See Signal Backplate. MUTCD 2009 Edition with May 2012 Revisions 1 and 2

A portable device having one to three horizontal reflective rails with appropriate markings, used to control traffic by closing, restricting, delineating or channelizing all or a portion of the highway.

A preferential lane or other special purpose lane that is separated from the adjacent general-purpose lane(s) by a physical barrier. MUTCD 2009 Edition with May 2012 Revisions 1 and 2

A highway traffic signal with one or more signal sections that operates in a flashing mode. MUTCD 2009 Edition with May 2012 Revisions 1 and 2

A yellow rotating flashing light or strobe light mounted on a vehicle.

A pedal-powered vehicle upon which the human operator sits. MUTCD 2009 Edition with May 2012 Revisions 1 and 2

A general term denoting improvements and provisions that accommodate or encourage bicycling, including parking and storage facilities, and shared roadways not specifically defined for bicycle use. MUTCD 2009 Edition with May 2012 Revisions 1 and 2

A portion of a roadway that has been designated for preferential or exclusive use by bicyclists by pavement markings and, if used, signs. MUTCD 2009 Edition with May 2012 Revisions 1 and 2

A generic term for any road, street, path, or way that in some manner is specifically designated for bicycle travel, regardless of whether such facilities are designated for the exclusive use of bicycles or are to be shared with other transportation modes. MUTCD 2009 Edition with May 2012 Revisions 1 and 2

A traffic control vehicle used to control the speed of following traffic in a rolling slowdown. A blockade vehicle is made highly visible with high-intensity rotating, flashing, oscillating, or strobe lights, an arrow board and sign or PCMS.