How to use
The Aviation OLS web application allows users to check the maximum permitted height for aviation purposes of any structure at a specific point. NB – The maximum height indicated is the height above the vertical datum and thus to work out the maximum height of the building at that point the ground elevation must be subtracted from the maximum height.
Having navigated to the correct point on the map, click on the point and a pop-up window will appear.
As can be seen, on the top line of the window the OLS layer name is displayed. On the bottom line the decimal GPS coordinates of the location are displayed and to the right of these coordinates you can find the maximum permitted elevation for aviation purposes for a structure at that location (see highlighted numbers in the box above).
Town Planning Considerations
Whilst aviation matters are a relevant consideration in the planning process it is only one of many matters that are taken into account when making a decision on whether to grant planning permission. It is therefore possible that the maximum heights quoted for aviation purposes may not be acceptable for planning reasons and that a lower height may be imposed. Developers are encouraged to consult with the Town Planning Department at an early stage in the design process.
Accuracy of Results
However, please note the maximum permitted obstacle heights for aviation purposes are to be used for “guidance purposes only”. Due to the resolution available for display, the map should be considered to have a horizontal accuracy of +- 5 metres and thus the vertical accuracy should be considered as +- 3 metre. Should greater accuracy be required then the distance from the runway centreline will need to be accurately measured and the maximum permissible height or aviation purposes can be calculated by using the advice given on the Civil Aviation and Town Planning webpages of the Government of Gibraltar website. For planning applications where the height of the Development is close to the indicated maximum guidance height, then proof (in terms of distance from the runway) will be required to be provided to show the height does not infringe the permitted safeguarding surface.
Please note that as a general rule of thumb the maximum height of buildings on the steep slopes of the Rock for aviation purposes is 30 metres above ground level.
Instructions for Use of the Model
Please note that all elevations are based on the Alicante Vertical Datum. Horizontal coordinate system is EPSG:25830 (UTM30, ETRS89). Metres.
Should you have any questions on the use of the model, please contact the Director of Civil Aviation on 20061174