Aaron Breakstone is a Senior Transportation Modeler at Portland Metro. His responsibilities span a range of model development and application efforts, including periodic model application code updates, major high-capacity transit corridor studies, bicycle modeling, and vehicle emissions modeling. He holds a Master's degree in Urban and Regional Planning from Portland State University.
Alan J. Horowitz is a transportation engineer and an urban planner. His research spans the areas of travel forecasting and traffic impacts. Since coming to the University of Wisconsin-Milwaukee in January 1979, Professor Horowitz has been continuing his research into values of time, and conducting new research about urban trip tours, land-use impact assessment, single-route ridership forecasting, trip assignment, subarea focusing, ride quality of highways, intermodal passenger transfer facilities, transportation benefits, freight planning, applications of GIS to transportation networks, hazardous materials routing, intelligent transportation systems, and travel forecasting. Dr. Horowitz is the author of the Quick Response System II travel forecasting software platform.
Jeremy Raw, P.E., works in the Federal Highway Administration Office of Planning where he conducts research, development and deployment of modeling and data analysis tools, and provides related technical assistance to Metropolitan Planning Organizations and state transportation agencies. Jeremy has worked for local, regional and state transportation agencies in North Carolina and Virginia, including the Virginia Department of Transportation from 2006 to 2010. He has built and evaluated travel models for many agencies, and has worked extensively with statewide travel models, as well as freight and toll models. Jeremy’s current research includes developing suitable analytic tools to support the increasing national emphasis on performance-based planning.
Aichong Sun is the regional modeling manager at the Pima Association of Governments (PAG) since 2007. His major responsibility is to oversee the regional modeling program at PAG to develop and maintain travel demand models, including Activity-Based Model and Dynamic Traffic Assignment model, that support and promote the best possible forecasting of future travel for the Tucson region; maintain regional travel related databases for analyses, assessments and studies in related program areas; develop and maintain land use model and land use databases; develop and maintain air quality model; and, prepare population/socioeconomic estimates and forecasts, and analyze and disseminate census data. He also worked as the senior transportation modeler at PAG between 2005 and 2007. Prior to joining PAG, Aichong worked as a transportation modeler/planner/engineer in Beijing, China for five years, and then he acquired his Ph.D. in Civil Engineering from the University of Arizona in 2005.
Ken Cervenka is a Community Planner at the FTA, where has worked since 2007. His major responsibilities include technical assistance to MPOs, transit providers, and other agencies interested in preparing transit rider “on-board” surveys and transit ridership forecasts. For forecasts submitted by project sponsors in support of New Starts and Small Starts projects, hisresponsibilities include a formal assessment of the plausibility of those forecasts for use in FTA’s project evaluation process. Prior to joining FTA, Ken worked as the Travel Forecasting Manager at the North Central Texas Council of Governments, the MPO for the Dallas-FortWorth area.
