PAVEMENT
Rezqallah H. Ramadhan, Hamad 1. Al-Abdul Wahhab,
and Khalaf A. Al-Ofi
ABSTRACT:
This
paper describes the procedure followed to the development of pavement
maintenance priority ranking using a composite index methodology. In this
procedure, the factors affecting ranking of pavement sections were identified
and their values were quantified. The weight of importance of each of these
factors was determined by using specially designed questionnaire. The local
perception towards the maintenance priority ranking was captured. Different
groups of individuals such as managers, engineers, academicians, and other road
users were asked to estimate the importance weight of priority factors. The
factors included in this study were road class, pavement condition, operating
traffic, riding quality, safety condition, maintenance cost, and the overall
importance of road section to community. The weight of importance scale
obtained in this study was verified by using another questionnaire following
the analytical hierarchy process (AHP) using pair-wise comparison technique.
The
developed composite index priority ranking procedure was validated by two real
case studies where the results of local experience of engineering judgment for
maintenance projects priority ranking were compared to the ranking of the
developed procedure for the same cases. This comparison was found to be logical
and statistically sound which implies that the developed procedure can capture
the engineering judgment and efficiently handles the ranking of huge number of
pavement sections according to their importance or urgency for maintenance and
repair.