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Preface
O
n May 21 through 23, 2006, the Transportation appointed by the National Research Council. Under the
Reseach Board (TRB) convened the Innovations chairmanship of Chandra R. Bhat, University of Texas at
in Travel Demand Modeling Conference in Austin, and Ken Cervenka, North Central Texas Council
Austin, Texas. The conference was sponsored by the fol- of Governments, the planning committee identified three
lowing agencies, organizations, and companies to pro- objectives for the conference. The first was to examine
vide an opportunity for a frank exchange of ideas and advances in travel demand modeling. The second was to
experiences among academics, model developers, and facilitate the sharing of ideas and information among aca-
practitioners: TRB, FHWA, FTA, the Central Texas demics and practitioners on the opportunities and the chal-
Regional Mobility Authority, the Capital Metropolitan lenges associated with the implementation of advanced
Transportation Authority, PBS&JAustin, URS Corpo- travel models. The third was to identify additional needs
ration, and HNTB Corporation. for research, education, and training to ensure that the
Approximately 220 individuals from across the travel demand modelers of today and tomorrow are ade-
transportation research community--at national, state, quately prepared to apply the new model techniques.
regional, and local levels and from the public and pri- After identifying the three main objectives and, hence,
vate sectors and academia--participated. topic areas, the committee issued a call for papers, seeking
high-quality white papers of three to five pages addressing
the themes of the interactive sessions. The themes included
BACKGROUND
· Data needs to support activity-based and land use
The last major conference on specialty travel demand microsimulation models;
modeling was held as part of the U.S. Department of · Innovations in survey data collection to support
Transportation's Travel Model Improvement Program travel demand forecasting;
(TMIP) in the fall of 1996. At that time, there was little · Population and household synthesis;
research and no practical application of land use models · Validation and assessment of activity-based travel
and activity-based travel demand models and their inte- models;
gration with demographic, economic, and network · Implementation of activity-based models;
modes. Since then, there has been a literal revolution in · Emerging traffic microsimulation applications;
travel demand forecasting. In particular, significant · Innovations in traffic assignment and improve-
advances have been realized over the past decade in sur- ments of forecast speeds;
vey methods and analysis tools available to the travel · Institutional, monetary, staff, data, hardware, and
demand modeling profession. training resources needed to move innovative approaches
to practice; and
· The role of models in decision making in the con-
CONFERENCE PLANNING temporary decision-making context.
To plan this conference, TRB assembled the Committee for The final versions of these papers are reproduced in
Innovations in Travel Demand Modeling: A Conference, Volume 2.
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