The “Type F Signs" Sign Design sheet(s) is a table of all the required Type F guide signs for the project. For each required Type F sign, the sheet shall contain the sign assembly number, a graphic image of the final sign assembly, each panel sign size, panel color if non-standard, the number of U-channel posts per assembly, and specific mounting information.
All Type F signs are typically installed on 3-lb U-channel posts in accordance with the NCDOT Roadway Standard Drawings. However, alternatives such as wood supports, or square tubing is allowed. Wood supports may be installed on a case by case scenario if approved by the managing unit. If Type F signs will be composed of multiple panels due to multiple routes, the windload may exceed that allowed by U-channel or wood posts. If this is the case, a different type of support should be investigated. If steel supports are considered, enhanced signing may also be a consideration. (MUTCD Link) Enhanced signing maybe beneficial at complex and multi-lane facility at interstates based on engineering judgement and discussion with project engineer.
If a Type F is to be mounted above, below or back-to-back with another sign, the specific mounting information shall be shown on the “Type F Signs" Sign Design sheet. If Type F signs are mounted back-to-back, they should be of the same or similar size.
If a Type F sign is to be mounted on barrier supports, large or small, the specific mounting information shall be shown on the “Type F Signs" Sign Design sheet. (Standard Drawing Link 903.30)
All text on the “Type F Signs" Sign Design sheet shall be upper case letters.
Additional Resource
MUTCD Section 2D.10 Route Signs and Auxiliary Signs (Link)
Applicable Standard Specifications
SECTION 901 SIGN FABRICATION
SECTION 903 GROUND MOUNTED SIGN SUPPORTS
SECTION 904 SIGN ERECTION
Applicable Standard Drawings
901.50 ARROWS AND SHIELDS
903.20 MOUNTING OF TYPE 'D', 'E', AND 'F' SIGNS ON WOOD POSTS
903.30 BARRIER SIGN SUPPORT ASSEMBLY
904.10 ORIENTATION OF GROUND MOUNTED SIGNS
904.50 MOUNTING OF TYPE 'D', 'E' AND 'F' SIGNS ON 'U' CHANNEL POSTS
