06A Sign installations should be at least 200 feet apart where possible.

06B Where physical conditions limit visibility, the sign location should be suitably adjusted.

06C As an example, a ground-mounted sign placed immediately beyond an overpass may not be sufficiently visible. Placing the sign just before, or well beyond, the overpass could improve its visibility.

09A Except on freeways, warning signs should generally take precedence over regulatory and guide signs, with a warning message for a greater hazard taking priority over one for a lesser hazard. Regulatory signs should be next in importance, with the sign posting the most important regulation superseding others. Guide signs should normally be the lowest in priority, as their locations are generally more flexible than those for other types of signs. Community wayfinding and acknowledgment guide signs should have a lower priority as to placement than other guide signs. Information of a less critical nature should be moved to less critical locations or omitted.

09B On freeways, guide signs should have highest priority, followed by warning and regulatory signs.