In Live mode, you can see flight and noise information from London Luton Airport with a time lag of 1200 seconds. The application is automatically opened in Live mode when launched.
In REPLAY mode, archived flight and noise information from London Luton Airport is displayed. You may select any time within the last 2 months to view information you are interested in. Archived information can be replayed at a higher rate than the current data. Load the date with the calendar button and set the speed in the control box at the top left.
Clicking on the start button or the calendar button will enable you to switch between both modes.
The measuring stations are displayed as measuring points. If a measured sound level is below the threshold defined individually for every station,
the measuring point will be displayed in green. If the noise level is above, it will be
displayed in yellow. If the noise level is recognised as an aircraft noise event, the
measuring point will turn light red.
If a measuring station is temporarily out of service or no measurements delivered for technical reasons, the station will be displayed
turquoise without any values. Furthermore, the measuring point will turn
dark grey if a noise level of 90 dB(A) is exceeded. This occurs for example when the calibration is checked.
If a measuring station is coloured grey, a downtime is indicated. This can be caused by weather conditions (e.g. thunderstorms, strong gusts of wind, etc.). The downtime of the measuring station will not be taken into account for the continuous noise level calculation or any other reports.
By clicking on the measuring station, detailed information will be displayed at the right side of your browser window, such as name of the measuring station, height above sea level, actual noise level, etc.
Landing and departing aircraft can be recognised by their flight track in the system. They length of the flight paths can be adjusted in the View Options. The green coloured flight tracks indicate the path of landing aircraft and the blue tracks that of departing aircraft.
In the "Live mode" in TraVis the traffic is displayed with a 1200 seconds time lag for technical reasons. The system time is local time (CET resp. CEST) at London Luton Airport.
In the header area you see information about the weather situation at the time you have chosen. Move the mouse cursor over this area to open additional weather data! This includes date and time, temperature, humidity, precipitation, wind speed and direction are displayed. Weather information is updated every 30 minutes.
Clicking on a particular aircraft or monitoring station will display any relevant detailed information. The appropriate information will be shown on the right side of the screen.
You can mark your own position using the home symbol - just drag the little house icon with the mouse from the header area to the map and move it to your own position. Afterwards you can open the distance graphics for selected flights in the data panel on the right side of your browser window. Additionally you can open a context menu by clicking the right mouse button over the home symbol - in this menu you can open a window with information about the marked position and remove the home marker.
For technical reasons there may be a few flights with incorrect track display. This can happen especially for smaller airplanes.
You can gain information about acoustic measuring values and configuration data with relevant traffic data for every measuring station. The statistics module presents information about numbers and levels of noise events caused by aircraft flights in diagrams and tables. The values can be related to the number of flights, runway usage, type mix and route usage. You can start the statistics module with the button under the data of the selected measuring station.
Under "View options" (open with tool button in the header area) you can customise your view of aircraft movements and flight data. The flight tracks can be switched on and off by using the button "Show flight tracks", the noise monitoring terminals can be switched on and off by using the button "Show NMTs". Information referring to every aircraft movement can be switched on and off by using the button "Show data flags for all flights". Detailed information can be displayed by using the button "Show big data flags".
You can also use your keyboard to change the map view. If this area has the input focus, you can zoom out with the - key and zoom into the map using the + key. You can use the arrow keys and PageUp/PageDown keys to change the visible section of the map.
Almost all modern internet browsers include a full page mode, which shows the content of the browser window without the menubar and other toolbars maximized to the full screen. Press the F11 key to start and end this mode.
You can measure distances on the map by right-clicking two (or more) positions on the map. The result of the measurement will be shown in a small information area in the bottom left corner of your browser window. Left-click on the map to stop the measurement.