dc.description.abstract |
Road infrastructure is a crucial public asset that is essential for local economic
growth, social connection, and improved access to jobs, education, and health care.
In this infrastructure, good pavement maintenance management system plays an
essential and integral part to continue the serviceability of roads. An efficient
pavement maintenance management system(PMMS) assists pavement engineers and
authorities in funding cost-effective strategies and making consistent decisions for
providing, evaluating, and maintaining pavements in a serviceable condition.
Highway Development and Management System (HDM-4) is deployed to predict
future technical and economic outcomes of potential investment decisions regarding
the maintenance management of road networks. The objectives of this study were to
investigate current PMMS practices and to develop PMMS for a selected asphalt
road in the Ethiopian Roads Administration (ERA) Gondar Road Maintenance
District. The study is carried out through questionnaires and archival documents
from the ERA. The collected data were analyzed by using Excel and HDM-4 project
analysis module. HDM-4 project analysis module was used to select the optimum
maintenance alternative from four different maintenance alternative strategies. From
the result, condition survey data were gathered by using the manual method and the
most common challenges faced during conducting condition survey are timeconsuming
and subjectivity. The most significant factors used in the prioritization of
roads for maintenance are budget availability, classification of roads, and pavement
condition. Moreover, this study identifies the most common challenges faced during
the implementation of PMMS are inadequate pavement maintenance funds,
inadequate quality of the maintenance roads, lack of systematic approach, shortage of
qualified technical staff, and missing or unreliable road condition data. According to
the results generated through HDM-4, Alternative 3 (Thick overlay 50mm) has been
selected as a more economical maintenance and rehabilitation strategy for all the
road sections. Based on the results, recommendations were provided to help the ERA
Gondar Road Maintenance District improve the current PMMS.
Keywords— Pavement Maintenance Management System, Highway Development
and Management HDM-4 |
en_US |