Gls monitoring | Sydney metro central station expansion
Gls monitoring | Sydney metro central station expansion
Maxwell GeoSystems has created a world-leading software system for the display and interpretation of construction data.

MissionOS is deployed on the Sydney Metro Central Station Expansion. Maxwell GeoSystems is providing its cutting-edge Data Management system, MissionOS, for GLS Monitoring on the major construction works for Sydney Metro’s Central Station.

Works consist of a new 27-meter deep metro station box next to the existing Central station precinct with about 6,000 tonnes of crushed rock excavated each week. In addition, an 80-meter long, 19-meter-wide construction tunnel was excavated under 10 live tracks to deliver the Central Walk. Due to the requirement for uninterrupted rail service, MissionOS is serving as the primary risk management tool, providing real-time notifications of any extensive movements and automated report generation. Sydney Metro – Central Station Main Works instrumentation produces data in many formats. The Generic Data Loader (GDL) is user-configurable and can transfer text file based data into MissionOS databases. MissionOS accepts raw data and performs calculations, or accepts already calculated data from third party software. On Sydney Central, MissionOS employs a number of Python scripts to pre-process data before it enters the database. As well as displaying data in the live portal MissionOS PDF produces 46 daily monitoring reports with a total of 800 canvas sheets displaying up to date data for 19,000 instruments. Data that breaches alarm values creates a blog notice. The MissionOS breach notification system is configured so that the gls monitoring team views all Level 1 Alarms and invites relevant groups to contribute to the breach notice using the MissionOS blog features. Level 2 and Level 3 breaches automatically go out to the groups. Track-mounted prisms are often removed and reinstalled during frequent track maintenance, meaning the MissionOS instrument revision system is vital for continuity of movement history.

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