TR9701-CS 970430From: Jeremy Wyndham To: Atul Patel Date: 5/t/97 Time: t4:34:55
Page 2 of 5
Bver. dPup
CIvil, Inc. - Dallaa, Texas Office
4311 OakLawn · Suite 300 · Dallas, TX 75219 · Tole: (214) 520-2116 ·
Fax: (214) 521-3539
MEETING MEMORANDUM NO. 13776-3
April 30, 1997
MEETING DATE: April 15, 1997
LOCATION:
City of Coppell
255 Parkway Boulevard
1 st Floor Conference Room
PARTICIPANTS:
Atul Patel
Kathy Mullins
Jesse Hembree
Tony Tramel
Jeremy Wyndham
Gerry de Camp
City of Coppell
City of Irving
City of Irving
DeShazo, Tang & Associates
Sverdrup Civil
Sverdrup Civil
SUBJECT:
Dallas County CMAQ Program
Project 75
Progress Review Meeting 3
Discussion of Technical Memoranda:
Mr. Wyndham presented Draft Technical Memoranda for each control area, which included
sections on Proposed Control Area Boundaries, Proposed Coordination Across City Limits,
Proposed Cycle Lengths, Preliminary Measures of Effectiveness and Recommended Hardware
Improvements.
Northern ~ection
· The section includes all of the existing and proposed signalized intersections from Denton Tap
Road and Parkway Boulevard to Belt Line Road and SH 114 Eastbound Ramp, inclusively.
· As the section includes signals in both Irving and Coppell, coordination across City Limits will
be necessary. Mr. Wyndham discussed possible ways of doing this, the easiest being Time-Based
Coordination maintained by the respective signal technicians for each city. Mr. Wyndham also
suggested the possibility of executing a Force Accoum Agreement that would allow the
technicians of one city to control and maintain for coordination a few of the signals in the other
city.
· Mr. Wyndham discussed the three recommended plans and their proposed cycle length ranges.
An attempt was made to get progression at the speeds that the traffic is currently driving. Mr.
Tramel asked that Sverdrup also look into what the Travel Time Runs are showing as far as
speeds and travel times for the different times of day.
From: Jeremy Wyndham To: Atul Patel Date: 5/1/97 Time: 14:35:51
Page 3 of 5
Dallas County CMAQ Program
Project 75
April 15, 1997
Page 2
Mr. Wyndham discussed the proposed measures of effectiveness that are provided by the
PASSER II and Synchro Professional software packages. Mr. Tramel also suggested a possible
Measure of Effectiveness that compares the bandwidth to the traffic volume on a particular section
of road to quantify the importance of progression in sections that are heavily traveled.
Mr. Wyndham discussed the proposed signal hardware, signal phasing and pavement marking
improvements that would allow the northern section to function as effeciently as possible. The
locations discussed included:
· Denton Tap Road and Parkway Boulevard;
· Denton Tap Road and Bethel School Road;
· Denton Tap Road and Bethel Road;
· Denton Tap Road, Belt Line Road and Southwestern Road;
· Belt Line Road and IH 635 Eastbound Ramp; and
· Belt Line Road and Regent Boulevard.
Mr. Tramel asked that sketches be included in the Final Technical Memorandum to show what
the signal phasing and pavement marking improvements are so that the report can be used to get
approvals from the two city councils and TxDOT.
TxDOT will need to do the pavement marking improvements and signage changes on the IH 635
Eastbound Exit Ramp. A request to them will need to be made to change the lane assignment
from "left" and "left-through-right" to "left-through" and "right."
The two cities agreed that the proposed signal hardware, signal phasing and pavement marking
improvements made sense and that these improvements should be pursued as quickly as possible
to allow the proposed timing plans to be as effective as possible.
The two cities also agreed that the use of non-permissive left-turn phasing was acceptable, but that
the use of the Dallas display would be a hard sell.
Southern Section
· The section includes all of the existing signalized intersections from Belt Line Road and Valley
View Lane to Belt Line Road and Oakdale Road, inclusively.
· As all of these intersections are in the City of Irving, coordination a~ross City Limits will not be
necessary for this section.
· Mr. Wyndham discussed the six recommended plans and their proposed 0ycle length ranges. Mx.
Hembree indicated that all of the signals in the southern section are currently set up for a
progression speed between 30 and 35 miles per hour.
· Mr. Wyndham reiterated the proposed measures of effectiveness that are provided by the
PASSER II and Synchro Professional software packages.
From: Jeremy Wyndham To: Atul Patel ,~ Date: 5/1197 Time: 14:36:57 ~,~
Page 4 of 5
Dallas County CMAQ Program
Project 75
April 15, 1997
Page 3
Mr. Wyndham indiealed that the existing signal hardware, signal phasing and pavement markings
in this section appear to be adequate at this time for optimal progression. Mr. Wyn'dham later
remembered that the intersection of Belt Line ,Road and Valley Vierw Lane has a heavy
eastbound left-turn movement that could benefit from an optional dual left-turn lane. This
geometric condition would necessitate the splitting of the cross street phases. Mr. Wyndham
discussed the situation with Ms. Mullins later that week, and she indicated that she would look
at the intersection in the field.
Mr. Hembree brought up the problems with the weekend traffic at the Belt Line Road / SH 183
interchange. In particular, he asked about possible lane use changes to the intersection of Belt
Line Road and the SH 183 Westbound Frontage Road. Mr. de Camp suggested that the use of
a right-turn overlap for the westbound frontage road might alleviate some of the sight distance
problems that are keeping the right-turning traffic from efficintly using the dedicated lane.
Mr. Hembree also asked about the possibility of recommending that the southbound leR-turn lane
into the commercial driveway just north of the westbound frontage road be closed. This could
improve the northbound traffic flow in the area.
Next Meeting:
The next meeting was set for:
May 23, 1997
3:00 PM - 4:00 PM
City of Irving
825 West Irving Boulevard
2nd Floor Transportation Conference Room
These minutes have been prepared by Jeremy Wyndham (214) 520-2116, and are considered accurate
unless the author is notified within 10 days of the preparation date.
Attachment: Sign-In Sheet
Distribute to:
All present
Per Birdsall
Brent Adams
Ivan Nieodemus
Karen Jones
Don Cranford
Moosa Saghian
Mark Goode
File