In this paper we deal with the time complexity of single- and identical parallel-machine scheduling problems in which the durations and precedence constraints of the activities are stochastic. The stochastic precedence constraints are given by GERT networks. First, we sketch the basic concepts...

In this paper we deal with the time complexity of single- and identical parallel-machine scheduling problems in which the durations and precedence constraints of the activities are stochastic. The stochastic precedence constraints are given by GERT networks. First, we sketch the basic concepts...

This article presents the gradual liberalization of European air transport, especially its most recent problems in the case of the Single European Sky (SES). Indeed, after successfully liberalizing airlines and, to a certain extent, airports, the European Commission has embarked on the process...

Recent applications of Cournot models suggest that fully connected networks are less costly and more welfare-efficient as compared to hub-and-spokes in China's rapidly expanding air traffic system (ATS). The author applies agent-based heuristics to demonstrate that the complexity of China's ATS...

Providing intelligent algorithms to manage the ever-increasing flow of air traffic is critical to the efficiency and economic viability of air transportation systems. Yet, current automated solutions leave existing human controllers "out of the loop" rendering the potential solutions both...

The corporatization of air traffic control (ATC), i.e. its removal from government control began in New Zealand in 1987. Several countries now propose similar restructuring of their ATC. This paper considers the issues involved in the change, e.g. budget, procurement problems. The evidence of...

The air traffic control (ATC) system over Europe faces increasing pressure every year, leading to frustrating delays, and threatening the potential gains from liberalization of Europe's skies. This paper initially outlines the limitations of the main elements involved in ATC. The congestion of...

This paper extends research on miscommunication between air traffic controllers and pilots by developing statistical models that predict the outcome of communications within the scope of controller-pilot data communications in the Next Generation Air Transportation environment. A database of...

This paper examines institutional and economic reform of the ways in which air traffic control (ATC) services are provided in the US. It also contrasts the European and US ATC systems in terms of size, scope, cost and organizational form. The paper suggests that many of the congestion and delay...

Aviation is a critical component of the global economic infrastructure. If there is to be growth in aviation, however, the environmental impacts of aviation must be mitigated. While the benefits of advanced noise abatement procedures have been recognized, the primary obstacle to the...