Travel demand analysis on reducing air travel emissions. It was proposed that a travel demand study be conducted to find out quantitatively how university business travelers select air travel against other alternatives (such as web-conference, train, driving). The outcome will then be used to develop incentives or policies to reduce air travels and emissions. This study could be conducted in two phases:

Phase 1. Collect 1-2 years of data on individual travel decisions, including travelers’ socio-economic characteristics, and the alternatives they have. This includes analysis of the current Travel and Expense Management (TEM) database (e.g., the reported travel purpose and funding source) to collect basic information about current air travel. Part of the effort can involve adding new questions to the current TEM reimbursement process. An additional survey to the general public might be necessary to account for those who choose not to travel.

Phase 2. Statistical/econometric models (e.g., discrete choice models) will be developed based on the data collected in Phase 1. The outcome will inform us what factors contribute to air travel versus other available options, and what it takes to change the travelers’ decisions. Based on the findings, the researcher could recommend programs to (i) provide incentives for campus units to reduce their annual air travel emissions; and (ii) educate/support the campus community on alternatives to air travel, such as trains and video conferencing.