Delineator and Object Marker Application and Spacing (Texas MUTCD, Section 3F.04)
Table 8-1 indicates the various uses for delineators for different types of roadways and roadway situations.
DELINEATOR AND OBJECT MARKER APPLICATION AND SPACING | ||
|---|---|---|
Condition | Required Treatment | Minimum Spacing |
Frwy./Exp. Tangent | RPMs | See PM-series and FPM-series standard sheets |
Frwy./Exp. Curve 1 | Single delineators on right side | See Tables 8-3 and 8-4 |
Frwy./Exp. Ramp | Single delineators on at least one side of ramp (should be on outside of curves) (see Fig.8-22) | 100 feet on ramp tangents. Use Tables 8-3 and 8-4 for ramp curves (“straightaway spacing” does not apply to ramp curves) |
Acceleration/Deceleration Lane | Double delineators (see Fig. 8-22) | 100 feet (see Fig. 8-22) |
Truck Escape Ramp | Single red delineators on both sides | 50 feet |
Bridge Rail (steel or concrete) and Metal Beam Guard Fence | Bi-directional delineators when undivided with one lane each direction Single delineators when multiple lanes each direction | Equal spacing (100’ max) but not less than 3 delineators |
Guard Rail Terminus/Impact Head | Divided highway-Object marker on approach end Undivided 2-lane highways - Object Marker on approach and departure end | Requires Type 3 Object Marker or reflective sheeting provided by manufacturer |
Bridges with no Approach Rail | Type 3 Object Marker at end of rail and 3 single delineators approaching rail | See Fig. 8-18 |
Reduced Width Approaches to Bridge Rail | Type 2 Object Markers and 3 single delineators approaching bridge | See Fig. 8-17 |
Culverts without MBGF | Type 2 Object Markers | See Fig. 8-21 |
Crossovers | Double yellow delineators or RPMs | See Figures 8-11 and 8-12 |
Pavement Narrowing (lane merge) on Freeways/Expressway | Single delineators adjacent to affected lane for full length of transition | 100 feet |
1
Delineators are not required in urban areas with continuous lighting.