7 Circulation PDF version
7.1 Accessible Routes, Paths or Corridors
A barrier-free path of travel should be provided throughout all facilities. Although the minimum acceptable width is 1060 mm, wider routes allow for easier circulation.
The minimum clear width of every barrier-free route shall provide an unobstructed width of at least 1060 mm (OBC 188.8.131.52.(1)), (Figure 7.1) except
7.1.1 Turnstiles cannot be used by persons in wheelchairs and can be hazardous to ambulant persons who use crutches or canes. Where turnstiles, controlled checkout lanes, or other restricted passageways are constructed to control the flow of pedestrian traffic, at least one route shall be no less than 920 mm wide should be provided beside a turnstile. It is recommended that turnstiles not be used. (See Figure 7.3)
The minimum width recommended for checkout lanes is 920 mm. (See Figure 7.4)
7.1.2 Route Slopes
Long paths of travel should be avoided, and resting areas should be provided at frequent intervals (approximately 30 m).
The minimum clear opening of doorways shall be 810 mm measured between the face of the door and the stop with the door open 90o (OBC 184.108.40.206.(1b)). (See Figure 7.5) In existing buildings, swing-clear hinges can be used to increase the clear opening without changing the frame (See Figure 7.5).
7.2.1 If doorways have two independently operated door leaves, at least one active leaf shall comply with clear width and manoeuvring space requirements. Both doors shall be kept operational and unlocked.
7.2.2 The minimum space between two hinged or pivoted doors in series shall be 1200 mm plus the width of any door swinging into the space. (OBC 220.127.116.11.(11) (See Figure 7.6)
7.3 Manoeuvring Space
Doorways shall have wheelchair manoeuvring space on both sides of the door, and a clear space beside the latch as described in the table below, except where access is only required from one side, such as to a closet. (OBC 18.104.22.168.(10)) (See Figure 7.7.)
Where a door leads to a ramp landing, additional space may be required. (See Section 8 Ramps.)
Where possible, raised thresholds should be avoided. They are a hazard to ambulant persons with disabilities and a particular inconvenience to persons in wheelchairs.
7.5 Door Hardware
Knob handles do not provide for an adequate grip by persons with impaired hand functions. Lever handles should be used on latched doors. U-shaped door handles (Figure 7.8) reduce the risk of catching clothing on or injury from the exposed lever end. Push-pull mechanisms which do not require grasping are also easy to use.
Kickplates 250 mm high on doors should be considered in high use areas to protect the push side of doors from damage caused by wheelchair footrests and to make it easier for persons in wheelchairs to open doors.
Operating devices such as handles, pulls, latches and locks shall
Operating hardware on sliding doors shall be exposed and usable from both sides when sliding doors are fully open. If the door retracts fully into a wall pocket, an accessible handle is required on the exposed edge of the door.
7.5.1 Panic door hardware which does not interfere with passage through a doorway is available and should be used where possible.
7.5.2 If transparent glazing is incorporated in a door, it should extend low enough (900 to 1000 mm above the floor) to permit persons in a wheelchair to see and be seen. Transparent glazing in doors is appreciated by people who are deaf, hard of hearing and by others who rely on visual cues.
7.6 Door Opening Forces
The maximum force for pushing or pulling open a door shall be
These forces do not apply to the force required to retract latch bolts or disengage other devices that may hold the door in a closed position.
7.7 Power-Assisted and Automatic doors
Security controls can sometimes interfere with access to secure facilities. Where secure doors are located, a security card or card access should be combined with an automatic door opener activator to ensure controlled access to the facility by all people.
At least one power-assisted or automatic door should be provided at all main entrance(s) and doorways along the barrier-free path of travel. Service entrances are not acceptable.
Power-assisted swinging doors shall
7.7.1 Doors equipped with a power operator shall be activated by a sensor or a manual activating device identified with the international symbol for accessibility or, where security is required, by a key, card or radio transmitter. The location of these activating devices should ensure that a wheelchair does not interfere with the operation of the door once activated. (OBC A-22.214.171.124.(5))
Buttons or pads to open automatic doors must be well located, visible, and easily operable. The best location is determined by ensuring that the button or pad is
7.7.2 A 750 X 1200 mm clear, level area must be provided at any manual activating device location.
7.7.3 Manual activating devices must be mounted 600 to 1200 mm above the floor or ground level.
Where doors swing into a path of travel, it is desirable to have guardrails provided at a cane-detectable height extending at right angles to the wall containing the door. (Figure 7.9) Sliding automatic doors do not need guard rails for protection and are more convenient for persons in wheelchairs and people with visual impairments.
7.8 Door Closers
The sweep period of door closers in a barrier-free path of travel shall be adjusted to have a closing period of not less than 3 seconds measured from when the door is in an open position of 70o to the doorway, to when the door reaches a point 75 mm from the closed position, measured from the leading edge of the latch side of the door. (OBC 126.96.36.199.(9)).
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