As one of the UK’s largest companies, BT manages a vast property portfolio with 8,500 buildings, including 5,000 telephone exchanges, offices, workshops, and laboratories. To stay competitive, BT sought a streamlined approach to managing 85,000+ technical drawings related to its infrastructure. A high-speed, scalable drawing management system was required to improve efficiency, retrieval times, and network performance.

Challenge

BT faced three major hurdles in optimizing its engineering drawings:

  • Multiple CAD formats: Drawings were created using AutoCAD®, CADAM®, Intergraph®, and Microstation®, leading to compatibility issues and inefficiencies.
  • Slow retrieval & network load: Accessing files across 50 locations required considerable data transfer, causing network delays.
  • Environmental compliance & accuracy: BT needed ISO14001-certified documentation to track drainage routes and environmental management across its sites.

A comprehensive solution was needed to standardize workflows, accelerate access times, and minimize network strain while ensuring compliance with international standards.

Solution

BT implemented a centralized drawing archive system, supported by GTXRasterCAD® and GTXRaster CAD PLUS licenses integrated with AutoCAD®. Key elements included:

  • Hybrid Raster & Vector Editing: GTXRasterCAD® enabled engineers to edit scanned drawings without full vector conversion, speeding up the workflow.
  • Optimized Network Usage: GTX software generated raster thumbnail previews (TIF files), allowing five-second retrieval times across locations while minimizing file transfers over BT’s multi-protocol routed network (MPRN).
  • Environmental Data Tracking: GTXRasterCAD PLUS® helped BT maintain ISO14001 compliance, enabling engineers to add drainage pathways and discharge routes directly to scanned site plans.

Result

BT’s new system achieved five-second retrieval times, with 85,000 drawings online and 2,000 to 3,000 new drawings digitized each month.

  • Engineers at 50 locations can view, red-line, edit, and print drawings seamlessly.
  • Reduced network congestion led to faster access speeds, improving collaboration.
  • The digital archive supports long-term data security, allowing for future web-based access for field engineers.

"Apart from giving us enormous flexibility in how we work with our scanned drawing files, the GTX products have been essential to the success."
- Paul Bagnall, BT CAD Systems Manager