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Glossary

Terms used in accessibility research and practice. Each entry has a definition, common aliases, and category tags.

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Accessible Tourism(also: Inclusive Tourism, Tourism for All)
The practice of ensuring that tourism destinations, products, and services are accessible to all people regardless of their physical, sensory, or cognitive abilities. Accessible tourism encompasses the entire travel chain — from trip planning and booking through transport,…
Accessible Transit(also: Accessible Public Transportation, Transit Accessibility)
The design and provision of public transportation systems — including buses, trains, subways, and associated infrastructure — that are usable by people with disabilities. Accessible transit encompasses physical accessibility (low-floor buses, ramp access, tactile platform…
Accessible Transportation(also: Inclusive Transportation, Transportation Accessibility)
Transportation systems, vehicles, infrastructure, and services designed to be usable by people with disabilities, including those with mobility, vision, hearing, and cognitive impairments. Accessible transportation encompasses physical features (wheelchair ramps, tactile paving,…
Autonomous Vehicle(also: AV, Self-Driving Car, Automated Driving System)
A vehicle equipped with technology that enables it to navigate and operate without human input, ranging from partial automation features like adaptive cruise control to fully autonomous systems that handle all driving tasks. Autonomous vehicles represent a potentially…
Driving Cessation(also: Driving Retirement, Giving Up Driving)
The process by which a person stops driving a motor vehicle, either voluntarily or due to age-related decline in cognitive, visual, or physical abilities, medical conditions, or legal restrictions. Driving cessation disproportionately affects older adults and has significant…
Geofencing(also: Geo-Fencing, Virtual Boundary)
Geofencing is a technology that creates virtual geographic boundaries using GPS, RFID, or other location-based data to trigger actions when a device enters or exits a defined area. In accessibility contexts, geofencing can be used to designate low-speed zones for micromobility…
Micromobility(also: Shared Micromobility, Micro-Mobility)
Micromobility refers to small-scale, lightweight, networked transportation vehicles used to travel short distances, typically weighing under 500 kg and traveling at low to moderate speeds. Examples include e-scooters, dockless bicycles, electric bikes, and seated scooters…
Personal Delivery Device(also: PDD, Delivery Robot, Autonomous Delivery Robot)
Personal delivery devices (PDDs) are small autonomous or semi-autonomous robots that travel on sidewalks and pedestrian pathways to deliver food, packages, and other goods. These devices have been granted pedestrian status under traffic code in several US states, giving them the…
Step-Free Access(also: Level Access, Barrier-Free Access)
A route or entrance to a building, transport station, or public space that does not require the use of steps or stairs, enabling access for wheelchair users, people with mobility impairments, parents with pushchairs, and travellers with heavy luggage. In transport contexts,…
Travel Chain(also: Mobility Chain, Journey Chain)
A travel chain is the complete sequence of connected stages that make up a journey from origin to destination, including planning, leaving the starting point, walking to transport, using public transport, navigating outdoor environments, entering buildings, and finding specific…

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