INVESTIGATION ON THE EFFECTS OF AIRPORT ATFM RESTRICTIONS - PowerPoint PPT Presentation

Loading...

PPT – INVESTIGATION ON THE EFFECTS OF AIRPORT ATFM RESTRICTIONS PowerPoint presentation | free to download - id: 1f1746-NzgyZ



Loading


The Adobe Flash plugin is needed to view this content

Get the plugin now

View by Category
About This Presentation
Title:

INVESTIGATION ON THE EFFECTS OF AIRPORT ATFM RESTRICTIONS

Description:

most penalizing airport: Frankfurt Main (more than 1 million minutes of ATFM ... 3rd: London Heathrow: 590 000 minutes ATFM delay in 2003 ... – PowerPoint PPT presentation

Number of Views:144
Avg rating:3.0/5.0
Slides: 13
Provided by: thomasg152
Category:

less

Write a Comment
User Comments (0)
Transcript and Presenter's Notes

Title: INVESTIGATION ON THE EFFECTS OF AIRPORT ATFM RESTRICTIONS


1
INVESTIGATION ON THE EFFECTS OF AIRPORT ATFM
RESTRICTIONS
  • Thomas Günther
  • Prof. Dr.-Ing. Hartmut Fricke
  • ICRAT 2004
  • Zilina, 23.11.04

2
Content
  • Background motivation
  • Computer-aided model
  • Investigation results
  • Conclusions
  • Institute of Aviation, Dresden

3
Investigation background
  • ATFM (Air Traffic Flow Management) objectives
  • improve safety by avoiding overloads of sectors
    and controllers
  • enable an optimum traffic flow within the
    airspace
  • in Europe provided by the CFMU (Central Flow
    Management Unit)
  • comparison of the demand forecast with capacities
    of each ATC sector and airport ?ATFM restrictions
    if demand exceeds capacity
  • all flights concerned with this restriction will
    be delayed at their departure airport (slot
    allocation)

4
Motivation
  • En-route ATFM delays decreased since 1999 by
    about 75
  • ? Airport ATFM delays are becoming more
    important nowadays
  • most penalizing airport Frankfurt Main (more
    than 1 million minutes of ATFM delay in 2003,
    much more than any other European airport)
  • 2nd Roma Fiumicino 610 000 minutes ATFM delay
    in 2003
  • 3rd London Heathrow 590 000 minutes ATFM delay
    in 2003

5
Computer-aided model
Requested inputs Scheduled Times of Arrival, …
ETA generation (propability distribution)
Modeling of the slot allocation process
Discrepancies between regulated and actual demand
Modeling of the arrival sequencing process
Actual Times of Arrival, arrival demand flow,
...
6
Investigation
  • Investigation on ATFM restrictions at Frankfurt
    Main Airport
  • declared capacity of 43 (45) arrivals/h in 2003
  • in case of poor weather conditions explicit lower
    capacity (CAT II/III conditions about 35
    arrivals per hour)
  • investigation on the effects with and without
    ATFM restrictions

7
Results Effects on actual demand
  • Simulation of a regulated demand of 35 arrivals/h
    between 700 and 800
  • actual demand decreases within the period of ATFM
    restriction
  • after cancellation of the restriction the demand
    increases (late arrivals)
  • a too early applied restriction may lead to
    negative effects (flights are pushed into the
    critical period)

ATFM restriction
8
Results Effects on airborne delay
  • Simulation of a maximum arrival rate of 35 per h
    between 700 and 800
  • airborne delay can be reduced by implementing
    ATFM restrictions
  • communication and surveillance workload for the
    controllers can be reduced
  • safety is improved by avoiding overload of
    airspace and controllers

9
Results Effects on punctuality
  • Simulation of a maximum arrival rate of 35 per h
    between 700 and 800
  • punctuality is decreased by the application of
    Airport ATFM restrictions
  • reduction of airborne delay is always less than
    subsequent increase of ATFM delay
  • reason better runway throughput without ATFM
    restrictions

10
Conclusions
  • Airport ATFM restrictions need to be applied to
    ensure safety if a capacity reduction or
    excessive demand may lead to significant airspace
    congestion.
  • To maintain a tolerable punctuality a good
    balance between ATFM restrictions and the use of
    available holding stacks has to be achieved.
  • Objective of Airport ATFM restrictions
  • NOT to avoid holding!
  • Maintain safety requirements while keeping
    airborne holding at a manageable and efficient
    level

Ground Holding
Safe and efficient balance
Airborne Holding
11
Institute of Aviation, Dresden
  • Director of the institute Professor Hartmut
    Fricke
  • young team (9 assistants) of aviation experts and
    engineers
  • key aspects of research
  • Air Transport Infrastructure Planning
  • Air Transport System Technologies
  • Optimizing Ground Handling and Passenger Flow
    Processes
  • Capacity Analysis Correlating Capacity and
    Safety

12
Thank you for your attention!
About PowerShow.com