the City of Coppell determined that a traffic signal was
warranted at the intersection in May 1984, the City used their
own funds to install the signal because we understood that
Dallas would not fund the installation costs.
Since 1984 the land development and traffic volumes generated by
that development have increased enormously. The fact that Moore
Road is currently the only north/south thoroughfare in the
residential area until Mockingbird Lane or MacArthur Boulevard
is completed, we see this signal as vital to the needs of
Coppell in order to move traffic .smoothly during the peak hours.
On b~half of the City of Coppell, we respectfully request that
this signal not be removed until the matter can be thoroughly
discussed between the two cities.
After your further consideration, please advise our office
of your determination on this matter so that we may inform the
Coppell City Council, who can in turn properly inform their
citizens. Also, please furnish a copy of your traffic warrant
study so ~hat we may compare it with our study.
Thank you for your attention in this matter.
H. Wayne Ginn, P.E.
KP/HWG/sr
Enclosure
cc: Mayor Lou Duggan
Frank Proctor, City Manager
Ed Powell, City Engineer
La~ ~acksOn, City Attorney
I~tAFFIC .~J_G__NAL WARRANT STUDY
at.
L-4_O_ORE ROAD_ BELTLINE ROAD_
LOCATION:
The intersection of Beltline Rosd 8nd Moore Rosd is 8t the south end of Moore Rosd
8t the boundsry between the City of Coppell 8nd the City of DsIlss. Both Beltline
Rosd 8nd Moore Rosd 8re two 18he, two-wsy rosdwsys. Beltline rosd hss one 18ne
8pprosches to the intersection from both the esst 8nd the west. Moore Road hss
8 one 18he 8pprosch to the intersection southbound.
TRAFFIC VOLUME DATA:
A msnusI count wss conducted at the Moore Road-Beltline Road intersection during
both the AM and PM pesk periods. The results of thst count are given below.
BFLTLINE ROAD MOORE ROAD
WB EB TOTAL SB
6:00 AR4
15 10 16 26 18
30 18 30 48 37
45 32 51 83 54
7:00 AlL1 25 62 87 ~44 65 17zt
15 36 68 104 119
30 42 69 111 131
45 62 64 126 170
8:00 AM 43 82 125 466 122 542
15 52 47 99 105
30 51 54 105 75
45 38 48 86 53
9:00 AM 34 27 61 351 46 279
4:00 PM
15 96 48 144 14
30 86 51 137 21
45 -89 55 144 25
5:00 PM 121 51 172 597 27 87
15 146 58 204 30
30 154 66 220 26
45 133 59 192 14
6:00 PM 157 74 231 847 35 105
15 120 54 17z~ 25
30 101 41 142 30
45 92 47 139 27
7:00 PM 92 33 125 580 24 10.6..
Traffic Signal Warrant Study
Moore Rd/Beltline Rd
Page -2-
SIGNAl WARRANT ANALYSIS:
The traffic volume data was applied to the Traffic Signal Warrants given in the
Manual on Uniform Traffic Control Devices published by the U. S. Department of
Transportation. In order to have a signal installed, an intersection must satisfy
at least one of the signal warrants. The warrants are listed below:
WARRANT # TITLE
1 Minimum Vehicular Volume
2 Interruption of Continuous Flow ·
3 Minimum Pedestrian Volume
q School Crossings
5 Progressive Movement
6 Accident Experience
7 Systems
8 Combination Qf Warrants
9 Four Hour Volumes
10 Peak Hour Delay
11 Peak Hour Volume
RFSUI T- CONC! USION:
The Peak Hour Volume Warrant is met at the Moore Road-Beltline Road intersection
during the 7:00-8:00 AM hour. Therefore, a signal may be installed.
RECEIVED AU6 14 1986
CITY OF DALLAS
AuguSt 8, ]986
Mr. H. Wayne Ginn, P. E.
Ginn, Inc. Consulting Engineers
16135 Preston Road
Suite 106
Dal 1 as, Texas 75248
Re: Traffic Signal at the Moore Road/Belt Line Road Intersection
Dear Mr. Ginn:
In response to your letter dated july 31, 1986, the Department of
Transportation offers the following comments.
In reviewing our files, we can find no records indicating that a
formal request for a traffic signal at the aforementioned intersection
was received by the City.
The study that you submitted indicates that the traffic signal was
warranted at the time of installation, and since Moore Road at the
present tin~ is under construction, we will authorize the City of
Coppell to maintain the traffic signals in good operating condition
until construction on Moore Road is completed. The signal must
conform to the guidelines established in the Texas Manual on Uniform
Traffic Control Devices For Streets And Highways.
Once the construction on Moore Road is completed, the City of Coppell
must submit a formal request to the City of Dallas, Department of
Transportation, with traffic volume counts and any accident history at
the intersection so we can evaluate the need for signalization.
If you should need any further information, please contact Jack Antebi
at 670-3267.
Department of Transportati on
JA/je
cc: Doug Conner, Administrative Assistant City Attorney Mark Ferraro, Risk Management
Frank Proctor, Coppell City Manager
DEI:,ARTNIIENT CII: TFIANSII:~)I~TATIO N r--v .~. , 7*A. _ AS TEXA.r" "~.')" ?ELEP~ONE 2~4
GINN, INC. CONSt TINf > NG1.NEER
AUgUSt 11, 1987
Alan D. Ratliff, City Manager
Coppell Texas 75019
Re: Signalization at Moore/Belt Line Intersection
Dear Mr. Ratliff:
Enclosed is backup information regarding the above referenced
location that is in the City of Dallas City Limits.
Per the August 8, 1986 correspondence from Dallas regarding the
signalization at this intersection, they agreed to allow the
signal to remain until the completion of the Moore Road
construction. At this time, since the construction has been
completed, the City of Dallas requires a new traffic signal
warrant study be performed and provided to them for their review
and consideration. Also, they want any accident history records
for this location.
We request Chief Griffin submit to our office any accident
history records at this time. Additionally, we are proceeding
with the signal study. After we have compiled the necessary
submittal package for the City of Dallas, we shall submit the
material to you along with a cover letter to Dallas, prepared for
your signature, that formally requests the signal to remain at
this location.
We anticipate the study to be completed by September 1, 1987. We
shall keep you advised on our progress.
Sincerely,
H. Wayne Ginn, P.E.
KP/HWG/jc
cc: Chief Tom Griffin, Police
Steve Goram, Director of Public Works
AR804/TFC
17103 Preston Road · Suite 100 · LB 118 · Dallas, Texas75248 · Phone 214/248-4900
GINN, INC. CONSULTING ENGINEERS
August 18, 1986
Mr. Sam L. Wilson, Assistant Director
\
City of Dallas \,
Department of Transportation
City Hall
Dallas, TX 75201
Re: Traffic Signal at Moore Road/Belt Line Road Intersection
Dear Mr. Wilson:
We are in receipt of your August 8, 1986 letter regarding the
above referenced subject.
When the construction on Moore Road is completed, the City of
Coppell will submit a formal request to the City of Dallas for a
permanent traffic signal installation at the intersection.
Thank you for your timely response.
Sincerely,
H. Wayne Ginn, P.E.
/st
cc: Mayor Duggan
Ed Powell
LTIN
GINN, INC. CONSU G ENGINEERS,
October 5, 1987
Alan D. Ratliff, City Manager
City of Coppell
P.O. Box 478 ~ '~'%/J' 5~L~T" ~'~'
Coppell, TX 75019
Re: Traffic Signal at the Moore Road/Belt Line Roa~ ~ntersection
Dear Mr. Ratliff:
Enclosed is a cover letter prepared for your signature regarding
the above referenced subject.
The letter is a formal request to the City of Dallas to allow the
Moore Road/Belt Line Road traffic signal to remain in operation.
Since this intersection is technically in the City of Dallas, a
formal request by the City of Coppell was required per a letter
dated August S, 1986 from their Department of Transportation.
Please recall our letter to you dated August 11, 1987 which
provided you history and copies of all correspondence to date on
this issue. The City of Dallas requires accident history
information be provided to them along with a traffic signal
warrant study. Please have the Police Department furnish accident
history information to accompany this letter. The signal warrant
study is enclosed (2 copies) and should be sent with the cover
letter prepared for your signature to the City of Dallas along
with any accident history. Xf no accident history exists, the
cover letter needs to be revised to indicate no accident history
records are included with the submittal.
Please call if we may be of further assistance to you on this
matter.
Sincerely, .
Keyin
KP/dsp
cc: H. Wayne Ginn
Chief Tom Griffin, Police
Steve Goram, Director of Public Works
File 280-030
17103 Preston Road · Suite 100 · LB 118 · Dallas, Texas75248 · Phone 214/248-4900
-,- FILE COP
Oc~obe~ 5,
Mr. Sam Wilson
City of Dallas
Department of Transportation
City Hall
1500 Marilla, Room #LiBN
Dallas, TX 75201
Re: Traffic Signal at the Moore Road/Belt Line Road Intersection
Dear Mr. Wilson:
Pursuant to your letter dated August 8, 1986 regarding the above
referenced subject, we respectfully submit our formal request to
the City of Dallas for the signalization to remain in operation
at this location.
Consistent with your. directions outlined in the aforementioned
correspondence, we have enclosed two copies of a recent traffic
signal warrant study and the accident history for this
intersection. The study shows that signalization of this
intersection is warranted.
The signals currently in operation at this location were funded
and installed by the City of Coppell. We would be happy to
continue the operation and maintenance of the signals if you will
permit our City to do so.
The citizens and city council of Coppell greatly appreciate your
consideration and positive efforts on this matter.
We look forward to hearing from you soon.
Sincerely, ~ /-
Alan D. Ratliff ,, /
/dsp
cc:Mayor Lou Duggan and Council Members
H. Wayne Ginn, P.E., City Engineer
FOR VA DED TO
MAYOB
DATE:
Traffic Signal Warrant Study
at
Beltline Road and Moore Road
Location:
The intersection of Beltline Road and Moore Road is at the south end of Moore Road at the
boundary between the City of Coppall and the City of Dallas. Both Beltline and Moore Road are
two lane two way roadways. Beltline Road has one lane approaches to the intersection from
both the east and the west. Moore Road has a two lane approach to the intersection south
Traffic Volume Data:
A manual traffic volume count was conducted at the Beltline Road-Moore Road intersection
during the AM and PM and noontime peak traffic pedods. The count was conducted on
Wednesday August 19th 1987. The results of the traffic count are given below.
Beltline Road Moore Road
WB EB Total SB
6:30 AM
6:45 18 23 41 69
7:00 37 38 75 87
7:15 34 42 76 131
7.30 33 45 78 270 191 478
7:45 AM 49 56 105 197
8:00 46 57 103 177
8:15 59 38 97 168
8:30 43 46 89 394 109 651
8:45 AM 26 33 59 93
9.-00 34 35 59 60
9:15 42 24 66 42
9:30 26 21 47 241 38 233
11:00 AM
11:15 34 31 65 26
11 '.~ 44 49 93 38
11:45 43 40 83 35
12:~ 42 37 79 320 30 129
12:15 PM 54 39 93 30
12:30 51 34 65 42
12:45 56 46 102 37
1:00 35 30 65 345 45 154
4:00 PM
4:15 109 32 141 23
4:30 75 40 115 21
4:45 83 3 3 116 24
5:00 138 55 193 565 37 105
5:15 PM 153 68 221 20 '
5:30 174 74 248 23
5:45 174 73 247 36
6:00 157 56 213 929 43 122
6:15 PM 164 70 234 34
6:30 104 48 152 35
6:45 95 39 1 34 30
7:00 69 28 97 617 47 146
Radar Study Data:
A radar study was done on Wednesday August 19th, 1987 in order to determine the approach
speed of traffic on Beltline Road. The results of the radar study are shown on the attached
tabulation sheet. The 85th percentlie speed was found to the 50 MPH. Therefore the reduced
criteria are used for warrants # 1 and # 2. In the case of the # 9 warrant the "rural" curves
way be used.
Signal Warrant Analysis:
The traffic volume data was applied to the Traffic Signal Warrants as given in the Texas
Manual on uniform Traffic Control Devices with the reductions as indicated by the results fo the
mdar study.
Result - Conclusion
The analysis shows that warrant #1 is met for three hours and warrant # 2 is met for two
hours. Therefore these warrants do not apply. In studying warrant # 9 the one high hour criteria
are met from 5-6 PM and the two high hours criteria are met from 5-6 PM and from 6-7 PM.
Therefore a signal is justified at the Beltline Road and Moore Road intersection.
LOCATION: Z3e'/'~/,'#e/~,l(~Mr~r~/''/~d DATE:
TIME: ,3 '00 ,~/Y/ BY.
· ,~/~o,~
68 TABULAT~ ON TOTAL VE H %
66
64
60 I /~ / ?Q'~
4 ~ 1~1 rILl ~ 7 /o
46
4~
42
~, ~ ~/fi/ ~ ~ /-/ -~.r~
~e II ~ ~ I,
~7
56
~5
~4
~2
~0
29
28
26
25
24
25
22
2~
zo
~9
~8
~ 7
~ 6
;5
i 4
~ 2
COPPELL POLICE DEP~HE'T
MEMO
TO: Alan D. Ratliff/City Manager FROM: Lt. Leonard/Acting Chief
of Police
SUBJECT: Tickler Dated 10/8/87 DATE: October 12, 1987
Accident History
Per your request we have gone through our records, and checked
on accidents occurring at the intersection of Beltline, east
and west bound, and Moore Road. In the time checked, which
goes back through 1982, we show 6 reported accidents, to which
reports were made. However there have been many, many accidents
at this intersection with no injuries, and only minor damage
to vehicles, and these accidents were Blue Formed, and therefore
to do not show as reported accidents, either to the City or
the State of Texas.
Should you have any further questions on this matter, please
feel free to contact me.
M.S.L.
MSL/sgc
c/file