In order to fully benefit from the advantages of satellite-based GNSS technology – and in particular of the new automated positioning services – the Swiss reference frame, dating back to 1903, was modernized and connected to the European reference system. Practically all European countries chose a similar approach. The prerequisites for a new and modern geodetic reference frame were thus established in the 1990ties. The new reference frames (one each for position and height) constitute a surveying control network which provides highly accurate coordinates and heights over all of Switzerland.
Based on the tools and fundamentals of previous projects, but also on various insights and their resulting demands, the transfer of the cadastral surveying data – one of the most important and complex reference data sets of the entire federal basis geodata – into the new geodetic reference frame LV95 must be supervised and coordinated.
Articles 4 and 53 respectively of the geoinformation ordinance require that all of the basis geodata under federal jurisdiction must be maintained in the geodetic reference frame LV95 by 2020. The vertical reference frame will remain the LN02 (Art.5). The reference data, which include the cadastral surveying data, must be transferred into the new geodetic reference frame LV95 by the end of 2016.
