Geo Data German Streets (streets with geo references) - Coordinates of the street and road parts for navigation and geo coding

Geo data of the Federal Republic of Germany with coordinates on street level for navigation and geo coding.

Street coordinates or also called street section coordinates are meaning the summary of several postal house addresses to an averaged position in the coordinate system on street or street section basis. The street coordinates are to be used with applications, which are developed to assign street oriented address groups positions in the form of coordinates. By Geo Coding streets or street sections become cartographically representable.

Street-exact geo data are on the one hand less expensive than the high resolution house-exact geo data, on the other hand they are more exact than the economically priced administrative geo data.

The possible field of application is very various. So e.g. own address lists can be enriched with geo references and visualized on suitable map material. The application scope reaches from information systems and navigation services, geo marketing, telecommunications and UTMS based services up to web applications and tasks of the public utilities, emergency services, security forces and delivery services. Another point of interest can be the establishing relationships between data derived from different hierarchies and levels. For example, it could be desirable to know to which federal state, administrative district and city a postal address belongs to.

The coordinates of the streets are present as geographic coordinates, UTM coordinates and Gauss-Krueger coordinates. Geographical coordinates in degree notation are particularly suitable well for searches with Google Earth. Here is as an example an Internet URL with coordinates from the "Geo Data German Streets", which can represent the location of Killet Software Ing.-GbR: http://maps.google.com/maps?ll=51.397363,6.450883. The first value behind the identifier "ll" (lat / lon) is the geographical latitude, then the geographical longitude follows. The shown URL can be inserted directly into the address field of the browser to represent a map cutout on the screen.

Table of contents of this site

Geo data with street coordinates of the Federal States
Data fields of a street coordinate table
Linking with other database tables
Quality of the street-exact Geo data
Use of the coordinates contained in the Geo data tables
Conversion to the necessary data format
Acquisition of a license and right of use of the database tables
Prices and source of supply
Note to the download of the test data and the data converter

Geo data with street coordinates of the Federal States

For the area of the Federal Republic of Germany street coordinates with a coverage of 100% are available. The Street Coordinates are delivered as a standard for the whole Federal Republic of Germany or divided in its Federal States.

StSWH  Schleswig-Holstein              ap. 58,000 streets
StHHA  Hamburg                          ap. 9,600 streets
StNDS  Lower Saxony                   ap. 184,000 streets
StHBR  Bremen                           ap. 6,200 streets
StNRW  North-Rhine Westphalia         ap. 233,000 streets
StHES  Hesse                          ap. 115,000 streets
StRPL  Rhineland Palatinate            ap. 92,000 streets
StBAW  Baden-Wurttemberg              ap. 213,000 streets
StBAY  Bavaria                        ap. 275,000 streets
StSAL  Saarland                        ap. 17,000 streets
StBER  Berlin                          ap. 14,000 streets
StBRB  Brandenburg                     ap. 49,000 streets
StMVP  Mecklenburg West.-Pomer.        ap. 31,000 streets
StSAC  Saxonia                         ap. 67,000 streets
StSAN  Saxonia-Anhalt                  ap. 45,000 streets
StTHU  Thuringia                       ap. 44,000 streets
StGER  Germany (complete)           ap. 1,460,000 streets

The data base tables "Geo Data German Streets" can be licenced economically for the Federal States of Germany or for completely Germany. Other compositions on administrative or postal units are possible. So the street coordinates can be arranged e.g. for a district or for a city / municipality or for a postal area. Please contact us, if you need the geo data in another composition.

The free test data, downloadable of the Internet, contain only a small, randomly selected representative excerpt from the original tables of the Federal States of Germany. The test data may be used for test purposes only. A commercial use of that data is not permitted.

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Data fields of a street coordinate table

These data fields are contained in the data tables:

Designation of the street / street section
Begin of the street number range of the street / street section
End of the street number range of the street / street section
Postal zip code
Designation of the town / city
Designation of the town quarter (optional)
Administration ID (municipality key)
Geographic longitude in degree notation (WGS84)
Geographic latitude in degree notation (WGS84)
Geographic longitude in degree/minute/second notation (WGS84)
Geographic latitude in degree/minute/second notation (WGS84)
Gauss-Krueger easting (DHDN) on the natural meridian strip
Gauss-Krueger northing (DHDN) on the natural meridian strip
Gauss-Krueger easting (DHDN) on an uniform meridian strip
Gauss-Krueger northing (DHDN) on an uniform meridian strip
UTM easting (ETRS89) on the natural meridian strip
UTM northing (ETRS89) on the natural meridian strip
UTM easting (ETRS89) on an uniform meridian strip
UTM northing (ETRS89) on an uniform meridian strip

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Linking with other database tables

Using the data field MUNIC_CODE, which contains the official municipality key (Kreisgemeindeschlüssel, KGS) of the town / city, you can link the street coordinates to additional town specific data from the database tables of the product "Geo Data German Admin". For example, you can add federal states, provinces, districts, population and area values, car license plates, landscapes, natural areas, topographic map numbers and names and much more.

More detailed information can be found in the data specifications of the product "Geo Data German Admin.

Quality of the street-exact geo data

The geo data offered here are in very precise quality and are present in several coordinate and reference systems. The geo data are specifically for your order purchased from the current data release of well-known international manufacturers e.g. such as NAVTEQ, Tele Atlas or INFAS. The geo data then are supplemented, unified and, where appropriate, adapted to your needs by KilletSoft. The geo data therefore are always up to date and are subject to constant quality control by the manufacturer.

The street-exact geo data are used in many mobile navigation systems. The accuracy refers to streets or street sections. The street coordinate is always on the middle of the road.

Detailed information and hints to the use of the geo references can be found in the files of the download or in the detailed Data Specification.

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Use of the coordinates contained in the Geo data tables

The coordinates are present as geographic coordinates, as Gauss-Krueger coordinates and as UTM coordinates. Because the UTM coordinates and the Gauss-Krueger coordinates are converted to a uniform meridian strip, distances between two points can be calculated by the simple execution of the Pythagoras theorem. That has the advantage in relation to the computation with geographical coordinates (see below) that it is substantially simpler and much faster. The result is the distance between the points in meters.

Formula for the distance calculation with Gauss-Krueger coordinates:
difEast      = abs(GK_E_CENT_1 - GK_E_CENT_2)
difNorth     = abs(GK_N_CENT_1 - GK_N_CENT_2)
distance     = sqrt(difEast * difEast + difNorth * difNorth)
  with
GK_E_CENT_1:   Easting of the first coordinate
GK_N_CENT_1:   Northing of the first coordinate
GK_E_CENT_2:   Easting of the second coordinate
GK_N_CENT_2:   Northing of the second coordinate
abs():         Absolute value function
sqrt():        Square root function 
distance:      Distance in meters as result

Formula for the distance calculation with UTM coordinates:
difEast      = abs(UTM_E_CENT_1 - UTM_E_CENT_2)
difNorth     = abs(UTM_N_CENT_1 - UTM_N_CENT_2)
distance     = sqrt(difEast * difEast + difNorth * difNorth)
  with
UTM_E_CENT_1:  Easting of the first coordinate
UTM_N_CENT_1:  Northing of the first coordinate
UTM_E_CENT_2:  Easting of the second coordinate
UTM_N_CENT_2:  Northing of the second coordinate
abs():         Absolute value
sqrt():        Square root 
distance:      The result is the distance in meters

Geographic coordinates are indicated in longitude and latitude. Usually longitude and latitude are represented in the degree notation, which is also called decimal notation. Geographical coordinates in the degree notation are for the distance computation better suitable than geographical coordinates in the degrees/minutes/second notation. For a distance computation the longitude and latitude of the first point (LON_DEC1,LAT_DEC1) and the longitude and latitude of the second point (LON_DEC2,LAT_DEC2) are needed. If the latitude has a minus sign, the point is on the southern earth hemisphere, otherwise on the northern earth hemisphere. If a longitude has a minus sign, the point is situated west of the Greenwich meridian, otherwise east of it. In the Federal Republic of Germany no minus signs occur, because all coordinates are on the northern earth hemisphere and east of Greenwich.

As preparation for the distance computation the longitude and latitude are 
converted into radians. The unit of the radian is [rad].
Lon1r     = LON_DEC1 * PI / 180
Lat1r     = LAT_DEC1 * PI / 180
Lon2r     = LON_DEC2 * PI / 180
Lat2r     = LAT_DEC2 * PI / 180
  with
LON_DEC1:   Longitude of the first point in degree notation
LAT_DEC1:   Latitude of the first point in degree notation
LON_DEC2:   Longitude of the second point in degree notation
LAT_DEC2:   Latitude of the second point in degree notation
Lon1r:      Radian of the longitude of the first point
Lat1r:      Radian of the latitude of the first point
Lon1r:      Radian of the longitude of the second point
Lat1r:      Radian of the latitude of the second point
PI:         Circle constant Pi (3,14...)

Now the longitudes and latitudes of the two coordinates are so far prepared
that they can be inserted into the formula for the distance computation.
distance =  r * acos[sin(Lat1r) * sin(Lat2r)
            + cos(Lat1r) * cos(Lat2r) * cos(Lon2r - Lon1r)]
  with
sin():      Sinus function
cos():      Cosinus function
acos():     Arcus Cosinus function
r:          Earth equatorial radius = 6378137 meter
distance:   Distance in meters as result

The conversion of the geographic, Gauss-Krueger and UTM coordinates into another coordinate and/or reference system, can be accomplished with the coordinate transformation program TRANSDAT or as purchase order. Like that it is possible to convert e.g. into the Lambert coordinate system or to Soldner coordinates and into the usual reference systems.

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Conversion to the necessary data format

As a standard the database tables are present in the file format CSV (Comma Separated Values). The used character set is ANSI. This format is used often and in most cases you can import the data directly into your own system. For example, you can process the data directly in MS-ACCESS or MS-EXCEL without further editing.

The downloadable freeware program CONVERT converts the available database tables into other data formats and character sets with the necessary sortings and selections. With the program for example CSV data can be converted into the SDF format (Simple Document Format) or into the dBase format. For the use of the data on different platforms it is possible to select between the character sets ASCII, ANSI, UTF8 and UniCode. Thus the import of the data in any database management system or file system will be possible.

For the import in MySQL or SQL databases the necessary "CREATE TABLE" script can be generated. Further the selection of the data on data fields and data records is possible. In addition the data can be sorted on base of the data fields. Data from several files can be joined to a common file.

Here you can have a look to some screenshots of the converter program.

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Acquisition of a license and right of use of the database tables

The license models described here require only a unique payment. No additional payments are raised as a function of the number of installations or on the service life of the license. The service life is unlimited. The purchase of economical updates on existing licenses is possible at any time.

The geo data presented here can be used company internal or for free of charge services in the Internet. The data are licensed for different types of use:

Simple License: The licensed database may be used on up to five workplaces in a branch / office of the licensee.
Company License: The licensed database may be used on up to twenty workplaces within a company at several branches / offices of the licensee.
Internet License: The licensed database may be used in one Internet presence of the licensee. Thereby the data are merged exclusively into for the Internet users free of charge accessible services.

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Prices and source of supply

Pricing and ordering information can be found in the Price list. Order the "Geo Data German Streets" with the electronic Order Form.

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Download of the test data and the data converter

A selection of test data from "Geo Data German Streets" with the detailed data description and with informations about the use of the data can be downloaded as ZIP packed file by the Internet. The Freeware program CONVERT, developed by KilletSoft, for converting and adaptation of the data is ready for download if necessary. For unpacking the download files you need an unzip program, which you can download from this side.

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