TM 5-822-2/AFM 88-7, Chap. 5
by the letter "T," include all installation roads and streets
course, surface course, shoulders, and median are
which provide access from other roads and streets to
constructed.
(3) Median. A directional separator located
individual units of facilities of a functional area.
between two roadways carrying traffic in opposite
the letters "PR," include all installation roads which are
directions.
(4) Shoulder. That portion of the roadway
planned and designed for use in surveillance or in
patrolling areas for security purposes.
They will
contiguous with the pavement for accommodation of
generally be designed for low volumes of light traffic.
stopped vehicles.
(5) Special considerations.
(5) Curb. A vertical or sloping member along
The above
highways and roads may be required to accommodate
the edge of a pavement or shoulder forming part of a
overweight and oversize vehicles such as the Minuteman
gutter, strengthening or protecting the edge, and clearly
Transporter-Erector. Alignment, grades, and clearances
defining the edge to vehicle operators.
(6) Traffic lane. That portion of the roadway
will be adjusted, as required, to permit this traffic.
d. Types of open storage areas. Open storage
for the movement of a single line of vehicles.
(7) Parking lane. An auxiliary lane primarily
areas are divided into two types according to anticipated
use, as follows:
for the parking of vehicles.
(1) Vehicular. A vehicular open storage area
f. Vehicle types.
is an uncovered area planned and designed for the
(1) Passenger car, truck, light-delivery truck,
servicing, parking, or storing of passenger cars, trucks,
bus, and truck combinations are as defined by AASHTO.
tanks, or other wheeled vehicles at military installations.
(2) Half-track. These self-propelled tactical
Various kinds of vehicular open storage areas are
vehicles designed for the transportation of personnel and
required by different services, as follows:
materiel off highways are mounted on a combination of
(a) Nonorganizational parking areas.
wheels and tracks. These are vehicles such as the
Designated areas planned and designed for mass
M2A1, M16, M3, etc.
parking of privately owned visitors' vehicles, civilian
(3) Full-track. These self-propelled tactical
employees, and attached personnel at community
vehicles designed for the transportation of personnel and
centers, administration buildings, hospitals, industrial
materiel off highways are mounted on full tracks. These
buildings, barracks, quarters, housing areas, and other
are vehicles such as tanks (M60, M1), carriers (M113),
areas of public assembly.
gun and howitzer carriages, etc.
(b) Organizational motor parks and
(4) Special vehicles are to be described by
motor pools. Designated areas designed and planned to
using service.
g. Traffic terms.
provide control, security, and work space for
maintenance and storage of organizational and
administrative vehicles.
percentage limitations, represents the proportion of the
(c) Refueling vehicle area (Air Force).
total traffic that is composed of buses, trucks, tanks, etc.
An area planned and designed for continuous operation
The remainder of traffic is composed of light-delivery
of loaded refueling units.
trucks and passenger cars.
(d) Post, base, and installation engineer
(2) Traffic volume.
areas. Designated areas planned and designed to
(a) Average daily traffic (ADT). The
provide adequate space for reception, classification,
average 24-hour volume is the total volume during a
repair, and storage of vehicles and materials required for
stated period divided by the number of days in that
the maintenance and upkeep of buildings, grounds, and
period. Unless otherwise stated, the period is a year.
utility systems within a military installation.
(b) Design hourly-volume (DHV). This
(2) Materiel. A materiel open storage area is
is a volume determined for use in design representing
an uncovered area planned and designed for the storage
traffic expected to use a facility during an hour. The daily
of nonvehicular materiel and equipment at military
peak hour (or the average daily peak hour over a period
installations.
of days) should be used as the DHV. The DHV is one of
e. Highway cross-section terms.
the most important parameters for design, as it is the
(1) Roadway. The portion of a highway,
including shoulders, for vehicular use.
(2) Roadbed. The graded portion of a 1-6
highway usually considered as the area between the
intersections of top and side slopes upon which the base
1-6
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