FW: Sandy Lake Addendum #2 (2)Sorry, Keith. See attachments
From: Suki Y. Hay
Sent: Tuesday, April 16, 2013 5:08 PM
To: gmarshall@coppelltx.gov
Cc: Robert Jenkins; Casey McBroom; Andrew Luce
Subject: Sandy Lake Addendum #2
George,
The project team is preparing for Addendum #2 this week. I was
wondering if you could review a few items that were noted at the Denton
Tap signal and the attached markups/highlighted items. These items deal
with the recent change to the City furnishing the controller/cabinets at
the 3 intersections and some City traffic related comments that may not
have been fully addressed prior to advertisement.
Denton Tap Signal
1. The V4LT signal head to be used for the flashing yellow
prot/perm left turn phasing does not match the signal indications per
Figure 4D-12 of the TMUTCD (attached). The red and yellow ball
indications need to be swapped with arrow indications.
2. Please be aware that these flashing yellow arrow signal heads
are shown being used in the EB/WB Sandy Lake Road dual left turn lanes.
Just making sure that it was the City’s intent to operate prot/perm
flashing yellow dual lefts at this intersection vs protected only dual
lefts.
3. Per the Denton Tap signal plans, the video detection system,
ILSN signs, and Comm equipment are shown being re-used. Bid Qtys and
Pay Item Descriptions have been revised for clarity. The payment for
re-using the video falls under 1-124, whereas separate pay items 1-148
and 1-176 covers the Comm and ISNS, respectively.
Technical Specs
1. Since the City is now furnishing the controller and cabinet.
Please advise if these sections (captions in red) in the spec are to
removed or edited accordingly.
2. There was an outstanding comment to include video detection
and ISNS sections in the spec (see attached comment). Does the City
have internal specs on these items to add to Addendum #2?
Pay item description/Qtys - Green Highlights are markups made for
Addendum #2
1. The “clouded” comment sections are items that the City
previously commented on needing further attention.
2. Qty for pay item 1-146 Video Imaging Vehicle Detection System
has been reduced by 1, for a total of 2 to reflect its re-use at Denton
Tap.
3. Cost of the controller and cabinets have been backed out of
the 1-122 to 1-224 Pay Items. These Pay Item descriptions may need
clarification to match any revisions made to item 1 under Technical Spec
listed above.
I have attached the electronic files of the pay items, tech spec, and
cost estimate for your use. Please feel free to mark up any revisions
for inclusion into Addendum #2 set for Monday 3/22.
Sorry if this is longwinded….feel free to call me if you need help
deciphering all this.
-Suki
Suki Hay, P.E.
Traffic Engineer
1100 Macon Street
Fort Worth, Texas 76102
817.336.5773 Main
817.665.7194 Direct
817.965.1636 Mobile
817.336.2813 Fax
shay@tnpinc.com <mailto:shay@tnpinc.com>