Surveying has come a long way from relying solely on traditional methods, and today most crews use a mix of GPS and total stations. Both tools are highly accurate, but they serve different purposes depending on the job and site conditions. Knowing when to use each can save time in the field.
GPS works by connecting to satellites to determine position on the ground. With RTK or network corrections, it can achieve centimeter-level accuracy without needing line of sight between points. That makes it a great option for open sites with clear-sky visibility. On large parcels, farm fields, or early-phase construction sites, GPS allows you to move quickly and cover a lot of ground without constantly resetting equipment. It’s especially useful for boundary work, topo surveys, and establishing control. In many cases, one person can handle the work efficiently. The downside is that GPS can struggle in tougher environments. Heavy tree cover, tight urban areas, or interference from nearby structures can affect the signal, slowing things down or reducing accuracy.
Total stations take a different approach. Instead of relying on satellites, they measure angles and distances directly using a laser. As a result, they don’t have the same signal interference issues and tend to perform better in areas where GPS falls short. If you’re working in the woods, in a city, or around buildings, a total station is usually the more reliable choice. It’s also essential for construction layout and any work that requires tighter tolerances. You’ll get consistent, dependable measurements, which is critical when accuracy really matters. The tradeoff is that total stations require a line of sight and usually more setup time.
Most survey jobs don’t come down to choosing one over the other. In reality, the best approach is often to use both. A common workflow is to run GPS to establish control around a site, then switch to a total station to pick up detailed features or work in areas where GPS isn’t reliable. Since adopting this practice, I have noticed that our jobs have become much more efficient and smoother.
At the end of the day, it comes down to the site and the scope of work. If you’ve got open sky and need to move fast, GPS is hard to beat. If you’re dealing with obstructions or need tighter control, the total station is the better tool. Understanding when and how to use each is what keeps a project running smoothly and helps avoid problems later.
