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The Trade-Off Between Trips and Distance Traveled in Analyzing the Emissions Impacts of Center-Based Telecommuting

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  • Mokhtarian, Patricia
  • Varma, Krishna

Abstract

Several travel indicators were compared between telecommuting (TC) days and non-telecommuting days for a sample of 72 center-based telecommuters in California. Distance traveled decreased significantly on TC days, with average reductions of 51 person-miles (58%) and 35 vehicle-miles (53%). When weighted by telecommuting frequency, average reductions of 11.9% in PMT and 11.5% in VMT were found over a five-day work week. Person-trips and vehicle-trips increased slightly (but not significantly) on TC days. This was due to statistically significant increases in commute trips by telecommuters (who more often went home for lunch on their TC days), partly counteracted by decreases in non-commute travel. The drive-alone mode share increased on TC days, both for all trips, and for commute trips in particular. Walking and biking shares also increased modestly on TC days, whereas shares of transit and ridesharing declined. Despite the increase in trip rates, TC-day reductions were found for all pollutants analyzed: 15% for total organic gas emissions, 21% for carbon monoxide, 35% for oxides of nitrogen, and 51% for particulate matter. The reduction in VMT more than compensated for the marginal increase in number of trips (and consequently, cold starts) on telecommuting days.

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Bibliographic Info

Paper provided by Institute of Transportation Studies, UC Davis in its series Institute of Transportation Studies, Working Paper Series with number qt43b756qg.

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Date of creation: 01 Nov 1998
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Handle: RePEc:cdl:itsdav:qt43b756qg

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Keywords: telecommuting; telecommuting centers; emissions analysis; travel diary analysis;

References

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  1. Varma, Krishna & Ho, Chaang-Iuan & Stanek, David & Mokhtarian, Patricia, 1998. "Duration and Frequency of Telecenter Use: Once a Telecommuter, Always a Telecommuter?," Institute of Transportation Studies, Working Paper Series qt61t9j2vb, Institute of Transportation Studies, UC Davis.
  2. Henderson, Dennis & Mohktarian, Patricia, 1996. "Impacts of Center-Based Telecommuting on Travel and Emissions: Analysis of the Puget Sound Demonstration Project," Institute of Transportation Studies, Working Paper Series qt3tt6d46w, Institute of Transportation Studies, UC Davis.
  3. Koenig, Brett & Henderson, Dennis & Mohktarian, Patricia, 1996. "The Travel and Emissions Impacts of Telecommuting for the State of California Telecommuting Pilot Project," Institute of Transportation Studies, Working Paper Series qt1337n657, Institute of Transportation Studies, UC Davis.
  4. Henderson, Dennis K. & Koenig, Brett E. & Mokhtarian, Patricia L., 1996. "Using Travel Diary Data to Estimate the Emissions Impacts of Transportation Strategies: The Puget Sound Telecommuting Demonstration Project," University of California Transportation Center, Working Papers qt0g01v83p, University of California Transportation Center.
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Cited by:
  1. Bhat, Chandra R. & Sivakumar, Aruna & Axhausen, Kay W., 2003. "An analysis of the impact of information and communication technologies on non-maintenance shopping activities," Transportation Research Part B: Methodological, Elsevier, vol. 37(10), pages 857-881, December.
  2. Graham-Rowe, Ella & Skippon, Stephen & Gardner, Benjamin & Abraham, Charles, 2011. "Can we reduce car use and, if so, how? A review of available evidence," Transportation Research Part A: Policy and Practice, Elsevier, vol. 45(5), pages 401-418, June.
  3. Choo, Sangho, 2003. "Aggregate Relationships between Telecommunications and Travel: Structural Equation Modeling of Time Series Data," University of California Transportation Center, Working Papers qt4p78h623, University of California Transportation Center.
  4. Brown, Colby & Balepur, Prashant & Mokhtarian, Patricia L., 2005. "Communication Chains: A Methodology for Assessing the Effects of the Internet on Communication and Travel," University of California Transportation Center, Working Papers qt4cf351bc, University of California Transportation Center.
  5. Golob, Thomas F., 2002. "travelbehavior.com - Activity Approaches to Modeling the Effects of Information Technology on Personal Travel Behavior," University of California Transportation Center, Working Papers qt9t40s1mc, University of California Transportation Center.

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