AAA: American Automobile Association.
ADA: Americans with Disabilities Act.
ADAAG: Americans with Disabilities Act Accessibility Guidelines.
ADOT: Arizona Department of Transportation.
Accessible: In this document, to provide equal use of the built environment for all people.
Activity Generator: A land use or activity that draws pedestrians or from which pedestrians initiate or terminate their trips.
Arterial Street: A busy main street with high volumes of traffic and high speeds, usually with limited or no street side parking.
AASHTO: American Association of State Highway and Transportation Officials.
Average Daily T Traffic raffic (ADT): The quantity of vehicles that use or pass through a defined area during the time of one day.
Bicycle Lane: A portion of the roadway which has been designated by striping, signing, and pavement marking for the preferential or exclusive use of bicyclists.
Buffer: A form of visual, auditory, or land use separation through the use of structures (suchas walls) or landscape materials.
Bollard: One of a series of objects preventing vehicles from entering an area.
Buffer Effect: The absorption of, or deadening effect on, auditory or visual intrusions, or an effect that causes pedestrians to shy away from the curb, building walls, window shoppers, and street furniture, which must be accounted for in the design width of a walkway.
CPTED: Crime Prevention Through Environmental Design. CPTED is a recognized set of design principles that can result in an environment being safer and more secure for pedestrians.
Chicane: A traffic calming technique where physical obstacles or barriers are placed in the street which requires drivers to slow down and drive around them.
Choker: Curb extensions at midblock or intersection corners that narrow a street by extending the sidewalk or widening the planting strip. They can leave the cross section with two narrow lanes or with a single lane.
Curb: A vertical edge, designed to deflect vehicular traffic, usually six inches in height.
