A near-miss is an unplanned event that can precede events in which a loss or injury could occur. Therefore, it is an indicator leading to an accident. Near-miss analysis does not look at what happened but look into what could have happened. Serious conflicts are the result of a breakdown in the interaction between the road user, environment and vehicle, which leads to traffic accidents. As the similarity between accidents and serious conflicts is striking, accidents can basically be prevented by isolating and handling the conflicts potentials. The Swedish Traffic Conflict analysis of near-miss accidents is adopted in this study to improve the traffic safety of a channelized junction with U-turn at LentengAgung, Jakarta. The junction is a two-way junction with a wide median and an island. The location has been indicated as an accident-prone location with high conflict rates. A set of traffic video-recordings employing a number of surveyors at different points of observations were carried out on-site to obtain real near-miss accidents. Prior to the survey, surveyors practiced judging vehicles running speeds until they reached a certain maximum error of judgment. Evasive actions such as braking, swerving and accelerating were recorded, and actions were classified into serious and non-serious conflicts based on the time-to-accidents and speeds. The results of the analysis show that almost all of the total recorded conflicts fall in the category of serious conflicts. An improvement scheme of the junction with reduced potential traffic conflicts is proposed, which can be expected to lower the accidents occurrences.
channelized junction, near-miss accident, TCT, time-to accident, traffic conflicts
 The Department of Traffic Planning and Engineering, Lund Institute of Technology, Lund University, The Swedish Traffic Conflict Technique (Brochure), Lund, Grahns Boktryckeri AB, 1992.
 Hydén, C. & Várhelyi, A., The effects on safety, time consumption and environment of large scale use of roundabouts in an urban area: a case study. Accident Analysis and Prevention, 32, pp. 11–23, 2000. https://doi.org/10.1016/s0001-4575(99)00044-5
 Victor, T., Dozza, M., Bärgman, J., Boda, C-N., Engström, J., Flannagan, C., Lee, J.D. & Markkula, G., Analysis of Naturalistic Driving Study Data: Safer Glances, Driver Inattention, and Crash Risk, Transportation Research Board. Washington D.C., 2015.
 Almqvist, S. & Hydén, C., Methods for assessing traffic safety in developing countries. Building Issues, 6, 1994.
 Zhang, G., Zhang, Q. & Qi, Y., Exploring Factors Contributing to Traffic Conflicts Between Motor Vehicles and Non-Motorized Vehicles at Signalized At-Grade Intersections. International Conference on Transportation (ICTR 2013), pp. 14–19, 2013. ISBN 978-1-60595-146-1.
 Siregar, Martha Leni., TCT (the Swedish Traffic Conflict Technology) Method for Safety-Based Evaluation of the Provision of With-Flow Bus Lane on Fast Lane. Jurnal Teknologi (ed.), pp. 17–25, 2001. ISSN 0215-1685.
 Transportation Research Board, NCHRP Report 420: Impacts of Access Management Techniques, TRB National Research Centre, Washington, DC, 1999.
 Washington State Department of Transport, Design Manual M22.01. WSDOT, Washington, DC, 2016.
 Departemen Perhubungan, Peraturan Direktur Jenderal Perhubungan Darat Nomor : Sk.770/Ka.401/Drjd/2005 Tentang Pedoman Teknis Perlintasan Sebidang Antara Jalan Dengan Jalur Kereta Api, Jakarta: Departemen Perhubungan Direktorat Jenderal Perhubungan Darat, 2005
 www.wsdot.wa.gov/publications/manuals/mutcd.htm (Accessed 13 March 2016).
 Siregar, M.L., Alawiyah, T. & Tjahjono, T., Remedial safety treatment of accident-prone locations. International Journal of Technology, 6, pp. 680–688, 2015.