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Program Evaluation

The AT&T Telework Program evaluation is conducted on an emission reduction basis. Other quantifiable advantages that the company reports include environmental impacts and reduced commute times. Calculation of the environmental impact from telecommuting has been limited to the net transportation effects associated with the commute and errand miles.

The AT&T survey studies the average commute lengths for the employees who telework along with the average length of commute. Emission factors used are obtained from the National Environmental Policy Institute (NEPI) and are based on a mass per mile basis, assuming average gasoline mileage. These are multiplied by the estimated savings in commute travel (in miles) to estimate the total savings. These savings were calculated based on the average distribution of days worked at home, the average roundtrip commute distance and net errand miles, and then aggregated to the 67,900 employees reported by AT&T to have teleworked at the time of the October 2000 survey. The total number of miles avoided was 110,000, with 5.1 million gallons of gasoline saved. It must be acknowledged that the impacts rely on the assumption that all telecommuting behavior is assumed to be attributable to the program. It is not clear if any attempt was made to estimate telecommute trends in the region or at other companies over the same period without a similar program.

The fact-sheet of the AT&T annual survey of its employees on telework indicates that in 2000, AT&T's employee telework program resulted in:

  • Avoidance of 110 million miles of driving to the office;

  • 5.1 million gallons of gas saved;

  • Reduction of 50,000 tons of carbon dioxide emissions;

  • 56 percent of participants teleworking at least one day per month; and,

  • 27 percent of participants working from home once or more per week.

A key element of the reported programs success has been AT&T’s web portal to promote and educate employees about the Telework Initiative. The web portal simplifies the requirements to set-up a teleworking location by including guidance on how to acquire a computer; how to obtain proper telephone line installation; security issues and formal policies and agreements required.

Evaluating Behavior Change in Transport: Benefit Cost Analysis of Individualized Marketing for the City of South Perth

Viewed as a pilot project, this study was carried out in Perth, Australia to encourage a study group to switch to transit, walking and cycling. A benefit cost analysis was developed as part of the assessment process to attract capital works funding for a “no-


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