Address databases

Our company has assumed the development of a highly accurate, house address database, covering the most populated areas of the country. Our production method ensures the production of much higher quality data, as compared to the general range, street-block to-from (corner) addresses, obtained by road section interpolation.

This map layer of ours makes up the individual house address numbers dataset, produced between 1998 and 2009 by CData-Térképtár Ltd., the expansion, updating and maintenance of which being performed by us on a continuous basis. To date, our data covers 23 county capital cities, as well as more than 500 other towns and villages, in the central and northern region of Hungary, where two-thirds of the country’s population live.

Source data for addresses comes from various geodesic partners, including different accuracy and freshness, no attribute possessing AM/FM oriented data, in DWG/DXF format, with an average accuracy corresponding to an 1:10 000 scale drawing. In addition, we use local governments’ detailed urban planning and regulation plans, in PDF, HTML or other image formats, published by these on the Internet. If so required, we often perform field checks, as well.

During processing of these data, accuracy, completeness and freshness of source information are compared with as many as 4-5 other data sources. Whenever is possible, we also use as reference high resolution orthorectified aerial photography and satellite imagery. The address layer’s attributes are populated with our own, self-developed algorithms, followed by a final stage manual completion and a detailed quality check.
Data format: MapInfo TAB and ESRI SHP. Projection system: data are stored in EOV and WGS84 coordinate systems; however, we can provide the orders in any other format or projection.

The address layer contains text objects, representing the house address numbers, placed along the inner boundaries of the respective property parcels, along the street centrelines, rotated to be parallel with these.

Wherever parcel numbers (HRSZ) were not available, we included the X-Y coordinates of the house number texts themselves, thus ensuring a usable spatial reference for geocoding purposes.
The attribute structure of the address datasets is the following:

KSH code: Integer
Settlement Name: Character (64)
Street Name: Character (64)
Street Type: Character (64)
House Number: Character (16)
Postal Code: Character (4)
HRSZ: Decimal (10,3)
HRSZX: Decimal (10,3)
HRSZY: Decimal (10,3)
AddressX: Decimal (10,3)
AddressY: Decimal (10,3)

Railway network

MCData-Térképtar Ltd. has developed the map database of Hungary’s railway network during 2004-2008, as part of the national railway corporation’s (MÁV) commission. Our company surveyed the entire railway network of the country, including the main rail line sections and infrastructure objects important for rail operation.

During processing, we compared our own surveyed data with other rail infrastructure inventory datasets, in order to maximize spatial accuracy and completeness and freshness of information. With data functionality in mind, we created two different railway network databases: a simpler, single-lined one, including all train stations, and a more complex one, including all main lines, train stations and all surveyed railway infrastructure elements, including rail crossings, over- and underpasses, etc.

Data formats: MapInfo MapInfo TAB and ESRI SHP. Projection system: data are stored in EOV and WGS84 coordinate systems; however, we can provide the orders in any other format or projection.