City surveying

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The term city surveying or municipal surveying includes all surveying and cartographic services that are required within a municipal and city administration. These services are divided into key areas

  • Measurement,
  • Geographic information,
  • Evaluation and
  • Land reassignment.

Depending on the size of the city ​​administration , the tasks of city surveying are carried out in a surveying department or in an independent office. The management of the real estate cadastre is only assigned to the area of ​​city surveying in some federal states. As a rule, city surveying is also responsible for assigning the names of streets, paths and squares as well as house numbering .

Priority tasks

measurement

The surveying tasks include the sub-areas of engineering surveying and the execution of property surveys (but only if the municipal surveying office is approved as a surveying agency according to the respective state law). The main focus of the surveying activity is the production of the city basemap. Individual elements in the street space (e.g. lanterns, traffic lights, signs, etc.) as well as other topographically relevant structures (e.g. delimitation of different uses in the street space, embankments, fences, walls, hedges, etc.) are measured on site and after mapped out a uniform code of signs. In connection with the land map provided by the land surveying administration, the city basemap then results as the most important map basis for the municipal planning tasks, e.g. B. as a map basis for development plans or as planning documents for road expansion plans.

Geographic information

The task of geographic information usually includes the city-wide provision of spatial data in a geographic information system . Here, the city survey has the task of providing data both from its own geographic base data (e.g. the city basemap) and from externally provided geographic base data (e.g. the land map and aerial photos from the state survey administration). The system maintenance and operation of the geographic information system is often subject to city surveying. The respective specialist office is then responsible for recording and managing the geographic data .

In addition to the operation of a city-internal geographic information system, the spatial data stocks in geoportals have recently been made accessible to a broader public. As a rule, the city survey is in charge of setting up and configuring these geoportals.

The production of analog maps and plans is also to be seen as a sub-area of ​​geographic information. These include:

  • the city basemap for the scale range from 1: 500 to approx. 1: 2000 for the parcel-related representation of spatial issues,
  • the city map for the scale range from 1: 2,500 to approx. 1: 10,000 for the presentation of district-related issues and
  • the city map for the scale range from 1: 10,000 to approx. 1: 20,000 for tourist purposes and as a map base for district-wide facts.

These maps are adapted to the respective task in terms of content and elaboration (depth of detail) and represent the map basis for the spatial reference levels listed in the MERKIS recommendations.

rating

The city's own assessment body has the task of determining the respective values ​​for property purchases or sales ( property valuation ). In most cases, the office of the expert committees is also assigned to the municipal surveying office. This leads the administrative activities of the expert committee . However, it should be noted here that the valuation body and the expert committee for property values ​​are not identical. The expert committee is usually not a municipal committee, but a committee made up of experts who are appointed by state law.

Zoning

One of the tasks of land management is the creation of plots of land that are suitable for structural or other use in terms of location, shape and size. The real estate is reorganized on the basis of legally binding development plans or within a built-up part of the town on the basis of simple plans through a procedure regulated by law in the Building Code . The city survey takes on the task of the office of the reallocation committee and oversees the process.

Advocacy groups

Federal representation

  • Expert commission "Municipal Surveying and Geoinformation" in the German Association of Cities

Representation of interests organized for each country

  • Urban surveying working group in the Rhineland-Palatinate City Council
  • Working group of the Hessian surveying and property office managers in the Hessian city council
  • Working group of the municipal surveying offices in the Baden-Württemberg Association of Cities

literature

  • K. Kummer, J. Frankenberger (Ed.): The German surveying and geographic information system 2011. Wichmann, ISBN 978-3-87907-498-3 .
  • K. Kummer, J. Frankenberger (Hrsg.): The German surveying and geographic information system 2010. Wichmann, ISBN 978-3-87907-487-7 .

Web links