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City of Balikpapan, Indonesia

Tamin R.Z.,Bandung Institute of Technology | Tamin A.Z.,Directorate General of Highways | Marzuki P.F.,Bandung Institute of Technology
Procedia Engineering

In the framework of the Indonesian national roads' service quality improvement, Performance Based Contract (PBC), with a Design (D) - Build (B) - Operate (O) - Maintenance (M) project delivery system, deserves to be seriously considered. This paper analyzes the opportunity and challenges of PBC implementation that suits the Indonesian national road management system. It is revealed that the benefits of PBC will be gained if contractors are allowed to develop their creativity and innovation during design and construction, improve their productivity and efficiency during operation, and identify accurately the risks transferred to them by service users. It is also described that national roads have to be operated as planned according to the design Annual Average Daily Traffic (AADT) and control on overloading should be exercised during the roads' design life in order to benefit from PBC. As long as these requirements are fulfilled, simulations on unpaved national roads have shown promising results, which include lower investment compared to DBB project delivery system, better guarantee of road condition during design life, and only a slightly higher monthly performance cost compared to the usual maintenance cost. Source

Kamaruddin I.,Petronas University of Technology | Soelistijo A.,Directorate General of Highways | Napiah M.,Petronas University of Technology
WIT Transactions on the Built Environment

The design of road pavement material seeks to obtain a durable, mechanically strong system that is able to resist dynamic traffic loadings without causing distresses to the pavement due to loading and environmental factors. In addition, the design of the material must consider the economics of construction and maintenance. Road bituminous materials as used worldwide normally are of gap-graded material (Hot-Rolled Asphalt) or well-graded material (Asphaltic Concrete). Both materials have advantages and disadvantages. This study attempts to compare the engineering properties of these two road materials. In addition, the workability of both materials will be assessed, which relates to the energy required in the production, handling and compaction of the mixtures. The durability of the material is a concern to engineers as the material is exposed to both air and water. This is reflected in the permeability of the material, which in this study is assessed by an air permeameter. © 2010 WIT Press. Source

Wu Y.-L.,Directorate General of Highways | Li C.-C.,National Central University | Hung C.-T.,Kainan University
International Journal of Pavement Research and Technology

With limited budgetsand increasing pressure from related stakeholders, together with the threat of extreme weather, we may need brand-new thinking in PMS implementation. The purpose of this article is to explorehowgovernance function may link to sustainabilityregarding PMS implementation. Our theoretical analysis found that governance notion and a sound governance structure may help top management in dealing with inter-agency affairs and aligning customers'needswith an agency's goal. Also, a holistic sustainable framework for pavement management allows us to takefrom a broader consideration within the pavement context. In the empiricalstudy, we used aQuality Function Deployment (QFD) matrix that can incorporate 7 customers'needs into 25 technical requirements. After the revision of relative importance including subjective and objective weights, 10 performance indicators through sustainability perspective have been established. © Chinese Society of Pavement Engineering. Source

Lee W.F.,National Taiwan University of Science and Technology | Abe M.,BMC Corporation | Cubrinovski M.,University of Canterbury | Yen C.I.,National Taiwan University of Science and Technology | And 2 more authors.
Forensic Engineering: Informing the Future with Lessons from the Past - Proceedings of the 5th International Conference on Forensic Engineering

This paper is aim to report authors' work on forensic investigation and perfonnance analysis of bridges under recent major natural hazards, including 2009 Typhoon Morakot in Taiwan, 2010-2011 Christchurch Earthquakes in New Zealand, and 2011 Tohoku Earthquake in Japan. In each studied case, reconnaissance works of bridge failures are first presented. Forensic analyses on damage causes or bridge performance are then introduced in details. In addition to the case studies, an integrated multi-hazard monitoring system for safety warning and perfonnance analysis is also introduced including its verification during 2009 Typhoon Morakot. Lastly, lessons learned as well as engineers' awareness to multi-hazards including design improvement and safety monitoring are summarized. Source

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