Applied Engineering, Innovation, and Technology

Vol. 2 No. 2 (2025)
Articles

Evaluation of Road Performance under the Influence of Volunteer Traffic Regulators (Supeltas): A Case Study in Pekanbaru

pdf (English)
  • Surya Abdillah Zebua
Surya Abdillah Zebua
Universitas Islam Riau, Indonesia

Published 09-10-2025

Keywords

  • Supeltas,
  • Traffic Congestion,
  • U-Turn,
  • Traffic Performance,
  • Volunteer Traffic Regulators,
  • Pekanbaru
    • ...More
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Copyright (c) 2025 Surya Abdillah Zebua (Author)

Creative Commons License

This work is licensed under a Creative Commons Attribution 4.0 International License.

How to Cite

[1]
S. A. Zebua, “Evaluation of Road Performance under the Influence of Volunteer Traffic Regulators (Supeltas): A Case Study in Pekanbaru”, Appl. Eng. Innov. Tech., vol. 2, no. 2, pp. 98–105, Oct. 2025, doi: 10.62777/aeit.v2i2.54.

Abstract

Traffic congestion remains a major challenge in Indonesian cities, where limited enforcement capacity has led to the emergence of Volunteer Traffic Regulators (Supeltas) as community-based traffic managers. This study evaluates the impact of Supeltas on traffic performance at a U-turn on Jl. Soekarno Hatta, Pekanbaru City. A mixed-method approach combining qualitative observation and quantitative road performance analysis was employed, following the Indonesian Road Capacity Guidelines (PKJI) and U-turn Planning Guidelines (PPPB). Traffic data were collected over two weeks under conditions with and without Supeltas. The results show that Supeltas increase vehicle volume at the U-turn (from 2,131 to 2,168 pcu/hour) but also reduce average speed (from 42 km/h to 37 km/h) and raise the degree of saturation from 0.36 to 0.49, shifting the Level of Service from B to C. These findings indicate that while Supeltas help manage driver behavior and encourage U-turn utilization, their presence also contributes to higher congestion levels due to inconsistent manual signaling. Improved Supeltas training and dedicated U-turn lanes are recommended to enhance operational efficiency and safety.

pdf (English)

References

  1. S. Chalermpong, A. Ratanawaraha, and Y. Uchiyama, “Informal and Shared Mobility - Status, Challenges, and Opportunities in Southeast Asia,” Gothenburg, Mar. 2025.
  2. Badan Pusat Statistik, “Statistik Transportasi Darat 2022,” Jakarta, 2023.
  3. M. Omarov, S. Ismail, W. N. M. W. M. Rani, and S. Durdyev, “Estimation of Traffic Delay Due to U-Turns at Uncontrolled Medians: Case Study in Phnom Penh, Cambodia,” Sustainability, vol. 14, no. 1, p. 118, Dec. 2021, doi: 10.3390/su14010118.
  4. T. Jenjiwattanakul, K. Sano, and H. Nishiuchi, “Capacity of U-turn Junction at Midblock Median Opening on Urban Arterial Based on Balancing Volume-to-capacity Ratio,” Journal of the Eastern Asia Society for Transportation Studies, vol. 10, pp. 1670–1686, 2013.
  5. D. R. N. Isnaini and P. Patmisari, “The Role of Supeltas in Improving Traffic Safety in Kartasura as an Implications of Developing School Security Patrol Skills,” in Proceeding ISETH (International Summit on Science, Technology, and Humanity), 2024, pp. 1785–1793.
  6. D. F. Azhari, “Pengaruh Sukarelawan Pengatur Lalu Lintas (SPELTAS) terhadap Kemacetan Pergerakan Skala Kawasan Di Koridor Jl-Hertasning-Jl Tun Abdul Razak,” Universitas Islam Negeri Alauddin Makassar, 2019.
  7. A. Mukahfi, “Analisis Pengaruh Jarak Antar U-Turn Terhadap Kinerja Jalan (Studi Kasus Jalan Zainal Abidin Pagar Alam Bandar Lampung),” Universitas Lampung, 2015.
  8. A. I. Titirlolobi, E. Lintong, and J. A. Timboeleng, “Analisa Kinerja Ruas Jalan Hasanuddin Kota Manado,” Jurnal Sipil Statik, vol. 4, no. 7, pp. 423–431, 2016.
  9. D. G. N. da Costa, E. Kalogo, D. Arakian, M. I. R. Naikofi, C. C. Manubulu, and O. E. Semiun, “Effect of the Right Turning Movement to Road Urban Performance,” in the 4th International Conference on Sustainable Innovation 2020–Technology, Engineering and Agriculture (ICoSITEA 2020), 2021. doi: 10.2991/aer.k.210204.001.
  10. R. B. Kota and A. Mehar, “Roadway and Traffic Attributes Influencing Occupancy Time of Minor-Road Right-Turning Vehicles at Urban Uncontrolled Intersections,” U.Porto Journal of Engineering, vol. 9, no. 1, pp. 122–133, Jan. 2023, doi: 10.24840/2183-6493_009-001_001468.
  11. E. E. Anton, A. C. S. Iskandar, A. Zakariah, E. Todingan, and H. Hanafi, “Modeling median U-turn to enhance road level of service: A case study at Aroeppala street, Makassar city, Indonesia,” 2024, p. 050009. doi: 10.1063/5.0221051.
  12. F. R. Muharam, T. S. Nugroho, and W. Weningtyas, “Evaluating U-Turn Capacity with Modified Geometry Designs and Various Conflicting Traffic Flows: A Traffic Microsimulation Approach,” Civil Engineering Dimension, vol. 27, no. 1, pp. 73–84, Mar. 2025, doi: 10.9744/ced.27.1.73-84.
  13. S. A. Javed, A. G. Tusti, B. Pandey, and S. Das, “From Maneuver to Mishap: A Systematic Literature Review on U-Turn Safety Risks,” 2025.
  14. R. Ramlan, M. Z. Irawan, and A. Munawar, “The impact of the existence of the volunteer on handling the waiting time at unsignalized intersection in Yogyakarta, Indonesia,” IATSS Research, vol. 44, no. 4, pp. 265–271, Dec. 2020, doi: 10.1016/j.iatssr.2020.04.001.
  15. V. A. Gracian et al., “Behavioral models of drivers in developing countries with an agent-based perspective: a literature review,” Autonomous Intelligent Systems, vol. 4, no. 1, p. 5, Apr. 2024, doi: 10.1007/s43684-024-00061-1.
  16. Direktorat Jenderal Bina Marga, Pedoman Kapasitas Jalan Indonesia. Indonesia, 2023.
  17. Direktorat Jenderal Bina Marga, Pedoman Perencanaan Putaran Balik (U-Turn). Indonesia, 2005.