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ISO 21542:2021 Building construction - Accessibility and usability of the built environment >
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ISO 21542:2021 Building construction - Accessibility and usability of the built environment, 2021
- Foreword
- Introduction
- 1 Scope
- 2 Normative references
- 3 Terms and definitions
- 4 General design considerations
- 4.1 General
- 4.2 Key accessibility issues
- 5 Orientation and information outside and inside of a building
- 5.1 Orientation and information
- 5.1.1 General
- 5.1.2 Levels of information
- 5.1.3 Principle of multiple senses
- 5.1.4 Tactile walking surface indicators – TWSI
- 5.2 Floor and wall surfaces
- 5.3 Visual contrast
- 5.3.1 General
- 5.3.2 Luminance contrast
- 5.3.3 Luminance contrast of glossy or shiny materials
- 5.3.4 Choice of colours and patterns
- 5.3.5 Relevant design factors
- 5.4 Lighting
- 5.4.1 General
- 5.4.2 External lighting
- 5.4.3 Lighting inside buildings
- 5.4.4 Lighting to facilitate wayfinding
- 5.4.5 Controllable and adjustable lighting
- 5.4.6 Light levels in different areas
- 5.4.7 Glare and shadows
- 5.5 Signage
- 5.5.1 General
- 5.5.2 Types of signs
- 5.5.3 Placement of signs
- 5.5.4 Height and location of signs
- 5.5.5 Font and size of lettering
- 5.5.6 Luminance contrast
- 5.5.7 Glare and illumination
- 5.5.8 Understandability
- 5.5.9 Provision of raised tactile and Braille signs
- 5.5.10 Tactile characters, figures, signs and graphical symbols
- 5.5.11 Braille
- 5.5.12 Tactile symbols
- 5.5.13 Tactile maps and floor plans
- 5.5.14 Information displays
- 5.6 Graphical symbols
- 5.7 Acoustics
- 5.7.1 General
- 5.7.2 Control of noise
- 5.7.3 Hearing enhancement
- 5.8 Emergency warning systems, signals and information
- 5.8.1 General
- 5.8.2 Emergency warnings
- 5.8.3 Audible emergency warnings
- 5.8.4 Visual emergency warning signals
- 5.8.5 Fire emergency warning systems
- 6 Approaching and entering a building or the built environment
- 6.1 General
- 6.2 Parking
- 6.2.1 Location of accessible parking spaces
- 6.2.2 Number of designated accessible parking spaces
- 6.2.3 Dimensional requirements for car parking spaces
- 6.2.4 Dimensional requirements for parking spaces for wheelchair accessible vans
- 6.2.5 Signage
- 6.2.6 Surface characteristics of accessible parking spaces
- 6.2.7 Kerb ramp from parking space to an adjacent higher pedestrian path
- 6.2.8 Accessible indoor parking spaces
- 6.2.9 Parking control
- 6.2.10 Storage spaces for powered wheelchairs, scooters and other mobility aids
- 6.2.11 Storage facilities for buggies and cycles
- 6.2.12 Drop-off areas
- 6.3 Paths to the building
- 6.3.1 General
- 6.3.2 Wayfinding, guided path and other physical information
- 6.3.3 Width of the path and passing and turning spaces for persons using a wheelchair
- 6.3.4 Stepped path and stairs
- 6.3.5 Landings of sloped paths
- 6.3.6 Handrail support and guidance on paths
- 6.3.7 Drainage of access and egress routes
- 6.3.8 Obstacles in a path
- 6.4 Ramps
- 6.4.1 General
- 6.4.2 Slope and length
- 6.4.3 Width of ramps
- 6.4.4 Landings of ramps
- 6.4.5 Handrail support and guidance by handrails on ramps
- 6.4.6 Drainage of ramps
- 6.4.7 Surface materials
- 6.5 Protection along paths and ramps
- 6.6 Building entrances and final fire exits
- 6.6.1 General
- 6.6.2 Thresholds at entrances and final fire exits
- 6.6.3 Circulation space at entrance doors and final fire exits
- 6.6.4 Space requirements between doors in series and in vestibules
- 7 Horizontal circulation in a building
- 7.1 Internal circulation routes and manoeuvring spaces
- 7.1.1 General
- 7.1.2 Internal circulation routes/corridors
- 7.1.3 Turning space for 90° turn of a wheelchair in corridors
- 7.1.4 Turning space for 180° wheelchair turn
- 7.2 Moving walks
- 8 Vertical circulation in a building
- 8.1 General
- 8.2 Ramps in buildings
- 8.3 Stairs
- 8.3.1 General
- 8.3.2 Rise and going of steps
- 8.3.3 Minimum width of stair flights
- 8.3.4 Staircase landings
- 8.3.5 Head clearance
- 8.3.6 Visual and tactile warnings
- 8.3.7 Handrails and guards along stairs
- 8.4 Handrails
- 8.4.1 General
- 8.4.2 Characteristics of a handrail
- 8.4.3 Continuity of a handrail
- 8.4.4 Height of a handrail
- 8.4.5 Horizontal extension of a handrail
- 8.4.6 Visual and tactile information
- 8.4.7 Mechanical resistance
- 8.5 Lifts
- 8.5.1 General
- 8.5.2 Approach and access to the lift
- 8.5.3 Lift car entrance — Door opening
- 8.5.4 Entrance width and inner dimensions of cars
- 8.5.5 Equipment in the car
- 8.5.6 Stopping/Levelling accuracy
- 8.5.7 Control devices and signals
- 8.5.8 Lifts used for evacuation
- 8.6 Vertical and inclined lifting platforms
- 8.7 Escalators and moving walks
- 9 Components of a building and building equipment
- 9.1 Doorsets and windows
- 9.1.1 Doors and door furniture
- 9.1.2 Fire-resisting doorsets
- 9.1.3 Windows and window furniture
- 9.2 Equipment, controls and switches
- 9.2.1 General
- 9.2.2 Location, heights and distances
- 9.2.3 Operation
- 9.2.4 Identification
- 9.2.5 Usability and consistency in design
- 9.2.6 Intercoms and telephones
- 9.2.7 Card and vending machines
- 9.2.8 Security access systems
- 9.2.9 Drinking fountains
- 9.2.10 Waste disposals and containers
- 9.3 Furnishing
- 9.3.1 General
- 9.3.2 Seating in waiting areas
- 9.3.3 Seating at desks or tables
- 10 Rooms and spaces within non-domestic buildings
- 10.1 Reception areas, counters, desks and ticket offices
- 10.1.1 General
- 10.1.2 Space to manoeuvre
- 10.1.3 Height
- 10.1.4 Lighting
- 10.1.5 Hearing and lipreading
- 10.1.6 Ticket systems
- 10.2 Cloakroom
- 10.3 Conference rooms and meeting rooms
- 10.4 Auditoriums, concert halls, sports arenas, viewing spaces in assembly areas and similar
- 10.4.1 General
- 10.4.2 Hearing enhancement systems
- 10.4.3 Lighting for sign language interpretation
- 10.4.4 Designated seating spaces for persons using a wheelchair
- 10.4.5 Lines of sight over seated and standing spectators
- 10.4.6 Row and seat numbers
- 10.4.7 Access to stage and backstage
- 10.5 Toilet rooms, sanitary rooms and bathrooms
- 10.5.1 General
- 10.5.2 WC compartments for ambulant persons with disabilities
- 10.5.3 Dimensions for wheelchair accessible toilet rooms
- 10.5.4 Toilet room doors
- 10.5.5 Toilet seat
- 10.5.6 Grab rails
- 10.5.7 Toilet paper dispensers
- 10.5.8 Washbasin
- 10.5.9 Water supply
- 10.5.10 Taps
- 10.5.11 Urinals
- 10.5.12 Other fittings
- 10.5.13 Assistance alarm
- 10.5.14 Fire emergency warning devices
- 10.5.15 Showers
- 10.5.16 Bathrooms
- 10.6 Accessible bedrooms
- 10.7 Accessible changing rooms
- 10.8 Kitchen areas
- 10.9 Storage areas
- 10.10 Terraces, verandas and balconies
- 10.11 Bars, pubs and restaurants
- 10.12 Facilities for guide and other assistance dogs
- 10.12.1 General
- 10.12.2 Relief facilities for guide and assistance dogs
- 11 Fire safety and evacuation
- 11.1 General
- 11.2 Design objectives
- 11.3 Principles of fire evacuation
- 11.4 Emergency evacuation related building infrastructure
- 11.4.1 Overview on essential building infrastructure
- 11.4.2 Emergency evacuation routes
- 11.4.3 Places of relative safety
- 11.4.4 Lift evacuation systems
- 11.4.5 Areas of rescue assistance adjoining fire evacuation staircases
- 11.4.6 Fire evacuation staircases
- 11.4.7 Floors of temporary refuge
- 11.4.8 Final fire exit doors and fire-resisting doors
- 11.4.9 Fire safety plans
- 12 Management and maintenance issues
- Annex A (informative) Housing
- Annex B (informative) Tactile walking surface indicators (TWSI)
- Annex C (informative) Circulation spaces at doorways
- Annex D (informative) Fire prevention, protection, safety and evacuation for all
- Annex E (informative) Methods for the determination of the luminance contrast
- Annex F (informative) Management and maintenance issues
- Annex G (informative) Human abilities and associated design considerations
- Bibliography [Go to Page]