Joystick: A device consisting of a lever that allows a pointer to move up, right, left, or down and serves as an alternative to a mouse. It usually includes buttons to enable mouse clicks.

Keyboard emulation: A method of having an alternative device and/or software, such as a switch-based system, serve the role of a keyboard.

Keyguard: A plastic or metal shield that covers a keyboard with holes over the keys. It allows use of a keyboard without undesired activation of surrounding keys.

Land management agency: Includes any agency or private organization that manages recreation and/or wilderness areas. Examples of land management agencies include: national entities such as the USDA Forest Service, the USDI Bureau of Land Management, and the USDI National Park Service, as well as State and local park systems.

Landing: A level area of the sidewalk at the top of a curb ramp that faces the ramp path.

Large print books: Most ordinary print is six to ten points in height (about 1/16 to 1/8 of an inch). Large type is 14 to 18 points (about 1/8 to 1/4 of an inch) and sometimes larger. The format of large print books is also proportionately larger (usually 8 1/ x 11 inches).

Level of Service (LOS): Qualitative and quantitative measurements of the physical environment for the comfort and efficiency of a mode of travel for pedestrians, bicyclists, or motorists. LOS ratings are A-F, similar to school grading systems. A rating of A (LOS) for one mode may be F for another mode. Balance is needed in order to have a transportation facility that is safe and amenable to all the users.

Local road: A road that serves individual residences or businesses and/or distributes traffic within a given urban or rural area.

Long white cane: Navigational device used by people with vision impairments to scan the environment for potential obstacles and hazards.

Low vision, a person with: a better term for visual impairment.

Lynx: Text-based World Wide Web browser.

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