Page 22 - Dubai Universal Design Code

8. Functional limitations

Functional limitations are restrictions in performing fundamental physical and mental
actions used in daily life such as mobility (physical) or memory (mental).

9. Gangway

An inclined solid structure to connect a building or a vessel with a berth, with handrails
at each side.

10. Handrail

Component of a stair or of a ramp or other building component that provides guidance,
balance and support.

11. Headroom

Clear vertical space above one’s head, as in a vehicle or room.

12. Interaction space

The interaction space is the space required by a person to interact with another person,
furniture, appliance, machine or another item.

13. Kneeling

When a vehicle is lowered at a boarding/disembarking location to reduce the vertical
gap between the entry/exit point to the vehicle and the boarding platform or ground
level.

14. Landing

Platform or part of a floor structure at the end of a flight of stairs or a ramp or at the
entrance to a car lift.

15. Light Reflectance Value (LRV)

The proportion of visible light reflected by a surface at all wavelengths and directions
when illuminated by a light source. LRV is also known as the luminance reflectance
factor. The LRV is expressed on a scale of 0 to 100, with a value of 0 for pure black and
a value of 100 for pure white.

16. Luminance

The amount of light emitted from a surface or source in any given direction.

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