Survey Personnel and Equipment

Ludwig Engineering was a pioneer in the development and use of CADD for design and radial staking using Total Station measuring devices. We purchased our first CADD system in 1983 and we have kept up with the state of the art equipment since then.

All survey field crews use Geodimeter 440 Total Stations that measure distances and angles electronically, automatically breaking down slope distances to their horizontal and vertical components. Attached to the Geodimeter 440 is a Geodat 500 Data Collector which records and breaks down the field data. The data collector will automatically transfer the information from the field to our office computer and plotter. The Geodimeter 440 enables our field crews to set construction stakes for both LINE and GRADE in one operation with a two-man survey crew.

The coordinates and elevations of the control points are calculated by the office computers in the design stage and transferred electronically to the Data Collectors which transfers the information electronically to the Total Station survey instruments. The Total Stations electronically measure the distance and vertical angle to a construction stake and calculate the elevation of the construction stake. They also automatically calculate the CUT or FILL from the stake to the structure to be constructed.

This process can also be reversed and preliminary topographic shots can be transferred electronically from the Total Station to the office computer which will automatically interpolate and draft a contour map from the field located points.

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