Overview
Guide signing can be divided into two basic categories: primary and supplemental. Primary signing includes standard interchange and intersection signing, distance signs, as well as regulatory, warning, and route marker signs. Supplemental signing is used to provide drivers with information regarding special points of interest that attract large numbers of people, are accessible from an interchange or intersection and are not places usually shown on primary guide signing. Availability is dependent upon the location and placement of primary signing to ensure minimum spacing requirements are met.
Type I
 | Type II (left)
 | Type II (right)
 |
Location
- On highway right of way
- At approach to interchange or intersection and along interchange off-ramps
Size
- Varies by name of facility and highway type
Content
- Various categories of eligibility
Fabrication, installation and maintenance
Paid for by
Relevant law, code, manual
Contact