Mobilizing the Region
Issue 154December 12, 1997


For the Record

During a discussion on traffic induced by new road capacity at the Wednesday Staten Island Expressway meeting, Port Authority and NY State DOT officials claimed that truck traffic increases at the Tappan Zee Bridge resulting from the completion of the I-287 beltway in 1994 were offset by lower truck volumes at the George Washington Bridge.

However, NYMTC data on annual truck volume trends (NYMTC file: "trends.wk4") show a dramatic increase in Tappan Zee Bridge truck volumes between 1993 and 1995 (from 1.7 million to 2.9 million per year), while George Washington Bridge truck volumes fell by only 170,000 in the same period. At the Goethals Bridge, truck volumes fell by 42,000 from 1993-1994, but increased by 14,000 overall from 1993 to1995.


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