Raised Median
Reduced Left-Turn Conflict Intersection
INTERSECTIONS & ROADWAYS INTERSECTIONS & ROADWAYS
Raised Median
Curbed sections in the center of the roadway that are physically separated from vehicular traffic . Raised medians can also help control access to and from side streets and driveways , reducing conflict points .
Cost $$
Low Cost / Quick Build alternative available
Reduced Left-Turn Conflict Intersection
Geometric designs that alter how left-turn movements occur can simplify decisions and minimize the potential for left-turn related crashes . Two designs that rely on U-turns to complete certain left-turn movements are known as the restricted crossing U-turn ( RCUT ) and the median U-turn ( MUT ). Both designs require some out of direction travel for vehicles .
Cost $$$
Relevant Crash Types Run Off Road Left Turns at Unsignalized Intersections Angled Crashes at Unsignalized Intersections Sideswipes Speed Management
Safe System Hierarchy |
Tier 1 |
Tier 2 |
Tier 3 |
Tier 4 |
Remove Severe Conflicts |
Reduce Vehicle Speeds |
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Relevant Crash Types Left Turns at Signalized Intersections
Safe System Hierarchy |
Tier 1 |
Tier 2 |
Tier 3 |
Tier 4 |
Remove Severe Conflicts |
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APPENDIX B : COUNTERMEASURES TOOLBOX B-17