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>> Curb extensions should be proposed on snow emergency routes after consultation with BTD and PWD. >> In order to move traffic more efficiently, curb extensions should not be installed on arterials with peak hour parking restrictions. >> When curb extensions conflict with turning movements, the width and/or length should be reduced rather than eliminating the extension wherever possible. >> Emergency access is often improved through the use of curb extensions as intersections are kept clear of parked cars. >> Curb extension installation may require the relocation of existing storm drainage inlets and above ground utilities. They may also impact underground utilities, parking, delivery access, garbage removal, snow plows, and street sweepers. These impacts should be evaluated when considering whether to install a curb extension. >> Curb extensions at bus stops are called “bus bulbs.” See Transit Accommodations later in this chapter for more information.
4 INTERSECTIONS
A typical curb extension is about 6’ wide, or approximately the width of a parked car.
3 1
6’ p. Ty
5 5’ n. Mi to 1’
2
2’
4 6
BOSTON TRANSPORTATION DEPARTMENT
2013
BOSTON COMPLETE STREETS GUIDELINES
163