Surveyor
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Mobile Highway Inventory and Measurement:

 

survey.jpg (75354 bytes) Surveyor™ is a mobile data collection system designed to collect measurement data about objects, features, structures and landmarks located along highways and roadways, for highway planning, managing, and maintenance.  It measures heights, widths, and depths of objects, as well as offsets form the center or edge of the road, and spatial location, using GPS or inertial navigation.

Surveyor was developed and is being marketed by Roadware Inc.

grade.jpg (28463 bytes) The first stage of surveyor is a mobile data collection system, consisting of a calibrated video system on a vehicle.  The vehicle is instrumented with an ultrasonic grade system to reference the position of the vehicle (camera) with respect to the road, and with a position orientation system for global positioning.
The second stage of surveyor is an interactive workstation based software package that is use to retrieve and select images, allowing the user to pick objects on the image.   Surveyor than calculates dimensions and position in space of the object, and stores it in a database as an inventory entry, annotated with the results of the measurements.

REFERENCES:

Maerz, N. H., and McKenna, S., 1999. Mobile highway inventory and measurement system. Transportation Research Record No. 1690, pp. 135-142. 

® Surveyor, is a registered trademark of Roadware Corporation.