Type 4 (End of Roadway) Object Markers: Black with Red Reflective Circles
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Type 4 (End of Roadway) Object Markers: Black with Red Reflective Circles

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  • Description
  • MUTCD Design Guidance
  • About Object Markers
  • Literature

MUTCD PART 2 - Chapter 2C

Warning Signs and Object Markers view pdf | view table 2C.2
Quick Reference: Sign Sizes for Roadway Type view chart


Type 4 (End of Roadway) Object Markers: Black with Red Reflective Circles

Type 4 Object Markers warn and alert road users of the end of a roadway.
  • PRODUCT ID: S(XXXX)OM42(X)A
  • Size (XXXX): (1818) 18" x 18" for use on all Roadways
  • Red Reflective (X):
    (H)
    High Intensity Prismatic
  • Substrate: .080" Aluminum
  • NOTE: Black is Non-Reflective.
  • MUTCD Sign Designation: OM4-2

MUTCD Section 2C.63.

Standard:

02 When used, object markers (see Figure 2C-13) shall not have a border and shall consist of an arrangement of one or more of the following types:

Type 1: a diamond-shaped sign, at least 18 inches on a side, consisting of either a yellow (OM1-1) or black (OM1-2) sign with nine yellow retroreflective devices, each with a minimum diameter of 3 inches, mounted symmetrically on the sign, or an all-yellow retroreflective sign (OM1-3).

Type 2: either a marker (OM2-1V or OM2-1H) consisting of three yellow retroreflective devices, each with a minimum diameter of 3 inches, arranged either horizontally or vertically on a white sign measuring at least 6 x 12 inches; or an all-yellow horizontal or vertical retroreflective sign (OM2-2V or OM2-2H), measuring at least 6 x 12 inches.

Type 3: a striped marker, 12 x 36 inches, consisting of a vertical rectangle with alternating black and retroreflective yellow stripes sloping downward at an angle of 45 degrees toward the side of the obstruction on which traffic is to pass. The minimum width of the yellow and black stripes shall be 3 inches.

Type 4: a diamond-shaped sign, at least 18 inches on a side, consisting of either a red (OM4-1) or black (OM4-2) sign with nine red retroreflective devices, each with a minimum diameter of 3 inches, mounted symmetrically on the sign, or an all-red retroreflective sign (OM4-3).


MUTCD Section 2C.66

Standard:

04 Where conditions warrant, more than one marker, or a larger marker with or without a Type 3 Barricade (Section 2B.67), may be used at the end of the roadway.


NOTE: Call 1-800-367-1492 to order larger sizes.

About Object Markers

The purpose of object markers is to mark obstructions located within or adjacent to the roadway including underpass piers, bridge abutments, handrails, ends of traffic barriers, utility poles, and culvert headwalls. Other roadside conditions, such as narrow shoulders, drop-offs, gores, small islands, and abrupt changes in the roadway alignment, that might make it undesirable for a road user to leave the roadways, also create a need for a marker. Refer to the MUTCD for more information.

  • Above Grade Clearance for Object Markers: 4 feet from the ground to the bottom of the object marker.
  • Type 1 Object Markers: Used to mark obstructions within the roadway.
  • Type 2 Object Markers: Used to mark obstructions adjacent to the roadway.
  • Type 3 Object Markers: Used to mark obstructions adjacent to or within the roadway.
  • Type 4 Object Markers: Used to warn and alert road users of the end of a roadway.

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