Fwd: Sandy Lake Addendum #2
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Begin forwarded message:
From: "Suki Y. Hay" <shay@tnpinc.com <mailto:shay@tnpinc.com> >
Date: April 16, 2013 5:07:35 PM CDT
To: "gmarshall@coppelltx.gov <mailto:gmarshall@coppelltx.gov> "
<gmarshall@coppelltx.gov <mailto:gmarshall@coppelltx.gov> >
Cc: Robert Jenkins <RJenkins@TNPINC.com
<mailto:RJenkins@TNPINC.com> >, Casey McBroom <CMcBroom@TNPINC.com
<mailto:CMcBroom@TNPINC.com> >, Andrew Luce <ALuce@TNPINC.com
<mailto:ALuce@TNPINC.com> >
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