Evaluation of Roundabout Performance in the Sudirman Central Business District (SCBD), Jakarta
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Abstract
The Sudirman Central Business District (SCBD) in Jakarta is characterized by high-intensity, mixed-use activities that generate substantial traffic demand throughout the day. This study evaluates the operational performance of the Lot 13 roundabout, one of the district’s critical internal nodes, using a combination of field observations, analytical assessment, and a microscopic simulation model developed in PTV Vissim. The simulation approach was selected because similar roundabout studies in Indonesia remain largely dominated by analytical capacity assessment, with fewer calibrated microsimulation-based evaluations in dense CBD environments characterized by mixed traffic and high roadside friction.. Traffic data were collected at 15-minute intervals during peak periods and used to construct a detailed behavioural model calibrated to local driving characteristics, including short headways and aggressive merging behaviour typical of mixed traffic in Indonesia. The results reveal severe oversaturation on the Sudirman–Grand Lucky and Sudirman–BEI legs, where maximum queue lengths exceed 550 meters, delays surpassing 70–100 seconds per vehicle, and circulating speeds reduced to 12–18 km/hour, placing the roundabout at Level of Service F. Geometric constraints, high roadside friction, and unbalanced approach volumes further degrade operational capacity, demonstrating that the current unsignalized configuration is insufficient to accommodate prevailing demand. The findings suggest that adaptive signal control or metering signals may represent promising options for further operational performance by creating controlled entry gaps and reducing conflict intensity. The study provides a site-specific operational diagnosis of the Lot 13 roundabout and highlights the combined role of unbalanced approach demand, limited effective entry capacity, and roadside friction in shaping queue formation, delay, and flow breakdown in a dense CBD setting. Recommendations for future research include the evaluation of multi-scenario design alternatives and the assessment of broader network-level impacts to support long-term mobility planning in SCBD.
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[2] W. Brilon, “Roundabouts: A state of the art in Germany,” in National Roundabout Conference: 2005 Proceedings, in Transportation Research Circular. Washington, D.C.: Transportation Research Board, 2005. [Online]. Available: http://onlinepubs.trb.org/Onlinepubs/circulars/ec083/36_Brilonpaper.pdf
[3] Direktorat Jenderal Bina Marga, “Manual Kapasitas Jalan Indonesia (MKJI 1997),” Kementerian Pekerjaan Umum RI, Jakarta, 1997.
[4] M. Klobučar, A. Deluka-Tibljaš, S. Šurdonja, and I. Ištoka Otković, “A theoretical model for optimizing signalized intersection and roundabout distance using microsimulations,” Future Transportation, vol. 5, no. 1, p. 28, Mar. 2025, doi: 10.3390/futuretransp5010028.
[5] C.-J. Jin, V. L. Knoop, D. Li, L.-Y. Meng, and H. Wang, “Discretionary lane-changing behavior: Empirical validation for one realistic rule-based model,” Transportmetrica A: Transport Science, vol. 15, no. 2, pp. 244–262, Nov. 2019, doi: 10.1080/23249935.2018.1464526.
[6] L. Rodegerdts et al., “Roundabouts: An informational guide, Second Edition,” Transportation Research Board, Washington, D.C., 2010.
[7] L. T. Trinh, “Development of microscopic simulation model for heterogeneous traffic at roundabout,” Doctoral Thesis, Nagaoka University of Technology, Japan, 2020. [Online]. Available: https://www.researchgate.net/publication/361549916_Development_of_Microscopic_Simulation_Model_for_Heterogeneous_Traffic_at_Roundabout
[8] D. Taglieri, “Urban traffic network operations: Roundabouts vs Signalized intersections,” M.S. Thesis, Pennsylvania State University, United States, 2022.
[9] B. Gautam, A. Bajimaya, A. Karki, G. K. Yadav, B. Balami, and P. K. Shrestha, “Analysis of the effectiveness of the erformance of flyover using VISSIM: A case study of Satdobato intersection,” International Journal of Engineering Technology and Innovation Development, vol. 2, no. 1, pp. 143–155, 2025.
[10] Badan Pengelola Transportasi Jabodetabek, “Pedoman Kapasitas Jalan Indonesia (PKJI 2023),” Kementerian Perhubungan Republik Indonesia, Jakarta, 2023.
[11] W. I. Dharmawan, D. Oktarina, and H. Syahroni, “Analisa kinerja bundaran menggunakan metode Manual Kapasitas Jalan Indonesia (MKJI),” jts, vol. 12, no. 2, pp. 111–120, Mar. 2019, doi: 10.28932/jts.v12i2.1419.
[12] A. P. Putra and L. Purwanti, “Analisis kinerja bundaran Leuwigajah: Studi kasus di Kabupaten Bandung,” Jurnal Teknik Sipil, vol. 15, no. 3, pp. 301–310, 2019.
[13] I. Sukmawati, S. N. Kadarini, and S. Sumiyattinah, “Analisis dan evaluasi kinerja bundaran 1001 AI Kota Singkawang,” Jurnal Teknik Kelautan, PWK, Sipil, dan Tambang, vol. 9, no. 2, pp. 123–135, 2022.
[14] Transportation Research Board, Highway Capacity Manual (HCM). Washington, D.C.: National Academies of Sciences, Engineering, and Medicine, 2022.
[15] Google My Maps, “SCBD road network structure,” Nov. 2025.
[16] Google Maps, “Lot 13 SCBD geometric layout,” Nov. 2025.
[17] S. R. Fadilah, S. S. Wibowo, and R. B. Frazila, “Assessment of Pedestrian Level of Service for Airport Access Mode Facilities (Case Study: Sultan Mahmud Badaruddin II International Airport, Palembang),” Mar. 11, 2022, Eastern Asia Society for Transportation Studies: 0. doi: 10.11175/easts.14.1502.
[18] S. R. Fadilah, H. Nishiuchi, and A. M. Ngoc, “Identifying the role of route choice behavior of motorcycle riders in microscopic simulation modeling under mixed traffic conditions,” Transportation Research Interdisciplinary Perspectives, vol. 28, p. 101247, Nov. 2024, doi: 10.1016/j.trip.2024.101247.
[19] L. P. Vasconcelos, Á. J. M. Seco, A. B. Silva, T. Abreu, and J. P. Silva, “A comparison of roundabout capacity models,” in Proceedings of the 23rd IASTED International Conference on Modelling and Simulation, Banff, Canada, 2012, pp. 251–258.
[20] S. Manage, H. Nakamura, and K. Suzuki, “Performance analysis of roundabouts as an alternative for intersection control in Japan,” Journal of the Eastern Asia Society for Transportation Studies, vol. 5, pp. 871–883, 2003.
[21] R. Al-Haideri, K. Ismail, and A. Weiss, “Beyond traditional models: a discrete choice approach to vehicle interaction modelling at roundabouts,” Transportmetrica A: Transport Science, pp. 1–45, Sep. 2025, doi: 10.1080/23249935.2025.2552982.
[22] G. S. Diwakar and A. Ghosal, “Priority violation influence on roundabout safety in mixed traffic conditions,” Advances in Transportation Studies, pp. 32–45, 2025.
[23] M. Subotić, B. Stević, B. Ristić, S. Simić, and University of East Sarajevo, Faculty of Transport and Traffic Engineering Doboj, Bosnia and Herzegovina, “The selection of a location for potential roundabout construction – A case study of Doboj,” Oper. Res. Eng. Sci. Theor. Appl., vol. 4, no. 1, pp. 42–55, 2020, doi: 10.31181/oresta2002041s.
[24] S. Sánchez–Mateo, E. Pérez–Moreno, and F. Jiménez, “Driver monitoring for a driver-centered design and assessment of a merging assistance system based on V2V communications,” Sensors, vol. 20, no. 19, p. 5582, Sep. 2020, doi: 10.3390/s20195582.
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