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Updated US Tunnel Inspection Guidelines

The National Tunnel Inspection Standards (NTIS) has a new guidance document, Compliance Review Manual, that gives guidance and direction to the FHWA Division Bridge Engineers in performing National Tunnel Inspection Program (NTIP) compliance reviews of State tunnel safety inspection programs.

Updated US Tunnel Inspection Guidelines

Study on measures to reduce collisions

The peak organisation of Australasian road transport and traffic agencies, Austroads, identifies factors that contribute to the occurrence and severity of collisions adjacent to and within tunnels and suggests remedial treatments. The objectives of this study were to identify factors that contribute to the occurrence and severity of collisions adjacent to and within tunnels and remedial treatments that will reduce the incidence and severity of these collisions.

Study on measures to reduce collisions
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