\$\$636.00A

######### Section 636.---SIGNAL, LIGHTING, AND ELECTRICAL SYSTEMS

Revised 8 May 2005

*[INCLUDE THE FOLLOWING FOR TRAFFIC DETECTOR DEVICES]{.mark}*

\$\$636.01A

636.01. Add the following:

This work includes the installation of traffic detector systems.

[]{.mark}

*[INCLUDE THE FOLLOWING FOR LIGHTING AND MISCELLANEOUS ELECTRICAL
SYSTEMS, IF APPLICABLE]{.mark}*

\$\$636.02A

636.02. Add the following:

> Conduits under the traveled way. 721.01(a)(2)

*[INCLUDE THE FOLLOWING FOR TRAFFIC DETECTOR DEVICES]{.mark}*

\$\$636.02C

> Granular Backfill 703.03

\$\$636.02G

> Furnish type THWN Class B #14 AWG minimum, 600 Volt stranded single
> copper conductor, IPCEA Standard 861-401 with UL label. Furnish wire
> with a uniform thickness of insulation which is moisture and heat
> resistant to 250 ^o^F [(120 ^o^C)]{.mark}.

\$\$636.02H

> Furnish shielded twisted pair, size No. 14 minimum, lead-in cable.

\$\$636.02I

> Furnish a traffic counter with the following characteristics:

[]{.mark}

> *[OBTAIN SPECIFICS FROM DENVER SERVICE CENTER AND APPROVAL FROM
> DIRECTOR OF PROJECT DELIVERY, IF PRODUCT IS SOLE SOURCE]{.mark}*

[INCLUDE THE FOLLOWING FOR LIGHT POLES. SELECT THE APPROPRIATE
HIGHLIGHTED MATERIAL TYPE]{.mark}

\$\$636.04A

636.04. Add the following:

Furnish [steel or aluminum]{.mark} poles.

*[INCLUDE THE FOLLOWING AND \$\$635.20A FOR TEMPORARY SIGNAL
SYSTEMS]{.mark}*

\$\$636.04B

636.04. Add the following:

Design and place the temporary signal system according to the MUTCD,
Part IV.

Furnish a signal controller capable of operating in the following 3
modes:

  ------------------ ---------------------- -------------------- ---------------------- ---------------------
                     Signal Facing                                                      

                     [Westbound                                  [Eastbound             
                     Traffic]{.underline}                        Traffic]{.underline}   

  1\. Morning Rush                          solid Red                                   solid Green

  2\. Evening Rush                          solid Green                                 solid Red

  3\. Non-Rush                              Red/Yellow/Green                            Red/Yellow/Green
  ------------------ ---------------------- -------------------- ---------------------- ---------------------

[]{.mark}

*[INCLUDE ONE OF THE FOLLOWING CONCERNING COMMERCIAL
ELECTRICITY]{.mark}*

\$\$636.04C

Commercial electricity is available to power the temporary signal system
at the *[[(insert location)]{.underline}]{.mark}*. Coordinate with the
local electric company according to Subsection 107.02.

\$\$636.04D

Commercial electricity is not available at the project site. Furnish a
power source to operate the signal system.

# [INCLUDE THE FOLLOWING FOR ALL CONDUIT PLACEMENTS]{.mark}

\$\$636.05A

636.05. Add the following:

Install conduits a minimum of 3 feet [(1 meter)]{.mark} below finished
grade. Replace pavement structure removed to install conduit in kind.

[]{.mark}

*[INCLUDE THE FOLLOWING FOR TRAFFIC DETECTOR DEVICES]{.mark}*

\$\$636.05B

636.05. Add the following:

Install pull boxes flush with the shoulder surface. Restore the
disturbed area around the pull box and conduit installations.

Complete the installation of all loops, conduits, and pull boxes at 1
location before moving to another location.

Install 1-inch [(25-millimeter)]{.mark} conduit under the shoulder from
the end of the saw cut to the pull box. Do not drill or cut the part of
the concrete encasement between the edge of the pavement and the pull
box for conduit installation. Install a bushing on the conduit stubout
to prevent damage to loop lead-in wires.

Install the conduit in a direct line with the loop saw cut so that the
wires entering the conduit will not be bent. Construct the hole in the
curb, if applicable, at a depth that will permit a minimum of 2 inches
[(5 centimeters)]{.mark} of cover on top of the conduit when installed.
The cover over the conduit shall be the same material used to seal the
sawcut.

\$\$636.07A

636.07. Add the following:

Furnish and install the lead-in cable in the conduit from the pull box
with sufficient length to reach the future counter cabinet. Secure the
lead-in cable and cap the T-section end. Splice each loop to an
individual lead-in cable.

Install traffic counters and connect to loops according to the
manufacturer\'s recommendations.