PD149-CS 960311Carter ;: Burgess
Consultants in Engineering, Architecture,
Planning and the Environment
March 11, 1996
Mr. Dennis Winzeler
Vista Properties, Inc.
5959 Berkshire Lane, Ste 400
Dallas, Texas 75225
Re: Traffic Impact Summary for the Vistas of Coppell
Mr. Winzeler,
Based on conversations with you concerning the traffic generated by your development, it is
projected that a major decrease in traffic will be produced by the site as single-family versus one
as mixed commercial and multi-family. It is projected that the 252 dwelling units will generate
approximately 2,400 trips daily, with 180 and 249 trips during the AM and PM peak hours,
respectively. This is in contrast to the large volumes generated as a commercial/multi-family
development. The 21.78 acre commercial parcel developed with 50% of the land covered with a
two-story building would create 30,868 trips daily, with 612 and 2858 trips during the AM and
PM peak hours, respectively. In addition, the 40.45 acre multi-family parcel with 22 units per
acre, would generate 5,792 trips daily, with 440 and 485 trips during the AM and PM peak hours,
respectively. Therefore, the change in land use from commercial/multi-family to single-family
will reduce the daily trips by 93%.
In terms of trip distribution, it is anticipated that most traffic will be traveling to downtown
Dallas via Denton Tap or to North Dallas via the soon to be completed interchange at IH 35 and
SH 121 Bypass. We anticipate that 50% of the traffic will use IH 35, 30% on Denton Tap, and
the remaining 20% will use MacArthur.
It has been my experience that a signal is not recommended on the frontage road for a private
development. Therefore, the high volumes generated as part of the current commercial zoning
would be limited by the less than optimal traffic control. The exiting volume generated by the
single-family development may not warrant a signal due to the reduced AM peak hour exiting
volume of 137 vehicles. Therefore, in terms of traffic, the single-family development will create
better traffic flow in the area than a commercial/multi-family land use. Furthermore, with three
residential entrances to the future frontage road and one to MacArthur, traffic will be dispersed.
The projected volumes would then be less than what is warranted for a signal to be installed.
Our experience indicates that installation of a signal on TxDOT maintained frontage roads,
between major cross streets, is highly unusual.
Carter & Burgess, Inc. 7950 Elmbrook Suite 250 Dallas, Texas 75247-4951
(214) 638-0145 Metro (214) 263-2019 Fax (214) 638-0447
Please call with any traffic related questions concerning this project.
Sincerely,
CARTER & BURGESS, INC.
Steve T. Taylor, P.E.
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