Sandia GIS : GPS

We have captured and edited many thousands of miles of roads in support of E-911 and rural addressing applications. In addition to our experience with GPS hardware and software, we also have a former county 911 director on staff so we have the perspective from both sides, each as a contractor and end user of the data.

We primarily use Trimble systems such as the ProXR, ProXH, GeoXH or the venerable GeoExplorer with Pathfinder Office for post processing and occasionally use Garmin units such as the GPS 12 for field work. These units provide excellent accuracy and features for their cost and are reasonably quick to setup and use. Should you wish to purchase any Trimble units we can most certainly help there as well and occasionally we have access to demo units at discounted prices. We can also arrange for training with your Trimble equipment as well.

If you are beginning the process of addressing an area such as a city or county, we can help with detailed advice down to which method and software to use for addressing the line segments in your GIS files. If necessary, we can go to council or commission meetings with you to explain the process and various pitfalls to be avoided along the way to make things go smoother.

Figure 1 shows a large county where we mapped approximately 10,000 miles of roads with gps, 1 meter DOQQ imagery and 1 foot orthophotography. Roughly 4,000 miles of the total mileage mapped was eventually geocoded and addressed for an E-911 project.

Fig1.

If you are contemplating city or county addressing, please give us the opportunity to help or bid on your project. We will also be happy to act as a consultant and help your organization write your RFP or sort through proposals.