WebTrak

The flight search and display function allows you to view aircraft flight activity over metropolitan areas. 您还可以:

• 找到你的街道地址，并在地图上显示你的家
• 见个别飞机的噪音水平
• 查看飞机类型、高度、出发地和目的地信息
• 显示飞机的飞行路径和最接近您的家
• 放大和缩小到街道水平.

请注意，航班显示有40分钟的延迟.

When you enter WebTrak you will arrive on the flight search and display screen. 从左上角的菜单中选择“帮助”.

To access a Text Only version of WebTrak, 去 Accessibility 选项卡的 帮助菜单 or 直接访问Text Only WebTrak.

主要机场的WebTrak数据会在夜间进行检查. Before data is checked there are more likely to be gaps or inaccuracies in the display. 因此，它是更准确的第二天. More information about technical issues including data accuracy is available in the Terms of Use and Notices that you accept when you enter the site and in the 关于 选项卡的 帮助菜单. 更多信息可以在下面的技术信息中找到.

不像WebTrak为主要机场提供的数据, 像詹达科特这样的二级机场的数据, Parafield, Moorabbin, Bankstown and Archerfield is not "groomed" and is therefore subject to many more inaccuracies. Therefore, displays of movements at and around these airports should not be relied upon.

一些飞机通常被排除在WebTrak之外.

注意:目前阳光海岸不提供.

WebTrak提供了飞机通常飞行位置的概览, 随着时间的推移，提供对操作和模式的理解. 常用的飞行路线显示为“带状”。. 你可以看到一条特定的航线每月使用的频率, 按季度或按年计算, 按时间或工作日/周末.

你也可以从这些时期的噪音监测器中查看数据.

This information will help you gain a better understanding of aircraft operations and noise in your area. It will also allow you to find out whether the aircraft operation is typical or not, which suburbs are overflown more frequently than others and the seasonal variations for flight paths.

访问历史趋势信息有两种方式:

1. 去 快速入门指南 in the top left-hand corner of the WebTrak screen, and click the “Historical” link
2. 在飞行搜索和显示屏幕上双击一架飞机, select the blue information icon in the flight information 盒子 - this will display the aircraft's track as well as the historical information

欲知更多详情，请浏览我们的 从WebTrak访问历史趋势信息的指南

飞行路径“条带”(绿色)表示典型的飞行路径 显示飞行路径 选择框. 您可以通过双击您想要删除的条带来删除条带. 你可以在任何时候通过点击浅灰色区域取回这些东西.

Further information can also be found by clicking on the circle or selecting the 标签 盒子.

‘Swathes’ can be tailored to reflect weekday or weekends and day, evening or night operations.

A specific time period of a month, quarter or year can also be selected using the 滑块 在底部. 左右滚动，选择您感兴趣的时间段.

Information is available on how many flights and what type of aircraft use flight paths by selecting the 信息符号 在条带信息框中.

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You can also see the percen标签e of flights that use the flight path selected compared to other paths.

噪音监控器显示时 显示噪音监视器盒 被选中.

When the noise level exceeds a pre-set threshold level the monitor will start recording and saving the noise data.

If an aircraft appears to pass close to a monitor but does not display a noise reading, 这可能是由一系列因素造成的:

• the noise data has not yet been downloaded from the monitor (try again in 24 hours)
• 飞机在高空飞过监视器
• severe weather conditions (such as high wind) reduced the aircraft noise at the monitor below the threshold
• the monitor could be offline for upgrades or maintenance during the over-flight (as the monitors are exposed to the weather, 需要定期维护以保持它们的准确性).

出现在紫色圆圈中的数字是 超过70分贝(A)的噪音 对于选定的期间.

You can also find out more information on aircraft noise by hovering over the graph.

WebTrak由 Envirosuite，前身为EMS Brüel & Kjær

Some police movements are not shown on WebTrak due to the nature of these operations. Where aircraft movements are made without transponders these also do not appear on WebTrak.

数据验证和准确性

Data for major airports captured by WebTrak undergoes a daily checking process by Envirosuite. This means that data in replay mode (the day after) will be more accurate than in current flight mode.

Jandakot等二级机场的WebTrak数据, Parafield, Moorabbin, Bankstown and Archerfield is not "groomed" and is therefore subject to many more inaccuracies. Therefore, displays of movements at and around these airports should not be relied upon.

供进出主要机场之用, the lateral accuracy (where an aircraft is over the ground) of WebTrak is dependent on the radar information the system uses.  雷达在很小的距离内可能不准确, depending on the aircraft's distance from the radar and the type of aircraft movement.  航空负责 performance criteria for radar include thresholds for margins of error (tolerances).

WebTrak ‘smooths’ readings from individual radar points to show a consistent track. 用于定期飞行的平稳转弯, the lateral accuracy is better than 250 metres at 40 kilometres from the radar site. 比如飞机急转弯的时候, 特技飞行飞机或直升机), 横向精度在距雷达站40公里处为450米. This means that aircraft may not have flown exactly on the track shown on WebTrak.

Height information is derived from changes in air pressure recorded by aircraft in flight. 这是对飞行过程中地面压力变化的修正. 使用这种方法的误差范围是125英尺，因此在任何一点上, the aircraft may have been 125 ft higher or lower than the altitude shown on WebTrak.  然而, 极端天气条件导致气压迅速变化, 比如冷锋的到来, 是否会进一步影响飞机高度测量的准确性.

In extreme cases, WebTrak can give the impression that an aircraft has deviated off the runway. 这是由于雷达反射可以发生在低空.

责任和版权

Envirosuite have made every reasonable effort to ensure the information presented is accurate. 然而, the data with在WebTrak may still contain inaccuracies in some cases. It should not be relied upon when making personal, legal or financial decisions.

WebTrak只供个CQ9电子及非商业用途. Users may not modify, copy, distribute or reproduce in any form the data obtained from WebTrak. WebTrak使用的所有地图均受版权保护. 如需进一步信息，请联系 Envirosuite.

隐私和个CQ9电子信息

Refer to the Terms of Use and Notices which you accept when you access WebTrak. 这些也可以通过 关于 选项卡的 帮助菜单 在WebTrak.