Speed Tables and Raised Crosswalks Source: Google Earth, Lexington, KY DEFINITION AND DESCRIPTION A speed table is a raised area installed across the roadway to limit vehicle speeds. It extends across the roadway and has a flat top sufficiently long (typically, 10...
Raised Intersections Image Source: NACTO DEFINITION AND DESCRIPTION A raised intersection functions like a speed table but extends across the full width of the intersection.. Ramps are installed on each approach, and the intersection elevation is flush with the...
Curb Extensions Image Source: Google Earth, Paducah DEFINITION AND DESCRIPTION A curb extension is a horizontal extension of the sidewalk into the street that results in a narrower roadway section. They may be placed at intersection corners or mid-block. A curb...
Rectangular Rapid Flashing Beacon (RRFB) DEFINITION AND DESCRIPTION Rectangular Rapid Flashing Beacons (RRFBs) are used to provide emphasis to warning signs at marked crosswalks across uncontrolled approaches. RRFBs consist of two rectangular-shaped yellow...
Protected Intersection Image Source: FHWA DEFINITION AND DESCRIPTION Protected intersections use a setback or offset design to minimize conflict points and improve visibility between drivers, pedestrians, and/or bicyclists. Features of protected intersections include...
Median and Pedestrian Refuge Islands Image Source: Google Earth, Beaumont Centre Circle, Lexington, KY DEFINITION AND DESCRIPTION A median is the area between opposing lanes of traffic, excluding turn lanes. Medians in urban and suburban areas can be created using...
