By Carlos Müller, Rafael Fraga and Cláudio Jorge Pinto Alves

PRM/SOIA (Precision Runway Monitor/Simultaneous Offset Instrument Approach), first implemented at San Francisco International Airport in 2004, is an approach  procedure that can be specifically designed to allow simultaneous approaches at runway systems spaced as close as 750 feet. Once implemented it is expected to increase airport runway capacity and hence contribute to the mitigation of congestions that arise with air traffic growth. Sao Paulo International Airport runway system is composed of two parallel runways about 1,230 feet apart, and so is unable to handle simultaneous approaches with the current traditional approach procedures. This paper using computer simulation (RAMS Plus#) addresses the potential impact of the use of a PRM/SOIA approach procedure at São Paulo International Airport (GRU). The results obtained so far indicate potential reductions of 51% in total airborne flight delays with about 18% increase in arrivals capacity at the airport.

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This article reports on advances in building an air cargo network routing software. This software module is an integral component of a multi-level air cargo supply-demand interaction model. The model is aimed at analyzing and forecasting airborne commodity flows on a global scale. Having an exhaustive overlook of the routing options is essential for assigning airfreight in networks as close to reality as possible. Our modeling deals with cargo “alliances” and sub-networks defined by interlining agreements. In the absence of publicly available data, we develop a route typology, as well as a methodology for subsequent choice set formation. Itinerary level observations and preference data act as yardsticks for this exercise. We demonstrate how to address the relevant spatial-temporal routing options for cargo within a maximum range of adjustment strategies, while keeping computational complexity manageable.

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All recent major civil as well as military aircraft projects – A380, B787, A400M – have suffered from massive cost overruns and substantial entry-in-service delays of at least two years. In our paper, we intend to overview the press coverage of the aircraft programs of Boeing’s new long-haul wide-body model, the 787 Dreamliner, and the military transport aircraft A400M, designed by European manufacturer Airbus. Using causal mapping, based on a content analysis, we summarize the project events reported in the press that triggered off the chains of causality, which inevitably led to cost overruns and time delays.