ROAD MAINTENANCE SERVICES
“Probably the most valuable tool for any
maintenance program is
the knowledge and experience gained by individuals
performing themaintenance. Every effort should be made to
retain competent,
knowledgeable, and experienced individuals in these
positions not
only from the standpoint of instituting and executing a
good
maintenance program, but for future road planning needs as
well”.
PCN as a regular supplier of road maintenance services
to the major haulingcoal roads understood that the
successful implementation of an unsealed roads maintenance
intervention strategy is not a precise science and is
highlydependent on achieving ownership of the strategy by
the implementation crew
and more consultation with experienced is needed to
maximize the localknowledge and experience that already
exist, to understand the ever-changinginfluences that need
to be evaluated on a daily basis.Road Maintenance can be
defined as those activities that are intended to maintain
the serviceability of a road, due to the deterioration
caused by trafficand climate. Every road, no matter how
carefully designed and constructed, will deteriorate
as a result of traffic movements, climate conditions and
the properties of
The main objectives of maintaining a road
are to:
Minimize Safety Hazards to Vehicular Traffics
Meet Community Level of Expectations
Provide a good riding surface
Carry heavy traffic load
pavement materials. Regular maintenance is therefore
essential to provide thedesired level of service for each
road in the network. The main concern of road construction
and maintenance is the property of soil with their ability
to support the load. Mud
and dust are all characteristic of bad road. Most road
fail is due to the adsorption of water causing road
foundation isnot strong enough. Maintenance operations are
classified into reactive maintenance activities thatoccur
after identification of the defect and proactive
operations, which involve the advanced predictions of
future defects.
Generally maintenance activities will be
undertaken into 2 categories:
1.Cyclic (Proactive) maintenance comprises of the
following activities Cyclic maintenance grading Drainage
maintenance Wear course metalling
2.Periodic (Reactive) maintenance activitiesPeriodic maintenance grading
Spot metalling
Shape rotation metalling
The primary purpose of cyclic maintenance grading is to
provide the road user
with a safe driving surface through the elimination of
corrugations and rutting,
retaining a consistent aggregate wearing course and
maintaining the pavement
crossfall.
Cyclic grading frequencies are influenced by
various factors as follows:
•Network demands
•Pavement condition
•Climatic conditions
•Shape
•Standard of drainage structure
•Community levels of service expectations
Where road sections have deteriorated below the specified
level of service between cyclic grading frequencies, which
pose a safety hazard or have developed into localized
defects, these areas will be addressed independently to
scheduled cyclic maintenance grading by the following:
•Periodic maintenance grading scheduled between cyclic
grading frequencies.
•Grading in conjunction with spot metalling or shape
restoration metalling operations.
PCN strategy on current unsealed road network cyclic
maintenance grading in South Kalimantan is managed by
dividing the network into the subsection of road to
encourage operator ownership, accountability, and ensures
a consistent of service level is maintained across the
entire of road network. Bench marking is also carried out
between subsection focused on operator productivity and
quality.