Monitoring Deployment
Instrumentation installation
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The Challenge
- MWAA launched a $78.5 million project in 2000
- Project aimed to replace mobile lounges with an underground train system
- Real-time deformation monitoring with 24/7 internet data access specified
In 2000, the Metropolitan Washington Airport Authority (MWAA) implemented its most ambitious capital construction campaign to date. The $78.5 million West Domestic Tunnel Corridor project supports an automated airport train system, which runs underground and connects the main terminal with the midfield concourses and replaces the mobile lounges currently in use. The detailed specifications called for real time deformation monitoring with data made available through the internet.
The specifications called for optical monitoring targets mounted on buildings structures, support of excavation and tunnel linings, with fully automated motorized total stations with a measurement precision of 1mm for sight distances up to 100m, with wireless data links to control site. The system needed to operate 24/7 and the real-time data had to be available on the internet.
The Solution
Geocomp developed a link between the Geodetic Monitoring Software (GeoMoS) system which controls the survey network and Geocomp’s iSiteCentral® online data collection and presentation system. Geocomp created a secure IP link between the iSiteCentral® SQL database and SQL database used by the GeoMoS system. Data added to the GeoMoS system was automatically loaded into the iSiteCentral® database from which the web pages created reports.
The work was completed within two weeks of notification to start, and enabling web access to real time instrumentation data from the Dulles site.
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