The verb "should" is typically used in what kind of statements found in the MUTCD?

The verb "should" is typically used in guide statements found in the Manual on Uniform Traffic Control Devices (MUTCD). Guide statements provide recommendations or suggestions for best practices in traffic control and roadway design. They aim to assist traffic engineers, planners, and the public in understanding the ideal practices for safety and efficiency, rather than imposing strict legal requirements.

In contrast, regulatory statements utilize stronger language indicating mandatory actions to be followed, which is not the role of "should." Warning statements also convey important information about hazards but typically do not utilize "should" as they are meant to alert rather than guide. Interim statements are transitional and may include temporary measures or guidelines but do not primarily focus on suggestion or recommendation like guide statements do. Therefore, the use of "should" aligns clearly with the intent of guide statements in the MUTCD.