MUTCD 11th Edition (2023)
Section 2E.45 — Guide Signing in Tunnels and Similar Structures
Manual on Uniform Traffic Control Devices, Section 2E.45. Standards, guidance, options and support statements, with figures and cross-references.
Section 2E.45 Guide Signing in Tunnels and Similar Structures Support: 01 The application of the provisions for freeway and expressway guide signs in tunnels and other similar structures can present unique challenges not encountered elsewhere due to the extended and continuous distances of constrained vertical and horizontal clearances in which to place signs. The effect of these constraints is particularly evident when there are interchange exit ramps inside the tunnel that require guide signing. As a result, it might not always be possible to use the typical layouts for guide signs inside a…
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