Evaluation of Existing Pavement Distress for Part of Nablus City Road Network by Utilizing ArcMap-GIS
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Date
2021
Authors
Wedad Emad Zyoud
Rasha Mahmoud Abu Amer
Hind Khalid Tayem
Bayan Rabah Dweikat
Journal Title
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Abstract
The students selected Nablus city to apply their case study because it is one of the most
important Palestinian cities in different aspects. Nablus is considered the capital of North
West Bank. Recently, several important and vital roads in Nablus have different types of
pavement defects and distresses. Accordingly, it is very important to study these defects such
as Alligator Cracking, Block Cracking, Longitudinal (Linear) Cracking, Transverse Cracking,
Edge Cracks, and Joint Reflection Cracks, deformations, etc. Any road network is expected
to suffer from these problems during their life cycle. These problems are negatively affect
road users and consequently may cause traffic accidents. The case study includes major city
roads with a total length of about 6500 meters. These roads are chosen in the western area of
Nablus, including Rafidia (Yasser Arafat), Adeeb Mihyar ,Omer ibn Al-Khattab and Mohd
Bin Rashid Al-Maktom roads .In Graduation Project 1, the roads are divided into sections in
both directions with 100 meters long and the Pavement Condition Index (PCI) is calculated to
assess the status of each section. In Graduation Project 2, the GP team collect data, like
coordinates, station and the existing pavement distresses in terms of density and severity for
each type of defects.
The objective of this study is the same of the Graduation Project 1, but by using different
method and more accurate which is to evaluate the pavement conditions of the selected
targeted roads by utilizing GIS software and by using different method of interpolation such
as IDW, Spline, Trend and Kriging methods ,and select the best method, then the result of
traditional and GIS were compared .The Graduation Project team was assessed the conditions
of the pavement and studied specific type of defects that exists in the targeted roads in terms
of severity and density. After that, all collected data were inserted in the GIS software
including covering all targeted roads and several maps were prepared and generated.
The GIS software was used to present the evaluation of each point and the proposed
maintenance based on the PCI value which was calculated by GIS software using
interpolation prosses.
The study helps in identifying the sections or points on roads that need priority in
maintenance. Moreover, the cost of the action and treatment applied are easy to be calculated
for each section. The collected data are expected also to help in predicting the future
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conditions of the targeted sections and accordingly identified the proper maintenance strategy
and actions.
The GP students collected all relevant data for the targeted roads in the study area by visiting
the site. The students collect data for each defect in term of coordinates, station and the
existing pavement distresses in terms of density and severity for all roads in both directions.
Finally, this project is expected to help Nablus municipality in identifying the critical sections
that need urgent maintenance which will contribute in saving time and money. Moreover, the
road serviceability in terms of riding comfort is expected also to be improved and accordingly
minimizing traffic accidents.