what is a curb extension
Curb extension is an umbrella term that encompasses several different treatments and applications. 1  Midblock curb extensions, known as pinchpoints or chokers, which may include cut-throughs for bicyclists. 2  Curb extensions used as gateways to minor streets known as neckdowns. Offset curb extensions that force vehicles to move laterally, known as chicanes. Curb extensions at bus (or transit) stops, also known as bus bulbs. Conventional curb extensions, which are a recommended feature where there is on-street parking.