How accurate is OS MasterMap?
How accurate is OS MasterMap Topography Layer?
| Original survey scale | 99% confidence level | RMSE* |
|---|---|---|
| Absolute accuracy | 2.4m | 1.1m |
| Relative accuracy | +/- 2.5 m (up to 100m) | +/- 1.0 (up to 100 m) |
| 1:10 000 | ||
| Absolute accuracy | 8.8m | 4.1m |
What is a topography layer?
The Topography Layer helps in the planning and management of land and property by enabling users to visualise the context of any feature or site, to pinpoint individual properties and precise sites when a high level of detail is required, and to assess the impact of a proposed development effectively and efficiently.
What does TK mean on OS map?
Track
Ordnance Survey Abbreviations
| T | Tank, Tap, Tides |
|---|---|
| Tk | Tank |
| Tk | Track |
| Tk | Track |
| Tk F | Track of Fence |
Are OS maps topographic?
OS MasterMap Topography Layer is comprised of 500 million individual features, each assigned a unique Topographic Identifier (TOID). This identifier is connected to that feature throughout its lifecycle and retired when the feature is removed if, for example, a building is demolished.
What is OS Open Data?
OS OpenData provides free digital maps of Great Britain, available for any purpose. Free downloadContact us.
What does WY mean on the map?
Wyoming
US Map with States & Their Abbreviations
| State | Capital |
|---|---|
| Washington (WA) | Olympia |
| West Virginia(WV) | Charleston |
| Wisconsin (WI) | Madison |
| Wyoming (WY) | Cheyenne |
What does Mkt mean on a map?
Ordnance Survey Abbreviations
| M | Mark, Mile, Mooring, Mound |
|---|---|
| Mkt | Market |
| Mkt Ho | Market House |
| MLW | Mean Low Water |
| MLWS | Mean Low Water Springs |
What is GIS system software?
GIS Software. A Geographic Information System (GIS Software) is designed to store, retrieve, manage, display, and analyze all types of geographic and spatial data. GIS software lets you produce maps and other graphic displays of geographic information for analysis and presentation.
Is OS MasterMap free?
The OS Open MasterMap Implementation Programme enables businesses and developers to access more geospatial data for free.
What is OS data?
Ordnance Survey (OS) is the national mapping agency for Great Britain. They produce digital map data, online route planning and sharing services and mobile apps, plus many other location-based products for business, government and consumers.
What is the state WY?
Wyoming is a western state that joined the Union in 1890, thereby becoming the forty-fourth state admitted to the U.S. Wyoming is primarily located in the Rocky Mountain Range of the United States….Levels of Elevation.
| State Name | Wyoming |
|---|---|
| Capital | Cheyenne |
| Statehood Year | 1890 |
| Timezones | America/Denver |
| Postal Abbreviation | WY |