Piuriformity of the Air Traffic Management R&D Landscape

This millennium's Air Traffic Management (ATM) challenges can only be faced with a new paradigm for ATM research in Europe. The rising delays, the legitimate concerns over ATM safety (collision risk) in the air as well as on the ground and the growing environmental pressure necessitates the review of ATM R&D performance in Europe and the...

A survey of the NARSIM C/S middleware

This document describes the Client/Server system architecture of NARSIM - the NLR Air Traffic control Research Simulator- focussing on the socalled middleware: the infrastructure that enables all the seperate parts of the simulator to interact with each other. To show the full scope of the architecture, first a somewhat abstract architecture...

NASA-NLR long-line experiment; a first step to connected Air Traffic Management research facilitiest

A data-communication link via Internet has been established between the Crew-Vehicle Systems Research Facility (CVSRF) at the NASA Ames Research Center and the CTAS/NARSIM Simulation Facility (CNSF) at the NLR. Multiple simulated arrival flights of the Advanced Concepts Flight Simulator (ACFS) for Amsterdam Airport Schiphol in the Netherlands...

The layered safety concept, an integrated approach to the design and validation of air traffic management enhancements

The expected growth of air traffic asks for large enhancements in continental Air Traffic Management (ATM) to increase capacity. From a technology point of view a multitude of 'solutions' are available, such as introducing air-ground datalink, providing better support to the ATCo (Air Traffic Controller), introducing 4D air traffic control,...

A stochastic control approach to flight path monitoring

In the Programme for Harmonised Air Traffic management Research in Eurocontrol (PHARE) Medium Term Scenario, a number of Advanced Tools are described which must be developed in order to increase Air Traffic Control capacity and the flight efficiency of aircraft while keeping at least the same level of safety. One of these Tools is the Flight...

DME-derived positions compared with MLS- and ILS-derived positions

From recorded Distance Measurement Equipment (DME) data during Microwave Landing System (MLS) flight trials performed at London Gatwick Airport (April 21 - 26, 1989) using the NLR Fairchild Metro II Laboratory Aircraft, the position of the aircraft was determined by post-processing and compared with the MLS- and ILS-derived positions. This...

Results of MLS procedural interception flight trials performed at Manchester Airport

In July, 1988, flight trials have been performed on the newly installed MLS equipment at Manchester Airport (UK), using one of the laboratory aircraft of NLR, a Fairchild Metro II with programmable avionics systems including a basic MLS receiver as an "Avionics Research Testbed". The aim of the tests was to prove that aircraft with basic IFR...

Estimating the probability of vertical overlap from the paired aircraft data obtained in the european vertical data collection using the program DGLDiF

The problem of estimating the probability of vertical overlap in possible future airway systems with a vertical separation standard of 1000 ft above Flight Level 290 is addressed. It forms part of an overall safety assessment of such potential systems. The problem is solved by developing a mathematical probability model of the vertical distance...

A method and measures to evaluate trackers for air traffic control

The general setup of the evaluation of a radar tracking algorithm in a civil ATC-system has been considered from an operational point of view. Both the present and the potential future use of trackdate has been taken in account. The result is a method to evaluate trackers for ATC on the basis of live-traffic data, under the assumption that a...

Historical development of collision risk models for en-route air traffic

This lecture reviews the model studies that were made with the object to reduce en-route separation standards. It also describes the basic principles of the Reich model used in most of these studies and of the Minimum Navigation Performance Specification (MNPS). Paper presented at the Princeton University Conference 155, "Safety Issues in Air...

Comparison of a jump-diffusion tracker with a Kalman tracker: an evaluation with emphasis on air traffic control

A sophisticated starting point for a probabilistic approach to the radar tracking problem is a Markov jump-diffusion model for the aircraft dynamics, its control and the radar measurements. From nonlinear filtering theory, a closed form description of the evolution of the conditional distribution of this Markov process can be obtained. This jump...

Trends in airline avionics

Modern avionics are an integral part of the aircraft. They provide the functions of communication, navigation, energy management, identification, weather, terrain, and collision avoidance, the presentation of flight and warning data as well as aircraft guidance and stabilization. New developments in micro-electronics and display technology...

Comparison of some methods to determine the delays of landing aircraft with respect to runway capacity

The capacity of runways in use for landing aircraft may become the chief bottleneck of the capacity of airports. This runway capacity may result in long queues of aircraft waiting for landing, which in its turn results in unacceptable delays. Two analytic methods to determine these delays are described and the results are compared. The two...

The estahlishment of safe separations between aircraft in flight

The paper starts with a review of the history of the use of models and statistical data for the assessment of separation standards. This work was mainly done by the ICAO Vertical Separation Panel, the North Atlantic Systems Planning Group and the ICAO Panel for the Review of the General Concept of Separation. After a brief description of the...