MUTCD 11th Edition (2023)
Section 6N.15 — Crossovers
Manual on Uniform Traffic Control Devices, Section 6N.15. Standards, guidance, options and support statements, with figures and cross-references.
Section 6N.15 Crossovers Guidance: 01 The following are considered good guiding principles for the design of crossovers:A. Tapers for lane drops should be separated from the crossovers, as shown in Fig ure 6P-39. B. Crossovers should be designed for speeds no lower than 10 mph below the posted speed, the off-peak 85th-percentile speed prior to the work starting, or the anticipated operating speed of the roadway, unless unusual site conditions require that a lower design speed be used. C. A good array of channelizing devices, delineators, and full-length, properly placed pavement markings…
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