Park N Fly/FP-CS 901012Barton. Aschman Associates, Inc.
5485 Belt Line Road, Suite 199
Dallas, Texas 75240
USA
Phone: (214) 991-1900
Fax: (214) 490-9261
Metro: 263-9138
October 12, 1990
Mr. Steve Goram
Director
Public Works Department
City of Coppell
P.O. Box 478
Coppell, TX 75019
REs West Side Thoroughfare Plan Update
BA No. 3311.01.07 /
Dear Mr. Goram:
As a result of our meeting this morning with Mr. Bill Thompson, Mr.
Weldon Davis, Ms. Shohre Daneshmand, yourself, and representatives
from DeShazo, Starek & Tang, Inc., Albert H. Halff & Associates,
Inc., and Barton-Aschman Associates, Inc., we agreed to suDDor~t~l~_
installation 9~_ _~ _~r~f~ ~nal ~wh~' warranted) ~
i'n~e~c%io-n'0f Royal Lane and Gatewa~__B~ulevard in .conjunction
W~thnoturning movement restrictions and a ~estbound ~onnection t°'
t~e e~trance ramp to IH-635, west of Royal Lane. This traffic
s~gnal will be controlled by the same signal hardware controlling
the IH-635/Royal Lane interchange. At the same time, the City will
pursue with the State Department of Highways and Public
Transportation the construction of a connecting roadway between
Gateway Boulevard and a frontage road along IH-635.
The combination of the traffic signal and the connecting roadway
betwe~Gateway Boulevard and IH-635 should allow the Ro~a_l~Gate~a_y
i~tersectlon to function at an acce~_~able level, of serv$ce
app_~oximately until 2098. At this ~lme,
ope~a-~-~on of this"intersection falls below a level of service "C",
the q~t~.will either close the m~dian opening at Royal and Gateway
or implement a suitable alternative improvement ~easure that will
remed~' the unacceptable operation at ~his indirection. In the
meantime, the City and property owners should consider the
development of alternative solutions for this intersection in
preparation for the time that it fails to operate acceptably.
If you have any questions concerning this matter, please call.
Sincerely,
Kenneth- R.--Mar~h~ll7 P · E.
Senior Associate