Search

research report | February 2026

research report | March 2010

Gunwoo Lee, Soyoung (Iris) You, Mana Sangkapichai, Stephen G. Ritchie, Jean-Daniel M Saphores, Oladele Ogunseitan, Roberto Ayala, R. Jayakrishnan and Rodolfo Torres (2010) Assessing the Environmental and Health Impacts of Port-Related Freight Movement in a Major Urban Transportation Corridor. Final Report UCTC-FR-2010-08. Institute of Transportation Studies, Irvine.

published journal article | December 2025

published journal article | December 2019

Soyoung Iris You and Stephen G. Ritchie (2019) “Tour-based truck demand modeling with entropy maximization using GPS data”, Journal of Advanced Transportation, 2019, pp. 1–11.

published journal article | December 2025

published journal article | April 2018

Soyoung Iris You and Stephen G. Ritchie (2018) “A GPS data processing framework for analysis of drayage truck tours”, Ksce Journal of Civil Engineering, 22(4), pp. 1454–1465.

conference paper | December 2025

conference paper | January 2009

Mana Sangkapichai, Jean-Daniel Saphores, Stephen G. Ritchie, Soyoung You and Gunwoo Lee (2009) “Analysis of PM and NOx train emissions in the alameda corridor, California”, in Proceedings of the 88th annual meeting of the transportation research board, p. 19p.

conference paper | December 2025

conference paper | January 2009

G. Lee, S. You, S.G. Ritchie, J. Saphores, M. Sangkapichai and R. Jayakrishnan (2009) “Environmental impacts of a major freight corridor: A study of the I-710 in California”, in Proceedings of the 89th annual meeting of the transportation research board, washington, DC.

Phd Dissertation | December 2025

Phd Dissertation | January 2012

Soyoung Iris You (2012) Methodology for Tour-Based Truck Demand Modeling. Ph.D.. University of California, Irvine.

published journal article | December 2025

published journal article | June 2016

Soyoung Iris You, Joseph Y.J. Chow and Stephen G. Ritchie (2016) “Inverse vehicle routing for activity-based urban freight forecast modeling and city logistics”, Transportmetrica A: Transport Science, 12(7), pp. 650–673.

conference paper | October 2025

conference paper | January 2012

Soyoung Iris You and Stephen G. Ritchie (2012) “Tour behavior of clean drayage trucks in southern California”, in Proceedings of the 91st annual meeting of the transportation research board, p. 18p.

conference paper | October 2025

conference paper | January 2011

J.Y. Chow, S.G. Ritchie, M. Zhao, F. Ranaiefar, S. You, A. Tok and M.G. McNally (2011) “A conceptual statewide freight forecasting framework for California”, in Proceedings of the 4th METRANS national urban freight conference, Long Beach, California..

published journal article | October 2025

published journal article | January 2010

Soyoung (Iris) You, Gunwoo Lee, Stephen G. Ritchie, Jean-Daniel Saphores, Mana Sangkapichai and Roberto Ayala (2010) “Air pollution impacts of shifting freight from truck to rail at California's San Pedro bay ports”, Transportation Research Record, 2162(1), pp. 25–34.

working paper | October 2025

working paper | September 2008

Mana Sangkapichai, Jean-Daniel Saphores, Stephen G. Ritchie, Soyoung (Iris) You and Gunwoo Lee (2008) An Analysis of PM and NOx Train Emissions in the Alameda Corridor, CA.. Working Paper UCI-ITS-WP-08-4. Institute of Transportation Studies, Irvine.

published journal article | October 2025

published journal article | October 2012

Gunwoo Lee, Soyoung (Iris) You, Stephen G. Ritchie, Jean-Daniel Saphores, R. Jayakrishnan and Oladele Ogunseitan (2012) “Assessing air quality and health benefits of the Clean Truck Program in the Alameda corridor, CA”, Transportation Research Part A: Policy and Practice, 46(8), pp. 1177–1193.

policy brief | October 2025

policy brief | January 2010

Gunwoo Lee, Soyoung Iris You, Mana Sangkapichai, Stephen G Ritchie, Jean-Daniel Saphores, Oladele Ogunseitan, Roberto Ayala, R Jayakrishnan and Rodolfo Torres (2010) Health impacts of moving freight in and out of the ports of long beach and Los Angeles. Policy Brief UCTC POLICY BRIEF 2010-04. University of California Transportation Center.

working paper | October 2025

working paper | September 2008

Gunwoo Lee, Soyoung Iris You, Stephen G. Ritchie, Jean-Daniel Saphores, Mana Sangkapichai and R. Jayakrishnan (2008) Environmental Impacts of a Major Freight Corridor: A study of the I-710 in California. Working Paper UCI-ITS-WP-08-3. Institute of Transportation Studies, Irvine.

conference paper | October 2025

conference paper | January 2009

M. Sangkapichai, J-D Saphores, S. Ritchie, S. You and G. Lee (2009) “Estimating PM and NOx train emissions in the alameda corridor, California”, in Proceedings of the 88th meeting of the transportation research board, washington D.C.

published journal article | October 2025

published journal article | January 2009

Gunwoo Lee, Soyoung (Iris) You, Stephen G. Ritchie, Jean-Daniel Saphores, Mana Sangkapichai and R. Jayakrishnan (2009) “Environmental impacts of a major freight corridor. A Study of I-710 in California”, Transportation Research Record, 2123(1), pp. 119–128.

Filters