Challenge
Planning and engineering documents contain visually dense information distributed across plans, sections, profiles and annotations.
Extracting operationally useful geometry, quantities and construction constraints from these documents is often manual, difficult to validate and heavily dependent on engineering interpretation.
This creates significant overhead for planners, consultants and contractors working through quoting, earthworks estimation, material calculations and project feasibility assessments.
Approach
TEI designed an AI-assisted interpretation workflow combining computer vision, geometric reasoning and progressive human validation.
The system linked information across multiple drawing types, interpreted engineering relationships and generated structured audit trails showing how conclusions and quantities were derived.
Rather than acting as a black-box extraction engine, the workflow was designed around explainability, confidence-aware reasoning and operational oversight.
Outcomes
The resulting workflow enabled more structured interpretation of engineering drawings while improving traceability, validation and transparency across the extraction process.
The system supported workflows such as quantity estimation, geometry extraction, earthworks interpretation, material calculation and planning-document review for operational quoting and feasibility analysis.
The architecture was designed to support iterative refinement, modular expansion and future engineering-analysis workflows.