Introduction
The application presented here shows live air traffic over parts
of Northern Switzerland and surrounding Central Europe.
The major goal of this project is to demonstrate how traffic
data can be efficiently visualised in real-time and in 3D by
combining state-of-the-art tools MATLAB and Google Earth.
The air traffic data displayed are collected by an ADS-B receiver (Automatic Dependent Surveillance Broadcast) on
one of the buildings at ZHAW Zurich University of Applied
Sciences, School of Engineering, Winterthur, Switzerland.
The receiver that collects the raw data of the airplanes was developed by Marcel Rupf (ZSN) and his group. The well known application
http://radar.zhaw.ch/, which was initiated and designed by Karl Rege (InIT) and developed as part of a diploma thesis at ZHAW, makes use of the same data.
There is a huge variety of other data (static or dynamic), from various fields, which can be visualised with Google Earth.
In many cases the adaptation / extension of the framework
developed in this project is quite straightforward.
(a) If you use Mozilla Firefox, click here to download the application file. You will be asked to open the file "AirTraffic3D.kmz" with GE. Press 'Ok' and the application will start automatically.
(b) If you use Internet Explorer, perform a right-click
here and save the file as "AirTraffic3D.kmz" on your
computer. To start the application, double-click "AirTraffic3D.kmz".
Some notes
Depending on the speed of your internet connection, it might take a few seconds to load the screen overlays and the airplane models after starting the application.
As the initial altitude of GE is approximately 11'000 km above sea level, you need to zoom in to around 10 to 300 km, depending on the area and the level of detail you want to see.
The trajectories and the information overlays on the left side of the screen are updated around every 10 seconds.
Information/objects displayed
Airplane model, together with flight number, last known altitude (meters), and current data status:
A = Active (valid data received in last time interval)
W = Waiting (no or not enough valid data received)
L = Landing
Trajectory in 3D space (colour according to altitude)
Trajectory, projected on ground (grey, semitransparent)
Vertical line, pointing towards the centre of the earth
While you are running this application, disable all layers, except: borders and labels, terrain, and 3D buildings.
To prevent the airplane text become too dominant on the screen, set the label/icon size to small as follows: Select Tools in the GE menu, choose "Options" and set "Labels/Icon Size" to small within "3D View".
Hide the sidebar to see the maximum area/airspace.
Screen shots and movies
To demonstrate some of the capabilities of the tool we provide several screen shots and movies below. Please note that the image resolution of the movies is reduced (in comparison to the original) due to file compression.
By navigation in this context we mean that you (the observer) can move virtually through the 3-dimensional space.
Besides well known standard operations with the mouse (e.g., rotation of the earth), there are two options to
navigate in GE:
(1) by using the navigation elements on the top right of the screen (if active), or
(2) by using the scroll wheel of the mouse together with some specific buttons on the keyboard.
We recommend to use the second option, as it allows more precise and often faster navigation.
Action (movement)
Control
Altitude above sea level
Mouse scroll wheel
Heading: angle of line of sight relative to north,
e.g., heading towards east is 90 degrees
CTRL + Mouse scroll wheel
Tilt: angle between the line of sight and the vertical,
i.e., the line perpendicular to the earth surface
SHIFT + Mouse scroll wheel
Forward relative to current heading
ALT + Keyboard arrow ↑ (up)
Backward relative to current heading
ALT + Keyboard arrow ↓ (down)
Left relative to current heading
ALT + Keyboard arrow ← (left)
Right relative to current heading
ALT + Keyboard arrow → (right)
Note that by additionally pressing the ALT button, the first three movements listed above become a lot smoother.
Airport capacity Zurich, Winter 2009, 25.10.2009 to 27.03.2010 (Coordination step: Start of Season)
Number of arrivals and departures per 30 minute interval, CET, Monday to Sunday: Table, Chart
Airport capacity Zurich, Summer 2010, 28.03.2010 to 30.10.2010 (Coordination step: Start of Season)
Number of arrivals and departures per 30 minute interval, CEST, Monday to Sunday: Table (tba), Chart (tba)
Various aviation related links
Live air traffic over parts of Switzerland with Google Maps, developed at ZSN/InIT of ZHAW, best known as the "radar" project.
The application is written completely in MATLAB (release 2009b) and runs on an ESXi 4.0 server with operating system LinuxCentOS 5.4. The kml files generated are in accordance with KML version 2.2. The 3D airplane model was drawn
with Google Sketchup 7 (Credits to Patrick13 for providing the basic version of the Airbus A340-300 model).
Acknowledgement
Remo Maurer (Head IT, SoE) for providing invaluable support with the Linux server and for getting it running!
Daniel Kramarz (InIT) for hints on connecting to the web service (raw data).
Comments and contact
Any comments and suggentions are highly welcome! Please find my contact information here.
Project funding
The development of the application presented here was not part of a funded project or any other ongoing research or teaching activity.
Disclaimer
The application presented on this website is for demonstration purposes only. All kinds of liability claims for the data presented here, their correctness, their accuracy, or any resulting conclusions on true airplane trajectories in the considered airspace are overruled. Nor myself neither my employer (ZHAW) shall be liable for any damage of any kind in connection with the use of this application. All information provided additionally by Google Earth is in the sole responsibility of Google, Inc.