Section 1. INTRODUCTION
1. SCOPE. This manual presents criteria for the design of pavements and
supporting materials for roads, parking areas, and walks. For design criteria
for soil mechanics problems associated with pavement design (such as
consolidation and stability of compressible or weak subsoils underlying fills,
and soil compaction procedures), see Soil Mechanics, Foundations, and Earth
Structures, NAVFAC DM-7. For additional criteria on traffic speeds, use
classification and loads, geometry, and related factors applicable to roads
and parking areas; see General Provisions and Geometric Design for Roads,
Streets, Walks, and Open Storage Areas, NAVFAC DM-5.5. Pavement design
criteria given in this manual should be supplemented or modified by local
state highway department practices, where investigation has shown that they
are adequate and economical or are required for local conditions.
2. RELATED CRITERIA. Criteria for the design of some features related to
pavements are delineated in this and other manuals in the design manuals
series, as cited below:
Subject
Source
Structural Engineering . . . . . . . . . . . . . .
. . . . . . NAVFAC DM-2
Bridge pavement
Hydrology and Hydraulics . . . . . . . . . . . . .
. . . . . . NAVFACDM-5.2
Surface drainage
Subsurface drainage
Drainage Systems . . . . . . . . . . . . . . . . .
. . . . . . NAVFACDM-5.3
Surface drainage
Subsurface drainage
Soil Mechanics, Foundations, and Earth Structures.
. . . . . . NAVFAC DM-7
Soil exploration, identification, and testing
Subsurface drainage
Airfield Pavements . . . . . . . . . . . . . . . .
. . . . . . NAVFAC DM-21
Airfield pavements
Subsurface drainage
3. CANCELLATION. This manual, Pavements, NAVFAC DM-5.4, cancels and supersedes
Chapter 4, Civil Engineering, NAVFAC DM-5, of April 1974.
4. PAVEMENT TYPES. Both rigid and flexible pavements are satisfactory for
roads, streets, and parking areas.
a. Rigid Pavements. Rigid pavements are constructed
of a portland cement
concrete surfacing and usually include a granular base
course. Rigid pavements
are resistant to petroleum products and should be used
in vehicle fueling and
service areas. Consider using rigid pavements in areas
designated for
motorcycle parking where high unit loads on kickstands
may distort flexible
pavement in hot weather.
b. Flexible Pavements. The term flexible pavement refers to all pavement
types having a bituminous surface. For most types of road construction,
flexible pavement is preferred due to lower initial cost. Flexible-type
pavements are more readily adaptable to stage construction and may also be
more suitable where settlements are expected.
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