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Extension <br /> <br />Description: <br />Segments of roadway narrowing <br />where roadway edges or curbs are <br />extended toward the center of the <br />roadway <br /> <br />Application: <br /> · Typically used adjacent to <br /> intersections where parking <br /> is restricted <br /> · Can be used to narrow roadway <br /> and shorten pedesthan crossings <br /> <br />Advantages: · Pedestrian visibility increased and crossing distance reduced <br /> <br /> · Narrowed roadway section may contribute to vehicular speed reduction <br /> · Can "reclaim" pavement for pedestrian and streetscape amenities <br /> · Breaks up drivers' line-of-sight <br /> <br />Disadvantages: · Creates drainage issues where curb and gutter exist <br /> · Creates physical obstruction in the travel way <br /> May create hazard for bicyclists <br /> · Will require removal of parking <br /> <br /> Variations: <br /> · Mid-block neckdowns often used <br /> in conjunction with pedestrian <br /> crossing treatments <br /> <br /> Special Considerations: <br /> · Curb extensions should not <br /> extend into bicycle lanes where <br /> present <br /> <br /> Cost: .._.I I <br /> <br /> ~, Medium to high cost depending <br /> on landscaping, pavement treatments <br /> and storm drainage considerations <br /> <br /> <br />