Case Study: Aero-Metric
WHPacific – William R. Fairchild Airport, Port Angeles, Washington – Obstruction Mapping
The Federal Aviation Administration
(FAA) and National Geodetic Survey
(NGS) obstruction mapping requirements and mapping surface definitions evolved with the FAA’s publication of DRAFT Advisory Circular 150/5300-18B. Throughout several iterations of this evolution, Aero-Metric adapted its airport mapping production process to meet the changing specifications. Aero-Metric’s technical expertise and experience with these dynamic requirements allowed our staff to provide detailed feedback to NGS, which ultimately helped define the final mapping standards. Aero-Metric provided WHPacific with complete airport obstruction mapping services including orthophotography, a digital terrain model, and 1:2400 scale planimetric mapping which were submitted to and accepted by FAA and NGS.
Illinois Department of Transportation (IDOT) – Corridor Mapping
needed an innovative solution to generate a detailed 3D model of the U.S. Highway 20 corridor in the northwestern corner of Illinois. Aero-Metric acquired airborne lidar data for a four-county area and leveraging Terrapoint
, one of our data acquisition partners acquired terrestrial lidar data from a moving vehicle. Aero-Metric staff integrated both datasets generating a complete 3D model of the right-of-way, totaling about 13.5 miles, which was used in the engineering of a major highway improvement program. Aero-Metric’s comprehensive lidar mapping solution expedited the project and provided a much safer and more cost-effective alternative to having surveying crews on the roadway.
Illinois State Toll Highway Authority (ISTHA) – Transportation Mapping
ISTHA’s Open Road Tolling Initiative Project utilized Aero-Metric’s Digital Mapping Camera (DMC) and airborne lidar sensors to create high resolution data sets for the duration of the three year project. Aero-Metric provided design-scale mapping services at numerous project sites, including toll facilities slated for expansion, mapping for a new highway interchange at I-57, the Tri-State Tollway (I-294), and an as-built survey.
Low altitude aerial photography was acquired on a compressed time schedule to support mapping associated with the Open Road Tolling Initiative, thus facilitating faster delivery of mapping to all design survey engineers associated with the project. The exceptionally high spatial resolution and sharp radiometric quality of these deliverables permitted the capture of very small design scale planimetric structures within the project corridor.
ISTHA - Geospatial Data Project Catalog
To provide easy access to the wealth of data obtained for the ISTHA tolling initiative, a digital catalog of all image files and mapping created during the as-built survey of the I-355 corridor development was prepared to assist in rapid recovery of all reference materials. Aero-Metric created a geodatabase with an easy-to-use ArcMap interface that provides one-click access to every dataset acquired during the project – including orthorectified imagery, vector planimetry, GIS feature classes, cross section profiles, and project metadata layers such as flightlines, exposure stations, and stereo model boundaries. Aero-Metric also provided on-site installation, testing, and training support to ISTHA staff. Aero-Metric’s solution has provided ISTHA with improved knowledge of where their geospatial data is stored and allows easy access to anyone who needs it.
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