GPS Mapping
GPS provides a precise, efficient method of identifying geographic coordinates of landmarks and facilities. With many municipalities and utilities utilizing AM/FM and GIS systems, the geographically referenced data gathered by GPS is one of the first steps in assuring that the land base and facility data has the integrity needed to produce the highly accurate, detailed maps and databases you need.
The GPS field data can be processed much more quickly than if were gathered by conventional means, cutting the time required for map and database production. Measurements that were difficult to obtain using traditional methods are much easier with GPS because you do not need a line of sight. Integrating a laser rangefinder with the system enables us to shoot offsets in inaccessible areas, increasing accuracy and efficiency even more.
The ability to go back and use GPS to quickly update data and maintain these accurate maps and databases allows you to save time and money on your records updates and aids in plant maintenance. This translates to more reliable service and better customer relations for your company.
Resources
Northwind uses the Trimble GeoXH handheld unit, Trimble's top of the line solution for high accuracy GIS data collection. The system uses H-Star™ technology to deliver subfoot (30 cm) post processed accuracy. By adding the Zepher™ attenna to the GeoXH unit, we can achieve 8 inch (20 cm) accuracy. Our preferred field software for GPS projects is Trimble's TerraSync Professional which provides a flexible and effective means for quick and easy data collection. To maintain data integrity, the data structure can be designed to meet the requirements of your enterprise geographic information system (GIS). These resources create a highly efficient means of collecting spatial data for our customers.
Applications for GPS Mapping
- Mapping utility facilities - pole lines, underground electric and telecommunications lines, gas lines, water lines, sewer lines
- Planning routes for proposed facilities including corridor analysis for environmental impact, wetlands mapping, land purchase, etc.
- Facilities management
- Preventive maintenance, trouble shooting and service restoration
