Topographical Surveys Portishead Somerset
Topographical Surveys Portishead Somerset experts deploy a wide range of the latest technologies to supply real-time data analysis and support the building plans of our clients.
There are many ways to map the Earth around us,Topographical Surveys Portishead Somerset each method having their own benefits. One type of method is a topographic survey, which are used for a variety of purposes.
What is a Topographic Survey?
Topographic surveys are a type of survey that measures the elevation of a particular piece of land at various points.Topographical Surveys Portishead Somerset These points are then illustrated as contour lines on a map/plot.
Contour lines are curved or straight lines on a map that join points of the same elevation together to indicate the elevation and steepness of a particular area of land.Topographical Surveys Portishead Somerset For example, a very steep mountain on a survey will have lots of very close-together contour lines, whereas flat land will have very spaced out contour lines.
The survey shows the relative positions and elevations of both natural and man-made features on a property.Topographical Surveys Portishead Somerset These features can include rivers, streams, roads, buildings and lanes. These surveys are very graphical in nature and are one of the most universally understood types of land surveys in the world.
What are they used for?
Topographic surveys are widely used around the world for a variety of Topographical Surveys Portishead Somerset reasons. The three main categories their use can be classified into include development, planning and land use. These surveys can be drawn to appropriate scales to suit the purpose it is for.
Many construction projects start by using a topographic or land survey to help with the initial design stage of the building – including the best area of land for it to be built, and what features may get in the way. They are well known for their use in orienteering and hiking.Topographical Surveys Portishead Somerset They are also the easiest types of maps to understand and navigate from. It is important for serious hikers to know the elevation and steepness of their surroundings, particularly in very hilly areas.
Process of creating one
They generally cover large areas of land and can be quite time consuming to gather the data. However, with the advancement of apparatus and tools to assist in surveying the methods are becoming much faster and more accurate. The first step to creating a survey is to establish the horizontal and Topographical Surveys Portishead Somerset vertical controls, followed by the surveyor locating the different features (both natural and man-made) within the control area that will be included in the topographic survey.
Next the data collected needs to be formatted to meet the design criteria, and finally the topographic survey needs to be drawn up and completed – often alongside a detailed report.
Where to find them
Most countries in the world have their own government agency that deals with topographic surveys of the land.Topographical Surveys Portishead Somerset These surveys are some of the most popular and common ways of getting across maps to the general public.
In Australia, Geoscience Australia controls the National Mapping Information Group, and they provide free surveys and maps on their website.Topographical Surveys Portishead Somerset The Ordnance Survey is the United Kingdom’s agency for various surveys. Ordnance Survey was one of the first developers of topographic surveys in the world, upon which most other topographic surveys are based.
In the USA, all topographic and property surveys of public land are looked after by the United States Geological Survey. The Geological Survey produces a variety of surveys at different scale and detail.Topographical Surveys Portishead Somerset The internet has made finding various types of surveys extremely easy and convenient. Most government agencies, such as the ones named above, now offer a range of topographic surveys on their websites as well as an option to print them as books.