System dynamics is a methodology that takes the information about a system’s structure and formalises it into a computer related model using the concepts of system thinking. The word “dynamic” implies constant change, and indeed, that is what systems do-change over time. The basic building blocks of system dynamics are stock, flows and feedback loops. Stocks are accumulators and flows define the rate that stock are filled or emptied.
Simulation of dynamic systems can be used for the analysis of urban congestion. So it can determine the appropriate policy strategy. For congestion can be addressed immediately. For example in Indonesia’s capital, Jakarta. Congestion is influenced by several factors such as mass transit busway, private vehicles, widening roads, and population growth. One tool is to use a software simulation Powersim.
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