High quality topographic surveys carried out to our clients' requirements

At Ratcliff Land Surveys, we pride ourselves in the production of high quality topographic surveys carried out to our client’s requirements within a pre agreed time frame.

A topographic survey is the measurement of natural and / or manmade features and their spatial relationships. The amount of detail that we include in a survey will depend on our client’s requirements. Sometimes our client will provide their own specification, otherwise we will produce a specification for client approval based on conversations with the client, what the land is to be used for, knowledge of the site and / or based on our historical knowledge of our clients needs.

We use survey instruments manufactured by Leica Geosystems of Switzerland. Survey control (the 3 dimensional grid that a survey is based on) is usually established with survey grade GPS. The raw satellite data is corrected using Leica’s Smartnet System which gives us accuracies in the order of 10mm for position and 20mm for height. Depending on the specification, required accuracies and satellite visibility (dependant on the absence of large trees and tall buildings), we will then carry out the detail survey using either the GPS and/or Total Station.

Once the collection of survey data is complete, it is then processed and subjected to rigorous checking. When satisfied that we have clean data, we construct a CAD drawing. This drawing is then thoroughly edited with considerable care taken to create a drawing that contains the maximum amount of information conveyed in a clear and unambiguous manner.

The completed drawing can be output in various formats such as dwg, dxf, pdf, or Moss Genio. CAD drawings can be produced in either 2D or 3D.

If you would like to see examples of our work, please take a look at the attached pdf's below:

• Barn Survey
• Car Park Survey
• Country Park Survey
• Industrial Unit Survey
• Road Survey