Current through Register Vol. 28, No. 3, September 1, 2024
01A
(DE Revision) Type 1 Barricades shall not be used for TTC operations on
state-maintained roads.
01B (DE
Revision) Type 2 Barricades shall only be used for pedestrian channelization
along temporary pedestrian paths. Type 2 Barricades shall not be used to close
a roadway, sidewalk or crosswalk.
01C (DE Revision) When used for pedestrian
channelization, Type 2 Barricades shall be continuous and the rails shall be
mounted in accordance with ADA in order to provide for a cane rail (bottom
rail) and hand rail (top rail).
Support:
01 A
barricade is a portable or fixed device having from one to three rails with
appropriate markings and is used to control road users by closing, restricting,
or delineating all or a portion of the right-of-way.
02 (DE Revision) An example of a Type 3
barricade is shown in Figure 6F-7.
Standard:
03 Stripes on barricade rails shall be
alternating orange and white retroreflective stripes sloping downward at an
angle of 45 degrees in the direction road users are to pass. Except as provided
in Paragraph 4, the stripes shall be 6 inches wide.
Option:
04 When rail lengths are less than 36 inches,
4-inch wide stripes may be used.
Standard:
05 The minimum length for Type 1 and Type 2
Barricades shall be 24 inches, and the minimum length for Type 3 Barricades
shall be 48 inches. Each barricade rail shall be 8 to 12 inches wide.
Barricades used on freeways, expressways, and other high-speed roadways shall
have a minimum of 270 square inches of retroreflective area facing road users.
Guidance:
06 Where barricades extend entirely across a
roadway, the stripes should slope downward in the direction toward which road
users must turn.
07 Where both
right and left turns are provided, the barricade stripes should slope downward
in both directions from the center of the barricade or barricades.
08 (DE Revision) Where no turns are intended,
or the road is completely closed, the stripes should be positioned to slope
downward toward the center of the barricade or barricades.
09 Barricade rails should be supported in a
manner that will allow them to be seen by the road user, and in a manner that
provides a stable support that is not easily blown over or displaced.
10 The width of the existing pedestrian
facility should be provided for the temporary facility if practical. Traffic
control devices and other construction materials and features should not
intrude into the usable width of the sidewalk, temporary pathway, or other
pedestrian facility. When it is not possible to maintain a minimum width of 60
inches throughout the entire length of the pedestrian pathway, a 60 x 60-inch
passing space should be provided at least every 200 feet to allow individuals
in wheelchairs to pass.
11
Barricade rail supports should not project into pedestrian circulation routes
more than 4 inches from the support between 27 and 80 inches from the surface
as described in Section 4.4.1 of the "Americans with Disabilities Act
Accessibility Guidelines for Buildings and Facilities (ADAAG)" (see Section
1A.11).
Option:
12 (DE Revision) Paragraph deleted.
Guidance:
13 On high-speed expressways or in other
situations where barricades may be susceptible to overturning in the wind,
ballasting should be used.
Option:
14 Sandbags may be placed on the lower parts
of the frame or the stays of barricades to provide the required ballast.
Standard:
14A
(DE Revision) If used, sand ballasts shall consist of an appropriate mixture of
material to preclude freezing.
Support:
15 (DE Revision) Paragraph deleted.
Option:
16 Barricades may be used alone or in groups
to mark a specific condition or they may be used in a series for channelizing
road users.
17 (DE Revision)
Paragraph deleted.
Guidance:
18 (DE Revision) Paragraph deleted
Standard:
19 (DE Revision) Type 3 Barricades used at a
road closure shall be placed completely across a roadway, from curb to curb, or
from edge of road to edge of road, with the stripes positioned downward toward
the center of the roadway.
Guidance:
20 Where provision is made for access of
authorized equipment and vehicles, the responsibility for Type 3 Barricades
should be assigned to a person who will provide proper closure at the end of
each work day.
Support:
21 When a highway is legally closed but
access must still be allowed for local road users, barricades usually are not
extended completely across the roadway.
Standard:
22 A sign shall be installed with the
appropriate legend concerning permissible use by local road users (see Section
6F.09). Adequate visibility of the barricades from both directions shall be
provided.
Option:
23 Signs may be installed on barricades (see
Section 6F.03).
Guidance:
24 (DE Revision) Signs mounted on Type 3
Barricades should not cover more than 50 percent of the top two rails or 33
percent of the total area of the three rails.