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JapanConstruction and engineering2024 – ongoing

Shimizu Corporation

RAG assistant for construction technical documents

Shimizu expanded an AI assistant after construction-site trials shortened technical-document searches

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Problem

Construction staff needed to retrieve information from extensive procedure manuals and technical standards. Searching those documents took time during site work.

Approach

Shimizu and Lightblue began developing a technical-document assistant in April 2024. Site trials started that July and informed further improvements. The assistant used retrieval-augmented generation to search and reference construction documents.

Results

No published figures

Takeaway

Construction-site feedback informed improvements before broader deployment. Shimizu did not report the size of the search-time reduction.

Categories

Innovation type
Process innovation
AI technology
Generative AI
Evidence
Vendor case study

Sources

Source summaries

[1]Lightblue4 Jul 2025

Lightblue described development and construction-site trials of a technical-document RAG assistant. It reported shorter searches and said broader platform deployment began in April 2025.

Full details are in the original sources.

Added 1 Nov 2026 · Updated 1 Nov 2026
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