Signing and Delineation Unit (SDU) Procedures Manual  

​Legend Design

In urban areas where there is a combination of a street name and a destination on the guide sign, the street name shall be above the destination on the sign.

Arrows on Overhead Signs

Type A Arrows on overhead exit direction signs are placed to the right or left of the sign message (depending on direction of the exit) and centered vertically on the sign.  Type C arrows (downward pointing) are lane assignment arrows and shall be used for overhead guide signs to prescribe the use of specific lanes.  Lane control plaques may be used on non-freeway overhead signs to provide additional guidance to the user. (See MUTCD Section 2D.33)

Arrows on Ground Mounted Signs

Type A Arrows on ground mounted exit direction signs should be centered horizontally under the message.

Support spacing

If the proposed support spacing is not standard for the given panel width, the proposed support spacing shall be added to the panel design note as well as on the design panel (centerlines with spacing).  For proposed signs erected on existing supports, the existing support spacing shall be added to the panel design.

EXIT ONLY panels

Exit only panels shall be designed per MUTCD SHS E11-1 Series signs as shown in the 2012 Supplement.  Add the following note to the panel design notes, updating sizes as necessary:

“Bottom panel shall be yellow Grade C sheeting.  Legend shall be direct applied black non-reflective sheeting.  Arrow shall be black non-reflective sheeting on 0.032" aluminum and demountable.  Yellow panel is XXX" X 36". (Border Type = Recessed, Recess = 0.5", Width = 1.5", Radii = 12")

Attachment Method and Mounting Method

Secondary and supplemental signs are either attached to the primary sign by additional “Z" bars or connected directly to the supports. For all secondary and supplemental sign designs, add a note specifying the attachment or mounting method as shown on the support chart. (Link to Standard Drawings​)

Aluminum Thickness see (Table 901-2) (include for all signs, milemarkers, overlays, etc..)

Additional Resource

Type A Overhead Panel Design Example (Link)

Type B Overhead Panel Design Example (Link)
Example Type D Panel Design

Applicable Standard Specifications

SECTION 901 SIGN FABRICATION
SECTION 903 GROUND MOUNTED SIGN SUPPORTS
SECTION 904 SIGN ERECTION

Applicable Standards

901.10 TYPE 'A' SIGNS
901.20 TYPE 'B' SIGNS
901.50 ARROWS AND SHIELDS
901.70 SIGN STRINGERS AND SUPPORT SPACING
904.20 SECONDARY SIGN MOUNTING
904.30 SUPPLEMENTAL SIGN MOUNTING