Air traffic delay grows each year. NASA is developing the Final Approach Spacing Tool (FAST) to help reduce airport arrival delays. FAST is intended to increase throughput and reduce delays. Analysis and field trials have suggested that FAST can help controllers increase arrival throughput on busy runways by several aircraft per hour. Published simulation studies have predicted that delay reduc...

In this dissertation we address a stochastic air traffic flow management problem. This problem arises when airspace congestion is predicted, usually because of a weather disturbance, so that the number of flights passing through a volume of airspace (flow constrained area – FCA) must be reduced. We formulate an optimization model for the assignment of dispositions to flights whose preferred fli...

An outline of a planned system for the global space-weather monitoring network of NICT (National Institute of Information and Communications Technology) is given. This system can manage data collection much easier than our current system, by installations of autonomous recovery, periodical state monitoring, and dynamic warning procedures. According to a provisional experiment using a network si...

When aircraft take off, a minimum separation time must be enforced between them. The separation required between each pair of aircraft depends upon the weight classes, speed groups and departure routes. This ensures that wake vortices have time to dissipate, in-flight separations are maintained and congestion is controlled. Some separations may need to be increased in bad weather. The take-off ...

A primary function of air traffic flow management is to strategically shape traffic demand to match capacities (e.g., airport arrival/departure rate limits and Sector capacities), without imposing excessive delay. In the current United States National Airspace System (NAS), the disruptions modulating capacities and hence traffic management are predominantly weather events, including convection,...

In this paper we address a stochastic air traffic flow management problem. Our problem arises when airspace congestion is predicted, usually because of a weather disturbance, so that the number of flights passing through a volume of airspace (flow constrained area – FCA) must be reduced. We formulate an optimization model for the assignment of dispositions to flights whose preferred flight plan...

In the US alone, weather hazards and airport congestion cause thousands of hours of delay, costing billions of dollars annually. The task of managing delay may be modeled as a multiagent congestion problem with tightly coupled agents who collectively impact the system. Reward shaping has been effective at reducing noise caused by agent interaction and improving learning in soft constraint probl...

Introduction Congestion bottlenecks are severe traffic chokepoints where demand far exceeds available highway capacity. The Federal Highway Administration (FHWA) of the US Department of Transportation states that recurring bottlenecks account for the largest share of road delay in the United States (40%), far exceeding traffic incidents (25%), inclement weather (15%), construction (10%) or othe...