Research Projects

This is a list of projects and studies that the ITS-Davis Telecommunications and Travel Behavior Research Program has undertaken.


  • Capitol Corridor Joint Powers Agreement.  Multi-tasking while Traveling in the Capitol Corridor:  The Role of Wi-Fi.  September 2011 – September 2012.

  • University of California, Davis University Transportation Center, Year 6.  Activities Conducted while Traveling:  An Empirical Examination of their Impact on the Value of Travel Time Savings.  October 2011 – September 2012.

  • University of California, Davis University Transportation Center, Year 5. How Permanent are Construction-Induced Adjustments in Commute Behavior?  Change Persistence Six Months after the Fix I-5 Project in Sacramento, California.  October 2010 – September 2011.

  • University of California, Davis University Transportation Center, Year 4. How Do Commuters React to a Temporary Freeway Closure?  An Evaluation of the Fix I-5 Project in Sacramento, California.  October 2009 – September 2010.

  • University of California, Davis University Transportation Center, Year 3.  Activities Conducted while Traveling: An Examination of their Impact on the Value of Travel Time Savings.  October 2008 – September 2009.

  • University of California, Davis University Transportation Center, Year 2.  The Impact of the Internet on Shopping Behavior: Modeling the Choice of Pre-purchase and Purchase Modes.  October 2007 – September 2008.

  • University of California, Davis University Transportation Center, Year 1.  Structural Equation Modeling of Desired Travel Amounts.  August 2006 – July 2007.

  • U. S. Department of Transportation Region Nine Transportation Center, Years 17 & 18. Modeling the Adoption of Teleshopping.  August 2004 – July 2006.

  • U. S. Department of Transportation Region Nine Transportation Center, Year 16. Aggregate Structural Equations Modeling of the Relationships between Consumer Expenditures on Communications and Travel.  August 2003 – July 2004.

  • DaimlerChrysler.  Determinants of Travel Liking:  Who has a Positive Utility for Travel? September 2002 – August 2003.

  • California Department of Transportation.  Alternative Fleet Scenarios.  July 2002 – June 2004.

  • U. S. Department of Transportation Region Nine Transportation Center.  An Input/Output Analysis of the Re­la­tionships between Communications and Travel for Industry.  August 2002 – July 2003.

  • U. S. Department of Transportation Region Nine Transportation Center.  Telecommuting over the Long Term:  Patterns of Engagement and Impacts on Residential Location.  August 2001 – July 2002.

  • California Energy Commission.  An Aggregate Evaluation of the Impact of Teleworking on Vehicle-Miles Traveled.  June – December 2001.

  • U. S. Department of Transportation Region Nine Transportation Center.  The Impact of Attitudes toward Mobility, Adoption of Previous Strategies, and Demographic Characteristics on Responses to Congestion.  August 2000 – July 2001.

  • Daimler-Benz.  Is there a Drive to Travel?  December 1998 – December 2000.

  • Daimler-Benz.  Modeling Mobility Budgets.  December 1998 – September 1999.

  • Bayerische Motoren Werke AG (BMW).  Long-Term Effects of Telecommuting on Travel Behavior and Residential Location.  August 1998 – March 1999.

  • National Science Foundation Integrated Graduate Education Research and Training (IGERT) grant. October 1998 – September 2003.

  • U. S. Department of Transportation Region Nine Transportation Center.  Is Accessibility the Solution for All?  Segmenting the Market for Mobility and Accessibility Policies.  August 1997 – July 1999.

  • Partners for Advanced Transit and Highways.  Beyond Telecommuting:  The Travel/Com­muni­ca­tions Impacts of Advanced Telecommunications Services.  September 1996 – July 1997.

  • Partners for Advanced Transit and Highways.  Is there a Case for Public Investment in Telecommuting?  The Cost/Benefit Analysis.  (Co-PI with Debbie Niemeier).  September 1996 – July 1997.

  • U. S. Department of Transportation Region Nine Transportation Center.  Travelers’ Responses to Congestion.  August 1995 – July 1996.

  • U. S. Department of Transportation Region Nine Transportation Center.  An Empirical Analysis of the Travel Behavior of Telecommuters and Home-Based Business Owners.  August 1994 – July 1995.

  • Washington State Energy Office.  Puget Sound Telecommuting Demonstration Transportation Emissions Analysis.  June 1994.

  • U. S. Department of Transportation Region Nine Transportation Center.  Market Segmentation of the Demand for Telecommuting.  August 1993 – July 1994.

  • California Energy Commission.  Present Status and Future Directions of Telecommuting in Cali­for­nia.  November 1992 – September 1993.

  • California Department of Transportation (Caltrans).  Residential Area-Based Telecommuting Work Centers.  July 1992 – January 1997.

  • California Department of Transportation (Caltrans).  Davis Community Network Demon­stra­tion Project.  July 1992 – June 1995.

  • U. S. Department of Transportation Region Nine Transportation Center.  Modeling the Choice to Telecommute.  August 1991 – July 1993.



  • California Air Resources Board.  Evaluation of I-5 Closure in Downtown Sacramento.  May 2008-December 2009 (co-PI with Prof. Michael Zhang).

  • California Department of Transportation (Caltrans).  Residential Location Modeling. July 2002-June 2004 (co-PI with Prof. Susan Handy).

  • National Science Foundation.  Decentralized Decision-Making in Complex Network Systems. 2000-2003 (in collaboration with Prof. Anna Nagurney of University of Massachusetts, Amherst, and Prof. June Dong of State University of New York, Oswego).

  • California Department of Transportation (Caltrans).  Statistical Approaches to the Study of Causes and Concomitants of Traffic Generation:  Reexamining and Expanding upon Recent Work.  March – June 1999 (in collaboration with F. Samaniego, R. Azari, R. Shumway, and N. Willits).

  • California Air Resources Board.  Development of a Land Use/Travel Model.  November 1991 – March 1993 (co-PI with R. Kitamura).

  • U. S. Department of Transportation Region Nine Transportation Center.  Impact of Tele­com­muting on Travel:  Accessibility Implication of Working at Home.  August 1990 -July 1991 (co-PI with R. Kitamura, P. P. Jovanis, and D. S. Bunch).

  • University of California Energy Research Group.  Telecommuting, Energy and Air Quality.  July 1990 – June 1991 (co-PI with R. Kitamura and P. P. Jovanis).


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