Traffic Control Devices and Measures for Deterring Wrong-Way Movements (2018) / Chapter Skim
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Pages 63-72
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From page 63... ...
B-1 the median width is measured. The first formal definition of median was incorporated into the 1961 MUTCD (Bureau of Public Roads 1961)
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B-2 In the 2009 MUTCD, the selection of proper wrong-way traffic control at divided highway intersections depends on whether the crossing is considered a single intersection or two separate intersections. Currently, median width is the only criterion used to make this decision.
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B-3 More recently, Khazraee and Hawkins (2015) examined the fundamental issues associated with the function of treating a divided highway crossing as one or two intersections.
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Source: FHWA. Figure B-2.
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B-5 Section 2B.40 notes that if KEEP RIGHT signs are used, they should be placed as close as possible to the ends of the median and should be visible to traffic on the divided highway and the crossroad. If ONE WAY signs are used, they must be placed on the near right and far left corners of the intersection and be visible to each crossroad approach.
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B-6 Wrong-Way Traffic Control at Interchange Ramps The 2009 MUTCD also contains information regarding wrong-way traffic control at interchange ramps in Section 2B.41. This section was first included in the 1978 MUTCD (FHWA 1978)
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B-7 In addition to signage, the following pavement markings may be used to deter wrong-way movements at interchange ramps: • Double solid yellow lines should be used as a centerline for an adequate distance on both sides of the crossroad approaching the intersection with the exit ramp. • Lane-use arrows in each lane of the exit ramp should be located near the intersection with the crossroad to indicate permissive direction of travel (see Figure B-6)
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B-8 Figure B-6. (Continued)
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B-9 References AASHTO.
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