Questions answered by Evan Bollard, GlobalPOS

GIS and GNSS are increasingly being used as an integrated part of the management process in the utility sector to improve productivity and reliability. To operate effectively these GIS data sets need an appropriate level of accuracy in the 3D position of features on or in the ground. As well, a measure of the uncertainty of each of these positions is also required to enable effective placement, relocation or other management requirements for the various assets and their associated data. GNSS is one tool that can effectively provide 3D positions in a homogeneous reference frame for long-term locational accuracy for very large scale projects down to small job sites, both in the field and interactively with the office. It is less commonly known that GNSS is the most cost-effective form of highly accurate time transfer over short or long distances. This can assist in network control applications in the electricity sector or in communications networks used by all utility sectors.

High quality locational information on a consistent datum can also assist in the transfer of information databases between utilities in order to, among other things, minimise problems associated with asset disturbance because “we didn’t know it was there.” GNSS facilitates these capabilities in a cost effective and productive manner.

Do you have a burning question about GNSS, need a practical answer to a problem you’ve encountered, or even just curious? Then, ask your expert! Send your questions to Evan care of [email protected] 

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