System Dynamics Model for Congestion Level Analysis in Yogyakarta City
This study aims to carry out various levels of congestion in Yogyakarta using the System Dynamics methodological approach. The research results on the congestion level in Yogyakarta reached the maximum value in 2033, based on research with the policy of reducing the number of motorcycles and passenger cars to reduce congestion levels until 2050. Policy Studies are significant to develop a dynamic simulation model to understand the interaction between various factors in the complex system, scenario policies are expected to reduce congestion in the future and are expected to provide better policy outcomes
 D. Firmansyah and I. A. . Tjahjani, "Analysis of Traffic Congestion in an Area (Case Study on Lenteng Agung Streets)," in National Seminar on Civil Engineering UMS, 2012, pp. 134–140.
 A. Alhadar, "Analysis of Road Performance to Overcome Traffic Congestion at Signalized Intersections in Palu City," J. SMARTek, vol. 9, no. 4, pp. 327–336, 2011.
 I. Abbas, N. Badwi, Suprapta, and D. Qaiyimah, “Analysis of Congestion in Several Roads in Somba Opu, Gowa Regency,” J. Environ. Sci., vol. 3, no. 1, pp. 50–52, 2020.
 B. P. S. K. Yogyakarta, City of Yogyakarta in Figures (Yogyakarta Municipality In Figures). Yogyakarta: BPS Yogyakarta City, 2019.
 “Damn! Traffic Density of Yogyakarta Approaching Saturation Point,” 2021. https://news.okezone.com/read/2017/09/30/510/1786214/gawat-kepadatan-lalu-lintas-yogyakarta-dekati-titik-jenuh (accessed Jul. 09, 2021)
 E. T. Mukti, A. Sjafruddin, and A. Kusumawati, “A Review of the Use of System Dynamics Models in Transportation Safety Policy,” 17th FSTPT Int. Sym. Jember Univ., pp. 1045–1053, 2014.
 I. Firmansyah, Powersim Studio Application for Dynamic Systems. Bogor: Triwala Press, 2015.
 H. H, System Dynamics: System Concepts and Modeling for Industry and the Environment. Bogor: SEAMEO BIOTROP, 2007.
 Muhammadi, A. E, and S. B, Dynamic System Analysis. Jakarta: UMJ Press, 2001
 Widiatmaka, W. Ambarwulan, I. Firmansyah, K. Munibah, P. Santoso, and Sudarsono, “Land Suitability and Dynamic System Modeling To Define Priority Areas Of Soybean Plantation In Paddy Fields In Karawang, West Java,” Agrivita, vol. 3, no. 36, pp. 235–248, 2014a.
 Pamudi, "Application of Dynamic Systems in Intelligent Transportation Systems to Reduce Traffic Safety Increase (Case Study of the Surabaya City Transportation Service)," Sepuluh Nopember Institute of Technology Surabaya, 2018