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 Erdman Anthony offers 3D laser scanning techniques as a survey alternative for transportation projects. Specific applications of this relatively new technology include:
- Survey for inaccessible areas – The ability of 3D scanners to collect data from a remote location can provide a cost effective solution in difficult terrain and may remove the need to
 enter restricted areas such as railroad rights-of-ways.
- Mapping of slopes and embankments – Contour mapping using total stations can be costly and pose safety concerns, whereas laser scanning greatly reduces field time and collects the thousands of points required for accurate 3D modeling.
- Detailed roadway profiling – Uneven road surfaces that pose threats to motorists can be modeled at intervals as small as one centimeter using laser scanning, providing a visual model that can be analyzed to determine rehabilitation solutions. In addition, roadways can often be surveyed from a safer vantage point, eliminating the need for lane closures or the exposure of survey personnel to vehicular traffic.
- Measuring clearance for signs and utilities – Clearance measurements can be scanned and mapped with a high degree of accuracy.
- Developing as-built drawings – The modeling capabilities offered by 3D laser scanning make it a logical choice for accurately documenting the as-built condition of bridges and other transportation features.
Erdman Anthony's staff is experienced in the use of laser scanners in the field as well as the use of modeling software to develop images for both visualization and engineering purposes.
Click on the following links to view some transportation applications of 3D scanning:
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