A.
Unless specified otherwise, all materials, sign dimensions, lettering and installation shall meet the requirements of Pennsylvania Code Title 67, Chapter 212.
B.
Street name signs shall be reflectorized with a white legend on a
green background.
C.
Street name sign posts shall be hot-dipped galvanized steel or aluminum
tubing, twelve-foot one-piece section, 2 3/8 inches O.D., minimum
2 lbs. per foot.
D.
All fittings shall be aluminum and/or stainless steel.
E.
Each post shall have a minimum of two signs, naming each street.
F.
Where new streets are constructed, street name signs shall be installed
immediately after installation of the road binder course or prior
to issuance of the first new home use and occupancy permit, whichever
occurs first.
Barricades, if required, shall meet PADOT standards.
A.
Right clearance markers, PADOT W16-2-2R, and painted line striping
shall be installed at all widened sections of roadways where the widened
portion of the lane ends and shall be as shown in the Standard Details.
B.
The markers shall be reflectorized white and red stripes. The bottom
of the markers shall be at least 18 inches above the pavement and
shall be mounted on steel channel post with breakaway mount. Line
striping shall be as shown in the Standard Details.
At all streets and widened sections of road where curb is not
required, but paved shoulders are to be constructed, the cartway shall
be delineated from the shoulder by the painting of a four-inch-wide
white line.
A.
General. Traffic paint shall be of a ready-mixed pigmented binder
in a single package system and shall meet the requirements of ASTM
D868 and ASTM D1309. When applied at a wet-film thickness of 15 mils,
paint shall be suitable for application to traffic bearing surfaces
such as portland cement concrete, bituminous pavements, and plain
or vitrified brick surfaces of streets, highways, bridges, tunnels,
and parking lots.
B.
Traffic paint shall be either an alkyd resin type product or a combination
of alkyd resin modified with chlorinated rubber, ready-mixed, white
and yellow. Products shall be reflectorized for night visibility,
if required, by adding reflective spheres before the paint dries or
sets, using the drop-on or pressurized methods.
(1)
Pigments. Except for the yellow pigment, the supplier may use
any combination of pigments, provided the finished paint meets all
the requirements specified herein. Supplier may use any organic yellow
pigment, provided it does not contain any of the metals listed in
Environmental Protection Agency (EPA) Code of Federal Regulations,
40 CFR 261.24, Table 1. Sufficient suspending and dispersing agents
shall be used to prevent excessive settling as specified herein.
(2)
Binder. The supplier may use any combination of ingredients,
except tall oil resins, provided the finished paint meets all the
requirements herein. Sufficient amounts of anti-skinning agents shall
be used to prevent skinning as specified herein. Sufficient resin
solids, compatible thinners and driers, if necessary, shall be used
to meet requirements of Table I.
C.
Paint requirements. The mixed paints shall meet the requirements
specified below in the following table for white and yellow paints:
(1)
Color of yellow paint. The color of the dry paint film when
compared visually shall essentially match Color No. 33538 of Federal
Standard 595.
(2)
Glass spheres shall meet the requirements of PADOT Publication
408, Section 1103.14(a)2.
|
Requirements of Mixed Paints
| ||||
|---|---|---|---|---|
|
Characteristics
|
Standards
|
Type I
White and Yellow
| ||
|
Pigment, percent by weight
|
55% to 60%
| |||
|
Nonvolatile vehicle, percent by weight of vehicle
|
40 minimum
| |||
|
Uncombined water, percent by weight of paint
|
1.0 maximum
| |||
|
Coarse particles and skins (retained on No. 325 sieve, 1% by
weight of pigment)
|
1.0 maximum
| |||
|
Consistency, krebs units
|
65 to 70 (Type I)
70 to 110 (Type II)
| |||
|
Weight per gallon, pounds:
| ||||
|
White
|
11.7 minimum
| |||
|
Yellow
|
12.0 minimum
| |||
|
Fineness of grind, Hegman
|
2.0 minimum
| |||
|
Contract ratio, dry
|
0.96 minimum
| |||
|
Directional reflectance:
| ||||
|
White
|
84 minimum
| |||
|
Yellow
|
50 minimum
| |||
|
Drying time, no pickup, minutes (lab)
|
ASTM D711
|
30 maximum
| ||
|
Flexibility
|
No cracking or flaking
| |||
|
Bleeding test
|
ASTM D868 and D969
|
5 minimum
| ||
|
Water Resistance
|
—
| |||
|
Skinning (48 hours)
|
None
| |||
|
Storage Stability
|
ASTM D1309
|
6 minimum
| ||
|
Condition in container (1/sieve conforming to RR-S-366)
|
See 3.6.3
| |||
