The following words and terms, when used in this chapter, have the following meanings, unless the context clearly indicates otherwise:
ADT-Average daily traffic-The total volume of traffic during a number of whole days-more than 1 day and less than 1 year-divided by the number of days in that period.
Active work zone-The portion of a work zone where construction, maintenance or utility workers are on the roadway or on the shoulder of the highway, and workers are adjacent to an active travel lane. Workers are not considered adjacent to an open travel lane if they are protected by a traffic barrier and no ingress or egress to the work zone exists through an opening in the traffic barrier.
Advisory speed-The recommended speed for vehicles operating on a section of highway based on the highway design, operating characteristics and conditions. When posted, the speed is displayed as a warning sign; that is, either a black-on-yellow or a black-on-orange sign.
Angle parking-Parking, other than parallel parking, which is designed and designated so that the longitudinal axis of the vehicle is not parallel with the edge of the roadway.
Assemblage-
Bureau-The Bureau of Highway Safety and Traffic Engineering, which is the office of the Department responsible for traffic regulations and statewide policies regarding traffic-control devices.
City of the first and second class-A city so classified in accordance with section 1 the act of June 25, 1895 (P. L. 275, No. 188) (53 P. S. § 101), known as the City Classification Law.
Conventional highway-A highway other than an expressway or a freeway.
Corner sight distance-
Crash-
Department-The Department of Transportation of the Commonwealth.
Delineator-A retroreflective device mounted on the road surface or at the side of the roadway in a series to indicate the alignment of the roadway, especially at night or in adverse weather.
Divided highway-A highway divided into two or more roadways and so constructed as to impede vehicular traffic between the roadways by providing an intervening space, physical barrier or clearly indicated dividing section.
85th percentile speed-The speed on a roadway at or below which 85% of the motor vehicles travel.
Engineering and traffic study-An orderly examination or analysis of physical features and traffic conditions on or along a highway, conducted in accordance with this chapter for the purpose of ascertaining the need or lack of need of specific traffic restrictions, and the application of traffic-control devices.
Expressway-A divided arterial highway for through traffic with partial control of access and generally with grade separations at major intersections.
Freeway-A limited access highway to which the only means of ingress and egress is by interchange ramps.
Grade-The up or down slope in the longitudinal direction of the highway, expressed in percent, which is the number of units of change in elevation per 100 units of horizontal distance. An upward slope is a positive grade; a downward slope is a negative grade.
Highway-
Local authorities-
MUTCD-The current edition of the Manual on Uniform Traffic Control Devices, as adopted by the Federal Highway Administration (FHWA), and available on the FHWA website.
Narrow bridge or underpass-A bridge, culvert or underpass with a two-way roadway clearance width of 16 to 18 feet, or any bridge, culvert or underpass having a roadway clearance less than the width of the approach travel lanes.
Night or nighttime-The time from 1/2 hour after sunset to 1/2 hour before sunrise.
Normal speed limit-The regulatory speed limit or the 85th percentile speed that existed before temporary traffic control was established, for example, prior to the beginning of a work zone.
Numbered traffic route-A highway that has been assigned an Interstate, United States or Pennsylvania route number, consisting of one, two, or three digits, sometimes with an additional designation such as business route, truck route or other similar designation.
Private parking lot-A privately owned parking lot open to the public for parking with or without restriction or charge.
Procession-
Retroreflective sheeting-
Roadway-That portion of a highway improved, designed or ordinarily used for vehicular travel, exclusive of the sidewalk, berm or shoulder. If a highway includes two or more separate roadways, the term refers to each roadway separately but not to all roadways collectively.
Safe-running speed-The average speed for a portion of highway determined by making a minimum of five test runs while periodically recording the speed at different locations while driving at a speed which is reasonable and prudent, giving consideration to the available corner and stopping sight distance, spacing of intersections, roadside development and other conditions.
Sales Store-The Department facility that sells maps and publications.
School-A public, private or parochial facility for the education of students in grades kindergarten through 12.
School zone-A portion of a highway that at least partially abuts a school property or extends beyond the school property line that is used by students to walk to or from school or to or from a school bus pick-up or drop-off location at a school.
Secretary-The Secretary of the Department.
Special activity-
State-designated highway-A highway or bridge on the system of highways and bridges over which the Department has assumed or has been legislatively given jurisdiction.
Stopping sight distance-The length of highway over which a 2-foot high object on the roadway is continuously visible to the driver, with the driver's eye height assumed to be 3.5 feet above the road surface.
TTC-Temporary traffic control-An area of a highway where road user conditions are changed because of a work zone or incident by use of temporary traffic-control devices, flaggers, police officers or other authorized personnel.
TTC plan-A plan for maintaining traffic through or around a work zone.
Through highway-
Traffic calming-The combination of primarily physical measures taken to reduce the negative effects of motor vehicle use, alter driver behavior and improve conditions for nonmotorized street users. The primary objectives of traffic calming measures are to reduce speeding and to reduce the volume of cut-through traffic on neighborhood streets.
Traffic-control devices-Signs, signals, markings and devices consistent with this chapter placed or erected by authority of a public body or official having jurisdiction, for the purpose of regulating, warning or guiding traffic.
Traffic restriction-A restriction designated by a traffic-control device to regulate the speed, direction, movement, placement or kind of traffic using any highway.
Traffic signal-
Travel lane-
Warrant-A description of the threshold conditions to be used in evaluating the potential safety and operational benefits of traffic-control devices based upon average or normal conditions.
Work zone-The area of a highway where construction, maintenance or utility work activities are being conducted, and in which traffic-control devices are required in accordance with this chapter.
67 Pa. Code § 212.1
This section cited in 67 Pa. Code § 212.114 (relating to stopping, standing and parking restrictions); and 67 Pa. Code § 212.202 (relating to no-passing zones).