Page:Manual on Uniform Traffic Control Devices for Streets and Highways, 11th Edition (December 2023).pdf/54

Page 14 :'''11. Annual Average Daily Traffic (AADT)—the total volume of traffic passing a point or segment of a highway facility in both directions for one year divided by the number of days in the year. Normally, periodic daily traffic volumes are adjusted for hours of the day counted, days of the week, and seasons of the year to arrive at annual average daily traffic.'''
 * 12. Application—in regard to a traffic control device, the act of deciding to use a device, generally or at a particular location for a particular condition.
 * 13. Approach—all lanes of traffic moving toward an intersection or a midblock location from one direction, including any adjacent parking lane(s).
 * 14. Arterial Highway (Street)—a general term denoting a highway primarily used by through traffic, usually on a continuous route or a highway designated as part of an arterial system.
 * 15. Automated Vehicle—see Driving Automation System.
 * 16. Automatic Lane—see Exact Change Lane within the definition of Toll Collection.
 * 17. Average Daily Traffic (ADT)—the average 24 hour volume, being the total volume during a stated period divided by the number of days in that period. Normally, this would be periodic daily traffic volumes over several days, not adjusted for days of the week or seasons of the year.
 * 18. Average Day—a day representing traffic volumes normally and repeatedly found at a location, typically a weekday when volumes are influenced by employment or a weekend day when volumes are influenced by entertainment or recreation.
 * 19. Backplate—see Signal Backplate.
 * 20. Barrier-Separated Lane—a preferential lane or other special purpose lane that is separated from the adjacent general-purpose lane(s) by a physical barrier.
 * 21. Beacon—a highway traffic signal with one or more signal indications that operates in a flashing mode. Types of beacons include:
 * (a) Emergency-Vehicle Hybrid Beacon—a special type of beacon (see Hybrid Beacon).
 * (b) Intersection Control Beacon—a beacon used only at an intersection to control two or more directions of travel.
 * (c) Pedestrian Hybrid Beacon—a special type of beacon (see Hybrid Beacon).
 * (d) Rectangular Rapid-Flashing Beacon (RRFB)—a pedestrian-activated and/or bicycleactivated device comprising two horizontally arranged, rapidly flashed, rectangular-shaped yellow indications that is used to provide supplemental emphasis for a pedestrian, school, or trail crossing warning sign at a marked crosswalk across an uncontrolled approach.
 * (e) Speed Limit Sign Beacon—a beacon used only to supplement a SPEED LIMIT sign.
 * (f) Stop Beacon—a beacon used only to supplement a STOP sign, a DO NOT ENTER sign, or a WRONG WAY sign.
 * (g) Warning Beacon—a beacon used only to supplement an appropriate warning or regulatory sign or marker.
 * 22. Bicycle—a pedal-powered vehicle upon which the human operator sits.
 * 23. Bicycle Box—a designated area on the approach to a signalized intersection, between an advance motorist stop line and the crosswalk or intersection, intended to provide bicyclists a visible place to wait in front of stopped motorists during the red signal phase.
 * 24. Bicycle Facilities—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.
 * 25. Bicycle Lane—a portion of a roadway that has been designated for preferential or exclusive use by bicyclists. A typical bicycle lane is delineated from the adjacent general-purpose lane(s) by longitudinal pavement markings and bicycle lane symbol or word markings and, if used, signs. Other types of bicycle lanes include:
 * (a) Buffer-Separated Bicycle Lane—a bicycle lane that is separated from the adjacent generalpurpose lane(s) by a pattern of standard longitudinal pavement markings that is wider than a normal or wide lane line marking.
 * (b) Counter-Flow Bicycle Lane—a one-directional bicycle lane that provides a lawful path of travel for bicycles in the opposite direction from general traffic on a roadway that allows general traffic to travel in only one direction. Counter-flow bicycle lanes are designated by the traffic control devices used for other bicycle lanes.
 * (c) Separated Bicycle Lane—an exclusive facility for bicyclists that is located within or directly adjacent to the roadway and that is physically separated from motor vehicle traffic with a vertical element. Separated bicycle lanes are differentiated from other bicycle lanes by a vertical element. Sect. 1C.02