Conference Presentations
Bold represents students that I advised as a committee chair
Bold Italic represents other students that I mentored significantly
* represents presenter
Bold Italic represents other students that I mentored significantly
* represents presenter
- Kontar, W., Ahn, S., 2020. Real-time monitoring of AV’s time gap variations based on Bayesian updating and control charts. (Poster). The 99th Annual Meeting of Transportation Research Board.
- Bang, S., Ahn, S., 2020. Heterogeneous connected and autonomous vehicles: Analysis and control using spring-mass-damper system. (Poster). The 99th Annual Meeting of Transportation Research Board.
- Srivastava, A.*, Chen, D., Ahn, S., 2020. Chained asymmetric driver behavior under stop-and-go oscillations: Modeling and control using connected and automated vehicles. The 99th Annual Meeting of Transportation Research Board.
- Wu, J., Ahn, S., Zhou, Y., Liu, P., Qu, X., 2020. The cooperative sorting strategy for connected and automated platoons. (Poster). The 99th Annual Meeting of Transportation Research Board.
- Zhou, Y.*, Ahn, S., Wang, M., Hoogendoorn, S., 2019. Stabilizing mixed platoons with connected automated vehicles: An H-infinity norm approach. The 23rd International Symposium of Traffic and Transportation Theory, Lausanne, Switzerland.
- Chen, D., Srivatava, A., Ahn, S.*, Li, T., 2019. Traffic dynamics under speed disturbance in mixed traffic with automated and non-automated vehicles. The 23rd International Symposium of Traffic and Transportation Theory, Lausanne, Switzerland.
- Zhang, Z., Ding, F., Zhou, Y., Ahn, S, Ran, B., 2019. Deep long short-term memory network based long-term vehicle trajectory prediction. Accepted for presentation at the 98thAnnual Meeting of TRB.
- Zhou, Y., Ahn, S., 2019. Robust local and string stability for a decentralized car following control strategy for connected automated vehicles. Accepted for presentation at the 98thAnnual Meeting of TRB.
- Bang, S., Ahn, S., 2019. Mixed traffic of connected and autonomous vehicles and human-driven vehicles: Traffic evolution and control using spring-mass-damper system. Submitted for presentation and publication at the 98th Annual Meeting of TRB.
- Han, Y., Perry, E., Ahn, S., Vorhes, G., 2019. Evaluating regional freight corridors in the mid-America states: a step towards regional prioritization for freight operations and investments. submitted for presentation and publication at the 98th Annual Meeting of TRB.
- Srinivasav, A., Chitturi, M., Ahn, S., Rafferty, P., 2019. Analytical methods for work zone travel time reliability. Accepted. Proceedings of the 98th Annual Meeting of TRB.
- Reina, P., Saman, G., Ahn, S., 2019. On the spatial evolution of traffic state transitions: Empirical observations and general features. Accepted. The 98th Annual Meeting of the Transportation Research Board.
- Srivastava, A.*, Ahn, S., Chen, D., 2018. CAV control to mitigate stop and go oscillation amplification in mixed traffic with chained asymmetric driver behavior. 2018 Mid-year Meeting of Transportation Research Board’s AHB45 Traffic Flow Theory and Characteristics Committee.
- Han, Y.*, Ahn, S., 2018. Variable speed release (VSR): Speed control to increase bottleneck capacity. The 97th Annual Meeting of the Transportation Research Board.
- Chen, D., Ahn, S., 2018. Harnessing connected and automated vehicle technologies to control lane changes at freeway merge bottlenecks. (Poster). The 97th Annual Meeting of the Transportation Research Board.
- Bang, S., Ahn, S., 2018. Control of connected and autonomous vehicles for cut-in movement by using spring mass damper system. (Poster). The 97th Annual Meeting of the Transportation Research Board.
- Chen, D., Ahn, S., Chitturi, M., Noyce, D., 2017. Modeling of truck platooning on uphill segments under cooperative adaptive cruise control (CACC). (Poster). 22nd International Symposium of Transportation and Traffic Theory (ISTTT), Chicago, USA.
- Bang, S.*, Ahn, S., 2017. Platooning strategy for connected and autonomous vehicles: transition from light traffic. The 96th Annual Meeting of the Transportation Research Board.
- Chen, D., Ahn, S.*, Chitturi, M., Noyce, D., 2017. Towards vehicle automation: roadway capacity formulation for traffic mixed with regular and automated vehicles. The 96th Annual Meeting of the Transportation Research Board.
- Zhou, Y.*, Ahn, S., Chitturi, M., Noyce, D., 2017. Receding horizon stochastic optimal control strategy for ACC and CACC under uncertainty. (Poster). The 96th Annual Meeting of the Transportation Research Board.
- Han, Y.*, Ahn, S., 2017. Stochastic modeling of breakdown at freeway merge bottleneck and traffic control strategies using connected/automated vehicle. (Poster). The 96th Annual Meeting of the Transportation Research Board.
- Chen, D.*, Ahn, S., Chitturi, M., Noyce, D., 2016. Impacts of Road Grade on CACC Vehicle Platoons. Automated Vehicles Symposium. San Francisco, USA
- Han, Y.*, Chen, D., Ahn, S., 2016. Variable speed limit control at fixed freeway bottlenecks using connected vehicles. (Poster). The 95th Annual Meeting of the Transportation Research Board, Washington D.C.
- Chen, D.*, Ahn, S., Bang, S., Noyce, D. 2016. Car-following and lane-changing behavior involving heavy vehicles. The 95th Annual Meeting of the Transportation Research Board, Washington D.C.
- Reina, P.*, Ahn, S., 2016. Characterizing variations of congested freeway lane flow distribution trends. (Poster). The 95th Annual Meeting of the Transportation Research Board, Washington D.C.
- Chitturi, M.*, Noyce, D., Ahn, S., 2016. Incorporating Reliability Concepts in Transportation Engineering Curriculum. The 95th Annual Meeting of the Transportation Research Board, Washington D.C.
- Chen, D.*, Han, Y., Ahn, S., Chitturi, M., Noyce, D., 2015. Design of cooperative lane changes enabled by connected-automated vehicles. Automated Vehicle Symposium 2015, Ann Arbor, Michigan.
- Han, Y., Chen, D., Ahn, S., Hegyi, A., 2015. Analysis of driver response and traffic evolution under VSL control. (Poster). The 94th Annual Meeting of the Transportation Research Board, Washington D.C.
- Chen, D.*, Ahn, S., 2014. Variable speed limit control to increase discharge rates at freeway incident bottlenecks. Traffic Flow Theory and Characteristics Committee (AHB45) 2014 Summer Meeting: Symposium Celebrating 50 Years of Traffic Flow Theory, Portland, Oregon USA, August 11-13, 2014.
- Chen, D., Ahn, S., Hegyi, A., 2014. A variable speed Limit scheme based on the Kinematic Wave theory. (Poster). The 93rd Annual Meeting of the Transportation Research Board, Washington D.C.
- Reina, P., Ahn, S., 2014. Prediction of merge ratios using lane flow distributions. (Poster). The 93rd Annual Meeting of the Transportation Research Board, Washington D.C.
- Reina, P.*, Ahn, S., 2013. Prediction of merge ratios using lane flow distributions. hEART 2013 – 2nd Symposium of the European Association for Research in Transportation.
- Chen, D., Ahn, S., Zheng, Z., Laval, J., 2013. Traffic hysteresis and the evolution of stop-and-go oscillations. (Poster). The 92nd Annual Meeting of the Transportation Research Board, Washington D.C.
- Chen, D., Ahn, S.*, Zheng, Z., Laval, J., 2012. Traffic hysteresis and the evolution of stop-and-go oscillations. 2012 LATSIS Symposium: The 1stEuropean Symposium on Quantitative Methods in Transportation Systems, Lausanne, Switzerland.
- Reina, P., Ahn, S., Chiabaut, N., Bar-Gera, H., Leclercq, L., 2012. Merge ratios at active merge bottlenecks. (Poster). The 91st Annual Meeting of the Transportation Research Board, Washington D.C.
- Chen, D.*, Laval, J., Zheng, Z., Ahn, S., 2012. Validation, improvement, and application of a parsimonious traffic oscillation model. The 91st Annual Meeting of the Transportation Research Board, Washington D.C.
- Duret, A., Ahn, S., Buisson, C., 2012. Lane-flow distribution on a three-lane freeway: Empirical observation and model implementation. (Poster). The 91st Annual Meeting of the Transportation Research Board, Washington D.C.
- Chen, D., Laval, J., Ahn, S., Zheng, Z., 2012. Traffic hysteresis in traffic oscillations: a driver behavioral perspective. (Poster). The 91st Annual Meeting of the Transportation Research Board, Washington D.C.
- Zheng, Z.*, Ahn, S., Chen, D., Laval, J., 2011. Freeway traffic oscillations: microscopic analysis of formations and propagations using wavelet transform. The 19thInternational Symposium of Transportation and Traffic Theory (ISTTT).
- Zheng, Z., Ahn, S.*, Chen, D., Laval, J., 2011. Applications of wavelet transform for analysis of freeway traffic: bottlenecks, transient traffic, and traffic oscillations. The 90th Annual Meeting of the Transportation Research Board, Washington D.C.
- Zheng, Z., Ahn, S.*, Chen, D., Laval, J., 2011. The impact of lane-changing on the immediate follower: anticipation, relaxation, and behavioral change. The 90th Annual Meeting of the Transportation Research Board, Washington D.C.
- Zheng, Z., Ahn, S.*, Chen, D., Laval, J., 2011. Freeway traffic oscillations: microscopic analysis of formations and propagations using wavelet transform. (Poster). National Science Foundation Civil, Mechanical and Manufacturing Innovation Engineering Research and Innovation Conference.
- Duret, A., Ahn, S.*, Buisson, C., 2010. Methodology for measuring the impact of lane changing maneuvers on platoon’s car-following process under congested regime. WCTRS 2010.
- Vadlamani, S., Ahn, S.*, 2010. Driver characteristics and their impact on traffic hysteresis and stop-and-go oscillations. Transportation Research Board Mid-year Meeting, Traffic Flow Theory and Characteristics Committee. Annecy, France.
- Ahn, S., Bar-Gera, H., 2010. Empirical macroscopic evaluation of freeway merge-ratios. (Poster). The 89th Annual Meeting of the Transportation Research Board, Washington D.C.
- Zheng, Z., Ahn, S., Monsere, C., 2010. Impact of traffic oscillations on freeway crash occurrence. (Poster). The 89th Annual Meeting of the Transportation Research Board, Washington D.C.
- Vadlamani, S., Chen, E., Ahn, S., Washington, S., 2010. Identifying hot spots of large truck crashes. (Poster). The 89th Annual Meeting of the Transportation Research Board, Washington D.C.
- Tufte, K.*, Bertini, R., Chee., J., Fernández-Moctezuma, R., Periasamy, S., Sarkar, S., Singh, P., Whiteneck, J., Matthews, S., Freeman, N., Ahn, S., 2010. Portal 2.0: Towards a Next-Generation Archived Data User Service. The 89th Annual Meeting of the Transportation Research Board, Washington D.C.
- Bar-Gera, H.*, Ahn, S., 2009. Empirical macroscopic evaluation of freeway merge-ratios. INFORMS Annual Meeting.
- Ahn, S.*, Rayabhari, M., Ou, Q., Bertini, R., 2009. An empirical study of transient freeway traffic states along kinematic waves. The 88th Annual Meeting of the Transportation Research Board, Washington D.C.
- Duret, A., Ahn, S., Buisson, C., 2009. Spatio-temporal analysis of impacts of lane changing consistent with wave propagation. (Poster). The 88th Annual Meeting of the Transportation Research Board, Washington D.C.
- Ahn, S., Kandala, S., Uzan, J., El-Basyouny, M., 2009. comparative analysis of input traffic data and the MEPDG Output for flexible pavements in State of Arizona. (Poster). The 88th Annual Meeting of the Transportation Research Board, Washington D.C.
- Laval, J., Chen, D.*, Ben Amer, K., Guin, A., Ahn, S., 2009. Evolution of oscillations in congested traffic: improved estimation method and additional empirical evidence. The 88th Annual Meeting of the Transportation Research Board, Washington D.C.
- Ma, T., Ahn, S., 2008. Comparisons of speed-spacing relations under general car-following vs. Lane-changing. (Poster). The 87th Annual Meeting of the Transportation Research Board, Washington D.C.
- Ahn, S.*, Cassidy, M., Laval, J., 2008. Effects of merging and diverging on freeway traffic oscillations. The 87th Annual Meeting of the Transportation Research Board, Washington D.C.
- Nodes, S.*, Saleem, F.*, Gettman, D.*, Ahn, S.*, Leader, S., 2008. Vehicle infrastructure integration. Arizona ITE/IMSA Spring Conference.
- Ahn, S.*, Cassidy, M. J., 2007. Freeway traffic oscillations and vehicle lane-change maneuvers. The 17th International Symposium of Transportation and Traffic Theory, London, 2007.
- Ahn, S.*, Cassidy, M., Laval, J., 2007. Effects of merging and diverging on freeway traffic oscillations. The 11th World Conference on Transportation Research, Berkeley, USA
- Ahn, S.*, Bertini, R., Auffray, B., Ross, J., 2007. Evaluation benefits of system-wide adaptive ramp metering system. Arizona ITE/IMSA Spring Conference
- Kothuri, S., Tufte, K., Ahn, S., Bertini, R.L., 2007. Using archived its data to generate improved freeway travel time estimates. (Poster). The 86th Annual Meeting of the Transportation Research Board, Washington, D.C.
- Tufte, K., Ahn, S.*, Bertini, R.L., Auffray, B., Rucker, J., 2007. Toward the systematic improvement of data quality in the Portland, Oregon Regional Transportation Archive Listing (PORTAL). (Poster). The 86th Annual Meeting of the Transportation Research Board, Washington, D.C.
- Kothuri, S., Ahn, S., Tufte, K., Bertini, R.L., 2006. Improving the accuracy of freeway travel time estimates using archived ITS data. The 13th World Congress on Intelligent Transport Systems, London, October 8–12, 2006.
- Boice, S., Ahn, S., Bertini, R.L. Bogenberger, K., 2006. Influence of variable speed limit and driver information system on key traffic flow parameters on a German Autobahn. The 13th World Congress on Intelligent Transport Systems, London, October 8–12, 2006.
- Ahn, S.*, Cassidy, M.J., Laval, J., 2006. How merging and diverging traffic impact freeway traffic oscillations. INFORMS Annual Meeting.
- Kothuri, S., Tufte, K., Ahn, S., Bertini, R.L., 2006. Development of an ITS data archive application for improving freeway travel time estimation. The 9th International IEEE Conference on Intelligent Transportation Systems, Toronto, Canada, September 17–20.
- Cassidy, M. J., Ahn, S.*, 2005. Driver turn-taking behavior in congested freeway merges. The 84th Annual Meeting of the Transportation Research Board, Washington, D.C.
- Ahn, S.*, 2003. Formation and spatial evolution of traffic oscillations. The 9thUniversity of California Transportation Center Annual Conference at University of California, Los Angeles.