orangepeel wrote:I dont think the delay is to do with security concerns ...
I think this website is mainly used for noise monitoring ... rather than flight tracking ....
There are noise monitors mounted around most of the major airports - and using sydney as example - there are only allowed a certain amount of movements (t/o and ldgs) per hour and this is primarilary due to noise.
Most of the major airports use a noise abatement departure depending on the runway in use.
As you can see - if you look back - you will notice little noise (-dB) meters around and they will advise the level of noise as the aircraft passes over....
Noise is one think (noone told you to buy that cheap house under the flight path!!) but then safety of the flight is prarmount...
hmm its all about aviation security as posted below
Quick Links
* Home
* Locations
* More Information
Noise Enquiry
* Lodge a Noise Complaint
*
WebTrak
WebTrak is an innovative system providing the community with information on where and how high aircraft fly, as well as noise levels of these operations.
It allows members of the public access to detailed information on aircraft operations around major airports.
WebTrak is part of the largest integrated Noise and Flight Path Monitoring System in the world.
How does it work?
WebTrak uses information from air traffic control secondary surveillance radars to monitor aircraft:
* within 55 km of the airport
* up to a height of 3000m above ground level
Aircraft noise data is downloaded daily from noise monitors strategically located about the communities close to the airport.
The information is then displayed on a detailed map (road or aerial) which enables the user to zoom down to their street level.
In Current Flights mode you can view current operations (
delayed by 40 minutes for aviation security reasons) around the airport.
In Replay Mode you can access flight information and noise data for the previous two weeks.
