Topo Survey | 2cofly

DRONE SERVICE

Topographic Survey

Topographic surveys are one of the most time consuming and costly services in Guam & the Micronesia region. Depending on the site conditions and total acreage, this could take weeks or even months to complete by the traditional method. By utilizing drones, we can speed up this process dramatically, cutting costs and delivery time by half or better.

MEETING YOUR NEEDS

How it works

There are many ways drones can support a topographic survey. Depending on your end needs and on the site conditions, we can either complete it fully with drones or support a licensed surveyor to speed up their process.

Make informed decisions

LiDAR or Photogrammetry?

Topographic maps can be generated using either a LiDAR sensor or by the photogrammetric method (RGB sensor). Photogrammetry will generally produce a much more accurate topographic data on hard surfaces like pavements and roads. LiDAR will outperform in vegetated areas as the lasers can collect ground data even through tree canopies.

Official or Internal?

If you need to submit the data for official use, a licensed surveyor must be involved. In this case, the surveyor will take the lead where we supplement their data and speed up their data collection process. If you're using this for general reference - like site study for a bid - we can produce an accurate topographic map without the need for an expensive surveyor.

85% of the topographic survey projects 2cofly has done has been with a licensed surveyor for official use. We can work with your surveyor to speed things up and lower costs.

Free consultation

Absolute or Relative Accuracy?

Absolute accuracy gauges precision against a known benchmark or point, whereas relative accuracy assesses internal measurement consistency. Data achieving absolute accuracy is inherently relatively accurate, but the reverse is not.

Absolute accuracy is needed when you need to work off of one coordinate system, need to overlay GIS info, or compare data over a period of time. Relative accuracy is sufficient for general reference, site study, or basic internal use.