The report was prepared to provide information on principal airport congestion and its cause and effect. The study is a consolidation of information obtained from various data sources, including government and industry from which a comprehensive analysis was made to determine the probable cause and degree of air carrier delay in operations at major airports. Included in the study is an analysis of load factors and composition of passenger loads, a detailed analysis of peak period delay data and a summary of operations and delay data for the airports studied for the study timeframe. The study summarizes the probable causes o of air carrier delay in operations at the major airports and recommendations to alleviate the source of delay. (Author).

The report was prepared to provide information on principal airport congestion and its cause and effect. The study is a consolidation of information obtained from various data sources, including government and industry from which a comprehensive analysis was made to determine the probable cause and degree of air carrier delay in operations at major airports. Included in the study is an analysis of load factors and composition of passenger loads, a detailed analysis of peak period delay data and a summary of operations and delay data for the airports studied for the study timeframe. The study summarizes the probable causes o of air carrier delay in operations at the major airports and recommendations to alleviate the source of delay. (Author).

The study investigates implications of a projected growth of commercial air transport demand in the Chicago area for operations at the region's airports. About 95% of commercial air passenger and flight movements in Chicago currently take place at O'Hare International Airport. Serious airport runway and ground access congestion problems are likely to result if this degree of concentration of commercial traffic continues into the mid-1980's. This study considers the increased airport system capacity which could result if a significant portion of the growth of commercial air transport activity were to take place at Chicago Midway Airport in the late 1970's and mid-1980's.