FACTORS INFLUENCING DECISION MAKING PROCESS OF TRANSPORTATION INFRASTRUCTURE PROJECT IN NATURAL EXTREME CONDITION: A CASE STUDY OF SEMARANG-SOLO TOLL ROAD PROJECT

Abstract

Transportation infrastructure is an important part of the economic growth and activities pattern in the urban area. Toll road is a priority in transportation development in Indonesia. A number of factors in a transportation project, such geotechnical situation and structural reviews that may effect time performance and decision making in relation to project risks (such as risk seeking, risk adverse, and skills requirements of the employers). It is important that these factors are identified and their impact on project performance is properly understood. This paper reports a research which attempts to model decision making factors based on mixed metodology. Semarang-Solo toll road project as the one of the biggest infrastructure project has many uncertainty natural extreme condition such as extreme slope stability, high embankment, reposisioning drainage, and unpredictable cesar at some station. That situation cause the project managers take the risks to make a decision based on the design and some engineering adjustments at the location. The model decision making factors will be useful for project managers to make decisions under uncertainty of future risks in the toll road project.