Conditional laser tunnel inspection compared to the traditional methods for Underground

What is it about?

This study evaluated the practical application and performance of the innovative conditional laser tunnel inspection in the London Underground (Circle line) compared to the currently used traditional method. The results demonstrated that improved accuracy in the overall inspection system is achieved using the laser inspection system as evidence by the improved inspection report scores compared to those of the traditional inspection method, consequently improving the estimation of required maintenance life cycle and budgeting. Although more expensive, the laser inspection method results in considerable savings to the civil engineering maintenance costs and removes the safety risks associated with the traditional inspection method.

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