
Curb Extensions - NACTO - National Association of City …
Curb extensions visually and physically narrow the roadway, creating safer and shorter crossings for pedestrians while increasing the available space for street furniture, benches, plantings, and street trees. They may be implemented on downtown, neighborhood, and …
Curb extension - Wikipedia
A curb extension (or also neckdown, kerb extension, bulb-out, bump-out, kerb build-out, nib, elephant ear, curb bulge, curb bulb, or blister) is a traffic calming measure which widens the sidewalk for a short distance. This reduces the crossing distance and allows pedestrians and drivers to see each other when parked vehicles would otherwise ...
Curb Extensions (Bulb-outs) - SF Better Streets
Bulb-outs should be designed to maximize pedestrian space and minimize crossing distances as much as feasible, while allowing vehicle movements as described in the curb radius guidelines. Bulb-out width should be maximized based on space for …
Bulb-outs - SFMTA
By increasing the space available for pedestrians and narrowing the roadway at key points, bulb-outs create safer conditions for pedestrians by shortening crossing distances, improving visibility, and encouraging drivers to slow down—whether traveling straight or turning.
Bus Bulbs - NACTO
Bus bulbs are curb extensions that align the bus stop with the parking lane, allowing buses to stop and board passengers without ever leaving the travel lane. Bus bulbs help buses move faster and more reliably by decreasing the amount of time lost when merging in and out of traffic.
Bulb-outs significantly improve pedestrian crossings by reducing the pedestrian crossing distance, visually and physically narrowing the roadway, improving the ability of pedestrians and motorists to see each other, reducing the time that pedestrians are in the street, and allowing space for the installation of ADA-compliant pedestrian ramps.
Curb Extensions/Bulb Outs/Neck Downs – A Block at a Time - abaat
Definition: Bulb outs, also referred to as curb extensions, narrow the roadway at the corners of an intersection by extending the curb into the parking lane or shoulder. Bulb outs narrow the width of the road which can reduce motorists’ speeds as they …
Horizontal Displacement: Bulb-Outs, Neck-Downs, Mid-Block …
Neck-downs, bulb-outs, chokers, and mid-block crossings are physical devices placed in the roadway to create horizontal deflections by narrowing points along the roadway. Drivers are forced to slow to negotiate the narrowed points on the roadway.
Pedestrian Safety Guide and Countermeasure Selection System
Curb extensions—also known as bulb-outs or neckdowns—extend the sidewalk or curb line out into the parking lane and reduce the effective street width. Curb extensions must not extend into travel lanes and should not extend across bicycle lanes.
Do Curb Bumpouts Really Keep Pedestrians Safe?
2020年10月29日 · Bumpouts are also known as curb extensions, bulb-outs, or neckdowns. Bumpouts extend the curb into the street on both sides of the street at a pedestrian crossing, effectively making the pedestrian crossing shorter. Bumpouts keep pedestrians safer in …