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Journal Articles

1. Cheol Oh, Stephen G Ritchie and Shin-Ting Jeng (2007) “Anonymous vehicle reidentification using heterogeneous detection systems”, IEEE Trans. Intell. Transport. Syst., 8(3), pp. 460–469. Available at: 10.1109/tits.2007.899720. [ITS-Irvine record]
2. Cheol Oh and Stephen G. Ritchie (2007) “Recognizing vehicle classification information from blade sensor signature”, Pattern Recognition Letters, 28(9), pp. 1041–1049. Available at: 10.1016/j.patrec.2007.01.010. [ITS-Irvine record]
3. Cheol Oh, Seri Park and Stephen G. Ritchie (2006) “A method for identifying rear-end collision risks using inductive loop detectors”, Accident Analysis & Prevention, 38(2), pp. 295–301. Available at: 10.1016/j.aap.2005.09.009. [ITS-Irvine record]
4. Cheol Oh, Stephen G. Ritchie and Jun-Seok Oh (2005) “Exploring the relationship between data aggregation and predictability to provide better predictive traffic information”, Transportation Research Record, 1935(1), pp. 28–36. Available at: 10.1177/0361198105193500104. [ITS-Irvine record]
5. Jun-Seok Oh, Cheol Oh, Stephen G. Ritchie and Myungsoon Chang (2005) “Real-time estimation of accident likelihood for safety enhancement”, Journal of transportation engineering, 131(5), pp. 358–363. [ITS-Irvine record]
6. Cheol Oh and Stephen G. Ritchie (2005) “Development of methodology to design advanced traffic surveillance systems for traffic information based on Or­i­gin-Des­tin­a­tion”, Transportation Research Record, 1935(1), pp. 37–46. Available at: 10.1177/0361198105193500105. [ITS-Irvine record]
7. Cheol Oh, Jun-Seok Oh and Stephen G. Ritchie (2005) “Real-time hazardous traffic condition warning system: Framework and evaluation”, IEEE Transactions on Intelligent Transportation Systems, 6(3), pp. 265–272. [ITS-Irvine record]
8. Cheol Oh and Stephen G. Ritchie (2003) “Anonymous vehicle tracking for real-time traffic surveillance and performance on signalized arterials”, Transportation Research Record, 1826(1), pp. 37–44. Available at: 10.3141/1826-06. [ITS-Irvine record]
9. Seri Oh, Stephen G. Ritchie and Cheol Oh (2002) “Real-time traffic measurement from single loop inductive signatures”, Transportation Research Record, 1804(1), pp. 98–106. Available at: 10.3141/1804-14. [ITS-Irvine record]
10. Cheol Oh and Stephen G. Ritchie (2002) “Real-time inductive-signature-based level of service for signalized intersections”, Transportation Research Record, 1802(1), pp. 97–104. Available at: 10.3141/1802-12. [ITS-Irvine record]

Conference Papers

1. Jinheoun Choi, Stephen G. Ritchie and Cheol Oh (2015) “Real-time estimation of freeway emissions based on an inductive-loop-based surveillance system”, in Proceedings of the 94th annual meeting of the transportation research board, p. 15p. [ITS-Irvine record]
2. Jinheoun Choi, Stephen G. Ritchie and Cheol Oh (2013) “Methodology for generating individual vehicle speed profile for estimating freeway emissions”, in Proceedings of the 92nd annual meeting of the transportation research board, p. 17p. [ITS-Irvine record]
3. Seri Park, Stephen G. Ritchie, Cheol Oh and I.T.S. America (2009) “An innovative single loop speed estimation model with advanced loop data”, in Proceeindgs of the 16th ITS world congress and exhibition on intelligent transport systems and services, stockholm, sweden, p. 13p. [ITS-Irvine record]
4. Seri Park, Cheol Oh and Stephen G. Ritchie (2005) “Heterogeneous sensor data fusion for freeway traffic surveillance and performance”, in Proceedings of the 12th world congress on intelligent transport systems, san francisco, CA, p. 15p. [ITS-Irvine record]
5. Cheol Oh and Stephen G. Ritchie (2005) “Development of methodology to design advanced traffic surveillance systems for traffic information based an origin-destination”, in Information systems and technology. TRANSPORTATION RESEARCH BOARD NATL RESEARCH COUNCIL, pp. 37–46. [ITS-Irvine record]
6. Cheol Oh, S.G. Ritchie, Jun-Seok Oh and R. Jayakrishnan (2002) “Real-time origin-destination (OD) estimation via anonymous vehicle tracking”, in Proceedings. The IEEE 5th international conference on intelligent transportation systems. IEEE, pp. 582–586. Available at: 10.1109/itsc.2002.1041283. [ITS-Irvine record]

Theses and Dissertations

1. Cheol Oh (2003) Anonymous vehicle tracking for real-time traffic performance measures. PhD Dissertation. UC Irvine. Available at: https://uci.primo.exlibrisgroup.com/permalink/01CDL_IRV_INST/17uq3m8/alma991014364619704701. [ITS-Irvine record]

Technical Reports

1. Jinheoun Choi, Stephen G Ritchie and Cheol Oh (2015) Real-time estimation of freeway emissions based on an inductive-loop-based surveillance system. [ITS-Irvine record]
2. Jinheoun Choi, Stephen G Ritchie and Cheol Oh (2013) Methodology for generating individual vehicle speed profile for estimating freeway emissions. [ITS-Irvine record]
3. Steven Ritchie, Seri Park, Cheol Oh, Shin-Ting Jeng and Andre Tok (2005) Field Investigation of Advanced Vehicle Reidentification Techniques and Detector Technologies - Phase 2. Final Report UCB-ITS-PRR-2005-8. Institute of Transportation Studies, Irvine, p. 72p. Available at: https://escholarship.org/uc/item/3jq8609j. [ITS-Irvine record]
4. Stephen G. Ritchie, Seri Park, Cheol Oh, Shin-Ting (Cindy) Jeng and Andre Tok (2005) Anonymous Vehicle Tracking for Real-Time Freeway and Arterial Street Performance Measurement. Final Report UCB-ITS-PRR-2005-9. Institute of Transportation Studies, Irvine. Available at: https://escholarship.org/uc/item/50c6z6zh. [ITS-Irvine record]
5. Stephen G. Ritchie, Seri Park, Cheol Oh and Carlos Sun (2002) Field Investigation of Advanced Vehicle Reidentification Techniques and Detector Technologies - Phase 1. Final Report UCB-ITS-PRR-2002-15. Institute of Transportation Studies, Irvine. Available at: https://escholarship.org/uc/item/1fj5d7c4. [ITS-Irvine record]
6. Stephen G. Ritchie, Carlos Sun, Seri Oh and Cheol Oh (2001) Section-Related Measures of Traffic System Performance: Prototype Field Implementation. Final Report UCB-ITS-PRR-2001-32. Institute of Transportation Studies, Irvine. Available at: https://escholarship.org/uc/item/0f89s74m. [ITS-Irvine record]

Working Papers

1. Cheol Oh and Stephen G Ritchie (2003) Vehicle re-identification using heterogeneous detection systems. Working Paper UCI-ITS-TS-WP-03-9. ITS-Irvine. Available at: https://www.researchgate.net/publication/244446834_Vehicle_re-identification_using_heterogeneous_detection_systems. [ITS-Irvine record]