Green Light

by John Casey, Asst. Editor; Civil Engineering, 345 E. 47 St., New York, NY 10017,


Serial Information: Civil Engineering—ASCE, 1996, Vol. 66, Issue 5, Pg. 56-59


Document Type: Feature article

Abstract: Construction of the $718 million Metro Green Line, the latest addition to the Los Angeles County Metropolitan Transportation Authority's rail plan, required flexible coordination between agencies and a new computer program to handle change orders. About 17 mi of the new Metro Green Line is built in the median of the recently opened Glenn Anderson Freeway (Interstate 105), between Los Angeles International Airport (LAX) and Norwalk, Calif. The remaining 3.5 mi runs on an elevated guideway. Constructing the Metropolitan Transportation Authority's (MTA) new light-rail line within the median of Caltrans's newest freeway created an unusual and complex contracting arrangement for the two agencies. They had to share funding, accommodate a myriad of contractors' work schedules and manage numerous change orders. All this construction togetherness required management and staff from both agencies to engage in unprecedented levels of cooperation in order to open the roadway, track and stations on time.

Subject Headings: California | Construction | Construction management | Government agencies | Highways and roads | Light rail transit | Transportation engineering

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