An interchange with another freeway or expressway, or an interchange with a high-volume multi-lane highway, principal urban arterial, or major rural route where the interchanging traffic is heavy or includes many road users unfamiliar with the area. MUTCD 2009 Edition with May 2012 Revisions 1 and 2

The street normally carrying the higher volume of vehicular traffic. MUTCD 2009 Edition with May 2012 Revisions 1 and 2

Same as Conflict Monitor. MUTCD 2009 Edition with May 2012 Revisions 1 and 2

A highway lane or set of lanes, or a highway facility, for which variable operational strategies such as direction of travel, tolling, pricing, and/or vehicle type or occupancy requirements are implemented and managed in real-time in response to changing conditions. Managed lanes are typically buffer- or barrier-separated lanes parallel to the general-purpose lanes of a highway in which access is restricted to designated locations. There are also some highways on which all lanes are managed. MUTCD 2009 Edition with May 2012 Revisions 1 and 2

See Attended Lane. MUTCD 2009 Edition with May 2012 Revisions 1 and 2

The maximum amount of time needed following initiation of the preemption sequence for the highway traffic signals to complete the timing of the right-of-way transfer time, queue clearance time, and separation time. MUTCD 2009 Edition with May 2012 Revisions 1 and 2

The area between two roadways of a divided highway measured from edge of traveled way to edge of traveled way. The median excludes turn lanes. The median width might be different between intersections, interchanges, and at opposite approaches of the same intersection. MUTCD 2009 Edition with May 2012 Revisions 1 and 2

Process in which a rotating drum, equipped with special working tools, cuts the pavement to a predetermined depth and reduces the cuttings to a minimum size in the process. Also called cold planing [Webster 1995: p. 125].