Analysis Unsustainable Transportation Using Theory of Constraint With Islamic Principle Combining With Quality Function Deployment Method (Case Study: Sustainable Development Goals 9)

Abstract

One concern faced by the UN is the unsustainability of the transportation system which causes various problems, such as high levels of emissions, climate conditions that continue to deteriorate due to global warming, the issue of the availability of reserve energy for the next generation. This study aims to develop a framework in the form of a logic tree from the Theory of Constraint (TOC) method, in order to analyse the factors that hinder sustainable transportation through literature study of previous research. The findings show the high ownership of private vehicles, public transportation facilities that are not evenly distributed, and the high demand for fossil fuel use is an issue that must be addressed immediately. Islamic principles are used as injection to guide the development process towards sustainable transportation. Based on the findings obtained related to the inability to create sustainable transportation, in this study the Quality Function Deployment (QFD) was chosen to be able to translate the demand of DI. Yogyakarta transportation system users using the QFD matrix, namely the House of Quality (HOQ) related to what improvements are desired to be implemented. The final results of this study through QFD method, obtained the Proposed Framework of Improvement Design as a response to functional targets which determined based on expert judgment and recommendations.