ST9902-CS130416 (6)
Halie Hernandez
From:Andrew Luce <ALuce@TNPINC.com>
Sent:Tuesday, April 16, 2013 5:38 PM
To:Suki Y. Hay; Keith Marvin
Cc:George Marshall; Robert Jenkins; Casey McBroom; Chris Schmitt
Subject:Re: Sandy Lake Addendum #2
Suki/Robert,
Please include Keith on any traffic questions as he is in charge of the Sandy Lake project and was the engineer that
sealed the Denton Tap plans.
Thanks,
Andrew
Sent from my iPhone
On Apr 16, 2013, at 5:07 PM, "Suki Y. Hay" <shay@tnpinc.com> wrote:
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.
1
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
<image001.jpg>
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
<MUTCD 2011 TxDOT_Flashing Yellow.pdf>
<Section 6 - Technical Specifications_Copy.doc>
<sandy lake spec_city comments.pdf>
<Pay Item_City Comments.pdf>
<Section 5 - Description of Pay Items_Copy.doc>
<Bid Items 2A & 2B_Copy.xlsx>
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