ROAD CONSTRUCTION Flashcards
Types of Road According to
Usage
National Road
Provincial Road
City Road
Municipal Road
Barangay
the main highway trunk
line system that is continuous in extent that goes
from province to province and region to region.
Primary National Road
connects a provincial or
national road to a public wharf or railway station.
Secondary National Road
connects two
municipalities or cities within a province
Provincial Road
street within the urban area of the
city.
City Road
street within the poblacion
area of a municipality.
Municipal Road
Road–street located outside the
poblacion area of a municipality or urban area
of a city and those outside industrial,
commercial areas or residential subdivisions.
Barangay Road
Types of Road According
to National Importance
Major roads = are those roads of national
importance. They are frequently used by traffic
and leads to vital areas such as major cities and
installations.
Minor+roads are roads which is local in nature as
it serves only the interest of the locality such as a
street.
can accommodate greater
traffic volume.
Highway
serves service area
connecting to highways.
Street or road
Types of Road According
to Surface Course
Earth Road
Gravel Road
Asphalt Road
Concrete Road
It is the simplest form of road constructed by
shaping and smoothing the natural soil
traversed by the road line.
Earth Road
It is sometimes termed as an “all weather road”
and are used to construct Farm to Market
Roads which serves to connect rural and
agricultural areas to market towns.
Gravel Road
It is frequently described as “flexible pavement”
implying its ability to absorb the stresses
imposed by traffic and weather without
cracking.
Asphalt Road
It is sometimes termed “rigid pavement” because it is
strong in resisting compressive load but weak in
resisting tensile stresses.
PCC Pavement Road……
Types of Road According
to Traffic Volume
For heavy traffic load
For medium traffic load
For light traffic load
Main Road Components
Subgrade
Aggregate sub-base course
Aggregate base course
Surface course
Drainage structures
Slope protection/retaining structures
Miscellaneous Works
is the upper layer of natural soil which
may be the undisturbed local materials, or soil
excavated elsewhere placed as fill.
In either case, it is compacted during construction for
road stability.
Subgrade-
are
individual stabilizing layers of selected material and
designed thickness placed on top of the subgrade to
distribute the load transmitted from the surface
course.
Aggregate Subbase and Base Courses
