96M09/22/06

S635-96M.doc

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  Use on projects as appropriate.

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**Section 635. - TEMPORARY TRAFFIC CONTROL**

**Construction Requirements**

**635.03 General** [Add the following to the first
paragraph:]{.underline}

Use barricades, cones, tubular markers, drums, portable sign supports,
vertical panels, truck mounted attenuators, and temporary crash cushions
that meet crash testing requirements of NCHRP 350 or that have been
accepted by the FHWA for nation-wide use. Submit a written certification
that traffic control devices in use on the project meet crash-testing
requirements. Information regarding NCHRP 350 and crash-tested FHWA
accepted work zone traffic control devices can be found at:

[http://safety.fhwa.dot.gov/fourthlevel/hardware/wzd.htm.]{.underline}

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  When temporary traffic control devices are required, include subsection
  635.03(i).

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**635.03 General.** [Add the following:]{.underline}

**(i)** Furnish temporary traffic control devices that meet the NCHRP
Report 350, Recommended Procedures for Safety Performance and Evaluation
of the Highway Features, crashworthiness standards.

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  When barricades are required, include subsection 635.05.

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**635.05 Barricades.** [Delete the second sentence and substitute the
following:]{.underline}

Use type III retroreflective sheeting.

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  When cones or tubular markers are required, include subsection 635.06.

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**635.06 Cones and Tubular Markers.** [Delete the third sentence and
substitute the following:]{.underline}

Use type III or VI retroreflective sheeting.

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  When construction signs are required, include subsection 635.07.

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**635.07 Construction Signs.** [Delete the first sentence and substitute
the following:]{.underline}

Use type III, VII, VIII, or IX retroreflective sheeting. Provide the
same type of sheeting on all post-mounted construction signs that
pertain to the project.

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  When drums are required, include subsection 635.08.

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**635.08 Drums.** [Delete the third sentence and substitute the
following:]{.underline}

Use type III retroreflective sheeting.

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  When flaggers are required, include subsection 635.09.

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**635.09 Flaggers.** [Delete the first sentence and substitute the
following:]{.underline}

Furnish flaggers certified by ATSSA, the National Safety Council, the
International Municipal Signal Association or a state agency.

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  When temporary barriers are required, include subsection 635.11.

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**635.11 Temporary Concrete Barriers.** [Add the following:]{.underline}

Use barriers that meet all requirements of NCHRP 350 or have been
accepted by the FHWA for nation-wide use.

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  When temporary pavement markings is a pay item in the bid schedule,
  include subsection 635.13 and 635.26. Include Standards M635-2 and
  M635-3 in the plans. Use bid item "Temporary Pavement Markings, by the
  meter or kilometer". This pay item allows the contractor the option of
  using paint, tape, raised pavement markers or vehicle positioning
  guides.

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**635.13 Temporary Pavement Markings and Delineation.** [Delete the text
and substitute the following:]{.underline}

Before opening a pavement surface to traffic, remove all conflicting
pavement markings by sandblasting or other methods that do not damage
the surface or texture of the pavement. Make removal pattern uneven so
it does not perpetuate the outline of the removed pavement markings.
Lightly coat sandblasted or removal areas on asphalt surfaces with
emulsified asphalt.

Provide pavement markings or delineation and signing according to
Section 156, the MUTCD, and project plans. Install and maintain
temporary pavement markings that are neat, crack free, true, straight,
and unbroken.

For seasonal suspensions, apply permanent pavement marking pattern with
traffic paint.

Install permanent pavement markings within 14 days. If permanent
pavement markings are not placed within 14 days, provide, at no cost to
the contract, additional temporary delineation equivalent to the
permanent pavement marking pattern required by the contract. Do not
apply temporary traffic paint to the final surface.

For temporary pavement markings, use preformed retroreflective tape,
traffic paint, or temporary raised pavement markers as follows:

**(a) Temporary Markings.** For temporary pavement markings, use
preformed retroreflective tape, traffic paint, or temporary raised
pavement markers as indicated in the plans and as follows:

> **(1) Preformed retroreflective tape.** Apply according to the
> manufacturer\'s instructions. Remove all loose temporary preformed
> retroreflective tape before placing additional pavement layers.
>
> **(2) Temporary traffic paint.** Apply temporary traffic paint at a
> 0.38-millimeter minimum wet film thickness (0.38 liters per square
> meter). Immediately apply type 1 glass beads on the paint at a minimum
> rate of 0.7 kilograms per liter of paint.
>
> **(3) Raised pavement markers.** When chip seals, slurry seals, or
> tack coats are used after marker placement, protect the markers with
> an approved protective cover, which is removed after the asphalt
> material is sprayed.

Remove all temporary pavement markers before placing additional pavement
layers. Remove all temporary pavement markings from the surface course
before placing permanent pavement markings.

**(b) Delineation for Unmarked Pavements with Vehicle Positioning
Guides.** For ADT's greater than 1000, vehicle positioning guides may be
used in lieu of temporary markings for the delineation of unmarked
pavements for a period of no longer than 3 days. For ADT's of 1000 or
less, vehicle positioning guides may be used in lieu of temporary
markings for the delineation of unmarked pavements for the full 14 day
temporary marking period.

For unmarked pavements, install signing and vehicle positioning guides
as indicated on plan sheet M635-3. Use vehicle positioning guides that
meet the requirements of Subsection 718.21(b), raised pavement markers.

Remove all vehicle positioning guides before placing additional pavement
layers. Remove all vehicle positioning guides from the surface course
before placing permanent pavement markings.

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  When vertical panels are required, include subsection 635.14.

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**635.14 Vertical Panels.** [Delete the third sentence and substitute
the following:]{.underline}

Use type III retroreflective sheeting.

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  When portable changeable message signs are required, include subsection
  635.18.

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**635.18 Variable Message Signs.** [Delete the text and substitute the
following:]{.underline}

Conform to the standards and guidance of MUTCD Section 6F.52, Portable
Changeable Message Signs.

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  When temporary crash cushions are required, include subsection 635.19.

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**635.19 Temporary Crash Cushions.** [Delete the text and substitute the
following:]{.underline}

Furnish and install an FHWA-approved temporary crash cushion conforming
to the appropriate level of crashworthiness per NCHRP Report 350,
*Recommended Procedures for the Safety Performance and Evaluation of the
Highway Features.* Information regarding FHWA-approved crash cushions
can be found at:

[http://safety.fhwa.dot.gov/programs/roadside_hardware.htm]{.underline}.

**Measurement**

**635.26**

**(d)** [Add the following:]{.underline}

"DO NOT PASS", "PASS WITH CARE", and "NO CENTER STRIPE" signs required
to be used with vehicle positioning guides are subsidiary to the
temporary pavement marking item. Do not measure these signs as
construction signs.

**(k)** [Delete the text and substitute the following:]{.underline}

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  Edit the [\[meter/kilometer\]]{.mark} text accordingly.

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Measure temporary pavement markings by the [\[meter/kilometer\]]{.mark}
along the centerline of the roadway. Measure temporary pavement markings
as a single measurement, inclusive of all markings, from end to end
regardless of color, material type, or number of lines. Do not deduct
for standard gaps between stripes. Measure only one application of
temporary pavement markings per lift.

Measure vehicle positioning guides used at the option of the Contractor
in lieu of temporary markings as equivalent temporary pavement markings.
When vehicle positioning guides exceed the period of use stated in the
plans, provide additional temporary or permanent pavement markings at no
cost to the Government. Measure vehicle positioning guides by the
[\[meter/kilometer\]]{.mark} along the centerline of the roadway.
Measure as a single measurement, inclusive of all markings, from end to
end regardless of material type, gaps or number of lines. Measure only
one application of vehicle positioning guides per lift. "DO NOT PASS",
"PASS WITH CARE", and "NO CENTER STRIPE" signs required to be used with
vehicle positioning guides are subsidiary to the temporary pavement
marking item. Do not measure these signs as construction signs.

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  Use the following to provide a Traffic & Safety Supervisor pay item on
  projects where there are **significant** (i.e., major complexities,
  complicated traffic control) issues with traffic or safety. This will
  be the exception rather than the rule. The FP is setup so the
  contractor furnishes a traffic and safety supervisor for all projects,
  but does not get paid for it. Use this specification only when there is
  a need to emphasize coordination and supervision of the traffic control
  plan. The use of Lump Sum payment is not recommended, due to the
  paperwork involved if the work is not being satisfactorily performed.
  Recommend the use of week long periods. We want to keep from losing
  focus that this job covers a continuous period without breaks at
  nightfall.

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[Add the following:]{.underline}

Measure Traffic and Safety Supervisor by the week (7 consecutive days,
beginning and ending at midnight on the same day of the week) for the
work described in Subsection 156.08.