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All Journal Jurnal Rekayasa Sipil dan Lingkungan Warta Penelitian Perhubungan Journal of Environmental Science and Sustainable Development Journal of Indonesia Road Safety International Journal on Advanced Technology, Engineering, and Information System (IJATEIS) Smart City Makara Journal of Technology Warta Penelitian Perhubungan
Martha Leni Siregar
Civil Engineering Dept., Fac. Of Engineering, Universitas Indonesia
Humanities Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Decision Sciences, Operations Research & Management Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mechanical Engineering Social Sciences Transportation

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Journal : Smart City

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Impact of Auxiliary Markings on Intersection Safety Franata, Mhd Tommy; Siregar, Martha Leni; Kusuma, Andyka
Smart City Vol. 4, No. 2
Publisher : UI Scholars Hub

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Abstract

The rapid growth of motorcycle vehicles coupled with inadequate traffic discipline contributes to an escalating rate of traffic accidents and casualties. This study investigates the efficacy of auxiliary road markings in enhancing traffic safety and intersection performance along Lieutenant Sutopo Street, Promoter Street, and Boulevard BSD East in South Tangerang, Indonesia. Employing the Traffic Conflict Technique (TCT), the research evaluates safety enhancements and service level alterations subsequent to the installation of road markings. Preliminary observations highlight significant safety concerns and traffic conflicts at the intersection. Consequently, auxiliary road markings are strategically installed to regulate driver behavior, enhance lane discipline, and improve visibility. Post-installation observations revealed a significant decrease in total vehicle conflicts, though the percentage of severe conflicts slightly increased. Initially rated as Level of Service (LOS) F with high delays, the LOS remained the same post-marking installation but with reduced delays. Further cycle time adjustments improved the LOS to E, indicating a substantial overall reduction in delays. The findings suggest that although auxiliary road markings effectively reduce traffic conflicts and improve intersection performance, additional measures are necessary to address the severity of these conflicts. The study offers valuable insights into the effectiveness of road safety interventions, supporting broader strategies for improving traffic management and safety in urban areas.
ANALYSIS OF THE RELATIONSHIP BETWEEN SPEED CONSISTENCY AND TRAFFIC ACCIDENT PROBABILITY (ON THE MOJOKERTO-SURABAYA TOLL ROAD) RISFIANDI, RIKI; Siregar, Martha Leni
Smart City Vol. 4, No. 2
Publisher : UI Scholars Hub

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Abstract

Vehicle speed consistency plays a crucial role in maintaining traffic safety, with speed limits set to reduce accident fatalities. While the direct impact of speed limits on vehicle speed is minimal, their implementation significantly influences driver behavior, with about 85% of drivers complying with speed limits. However, variables such as traffic volume, weather conditions, and travel urgency often cause drivers to be inconsistent in adhering to these limits, increasing accident risk. On the Mojokerto-Surabaya toll road, data from Traffic Corps and Jasa Marga recorded 193 accidents with 101 fatalities from 2018 to August 2023, mostly caused by driver behavior such as excessive speed. This study analyzes the relationship between speed consistency and accident probability on this road, highlighting accident issues due to speed violations and inconsistency at ramp off/on locations. Results show the importance of toll road infrastructure considering vehicle volume, identifying accident blackspots, and implementing urgent speed management as key factors in improving safety on the Surabaya-Mojokerto toll road. The findings emphasize the need for better traffic management and speed regulation to reduce fatal accident risks.
Co-Authors Adhikaratma, Hizkia Ahmad Septiawan Ahmad Septiawan Dewi, Ari Tri Kusuma Fadhliya Afifa Arifin, Fadhliya Afifa Franata, Mhd Tommy Guritnaningsih Guritnaningsih Guterres, Joao Antonio Heddy R, Agah, Heddy R, Hizkia Adhikaratma Jachrizal Sumabrata Karina . Kusuma, Andyka Muhammad Rifqi Kinansyahputra Nugraha, Brian Nararya Nurcahyati, Sekar Warangi Putri, Atissa Dwi Ridha, Mujib RISFIANDI, RIKI Sutanto Soehodho Tri Tjahjono Tuti Alawiyah