摘要: |
Boston Logan International Airport, a major trip generator, contributes to and is impacted upon by traffic congestion in the Greater Boston area. Located about 3 km from downtown Boston, Logan is the fifth largest airport in the United States in terms of origin-destination air passengers. Logan origin-destination passengers begin or end their air travel in the Boston region and affect the Boston regional transportation system. Because air passenger growth must be accommodated within the existing airport boundaries and regional roadways, restrictions imposed by the Logan Airport Parking Freeze, and by a responsibility to help reduce regional environmental impacts, it has become increasingly important to find feasible ways to reduce the vehicle trip generation rates of the various Logan Airport user groups. The commuting patterns of the 16,000 Logan employees, who account for about 20% of average annual weekday traffic, are characterized in this paper. Data presented in the paper are based on the results of an airport employee survey conducted in 1990. Commute profiles of both flight crews (who exhibit travel characteristics similar to those of air passengers) and non-flight crew employees are highlighted. Since the airport is staffed 24 hours a day with various types of workers, feasible solutions to reduce airport employee trips will be different from measures tailored to influence commute habits of the traditional office workers. In this paper available alternatives to the single-occupant private automobile are discussed, and their effectiveness relative to employee demand is assessed. There is a small employee market for most alternatives currently available, although each service was developed primarily for air passengers or downtown commuters. Finally, a summary is presented of the initiatives that the Massachusetts Port Authority (owner and operator of Logan International Airport) has taken in the past and is considering in the future to encourage employees to use higher-occupancy commute modes. |