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86 Ground Access to Major Airports by Public Transportation Bus/Van. Bus service designed for and dedicated to airline passengers has been a major public transit mode at the three New York City area airports. At LaGuardia, privately owned buses captured 7% of the market in 1992 and 5% of the market in 1997 (24). New York Air- port Service Express Company offers scheduled service, with full-size coaches, to its Grand Central station facility and connecting services to hotels and the Port Authority Bus Terminal. At present, two companies offer shared-ride van services to New York City, and about five more provide services to the distant suburbs and adjacent states. At present, the combination of scheduled airport bus service and shared-ride services together account for about 7% of the market. Philadelphia (7% Market Share) Market Share U.S. Rank Airport Total Rail Bus/Van 23 Philadelphia International 7% 3% 4% Airport SOURCE: Philadelphia International Airport Ground Access Survey (25) The Airport. Philadelphia International Airport is located about 9 miles from the center of Philadelphia. The airport served about 31.5 MAP in 2005; of these, some 9.1 million were orig- inating passengers. Under conditions of no highway congestion, the driving time from the airport to downtown is 14 minutes. The airport currently attracts about 0.6 million travelers per year who use public, high-occupancy modes to the airport. Connections at the Airport. At Philadelphia International Airport, ground transportation services depart from a series of arrival terminals, where baggage claim occurs immediately adjacent to rail departure points. Although the train is required to stop in five places, the overall walking distances between baggage carousels and train boardings are quite short. Rail. Philadelphia International Airport's layout was designed for good connections to the commuter rail platforms, with baggage pick-up areas adjacent to the three rail stops. Walking distances from each of the baggage claim areas to the adjacent platform of the commuter rail are among the shortest in the world. The 30-minute travel time to a series of distribution stations in downtown Philadelphia can be competitive during congested-roadway periods but not during off-peak conditions. The rail line goes to the center of downtown, serving the Market Street East complex. In 1986, about 4.5% of originating passengers chose the commuter rail service, a market share that has decreased to about 2%. At the time of the 1986 survey, rail captured about 16% of the air traveler market from the center of the city (26). The 30-minute headway of the service is problematic: the traveler can spend more time waiting for the vehicle than on board the vehicle. As a result, Philadelphia's rail service attracts only about 2% of airline passengers. Although the airport commuter rail station attracts about 2,600 travelers a day, only 14% of them are estimated to be airline passengers. Because of a reported growth in rail ridership on the line, the researchers have estimated the rail mode share at about 3%. The Southeastern Pennsylvania Transportation Authority (SEPTA) reports an increase in rail ridership on the line, for all trip purposes, of about 66% between 1990 and 2005. Bus/Van. A wide variety of shared-ride services are offered from the airport, with connec- tions southward to Delaware and north to New Jersey. Based on the last available data, bus and vans together gained about a 4% market share.