PVAG Chapter 7

CHAPTER 7: COMMUNICATION ELEMENTS AND FEATURES

V701 General

V701.1 Scope.  The provisions of Chapter 7 shall apply where required by Chapter 2 or where referenced by a requirement in this document.

V702 Emergency Alarm Systems

V702.1 General.  Emergency alarm systemsshall have permanently installed audible and visible alarms complying with NFPA 72 (1999 or 2002 edition) (incorporated by reference, see “Referenced Standards” in Chapter 1), except that the maximum allowable sound level of audible notification appliances complying with section 4-3.2.1 of NFPA 72 (1999 edition) shall have a sound level no more than 110 dB at the minimum hearing distance from the audible appliance.  In addition, alarms in guest rooms required to provide communication features shall comply with sections 4-3 and 4-4 of NFPA 72 (1999 edition) or sections 7.4 and 7.5 of NFPA 72 (2002 edition).

EXCEPTION:  Emergency alarm systems in medical care facilities shall be permitted to be provided in accordance with industry practice.

V703 Signs

V703.1 General.  Signs shall comply with V703.  Where both visual and tactile characters are required, either one sign with both visual and tactile characters, or two separate signs, one with visual, and one with tactile characters, shall be provided.

V703.2 Raised Characters.  Raised characters shall comply with V703.2 and shall be duplicated in braille complying with V703.3.  Raised characters shall be installed in accordance with V703.4.

V703.2.1 Depth.  Raised characters shall be 1/32 inch (0.8 mm) minimum above their background.

V703.2.2 Case.  Characters shall be uppercase.

V703.2.3 Style.  Characters shall be sans serif.  Characters shall not be italic, oblique, script, highly decorative, or of other unusual forms.

V703.2.4 Character ProportionsCharacters shall be selected from fonts where the width of the uppercase letter "O" is 55 percent minimum and 110 percent maximum of the height of the uppercase letter "I".

V703.2.5 Character Height.  Character height measured vertically from the baseline of the character shall be e inch (16 mm) minimum and 2 inches (51 mm) maximum based on the height of the uppercase letter "I".

EXCEPTION:  Where separate raised and visual characters with the same information are provided, raised character height shall be permitted to be ½ inch (13 mm) minimum.

V703.2.6 Stroke Thickness.  Stroke thickness of the uppercase letter "I" shall be 15 percent maximum of the height of the character.

V703.2.7 Character Spacing.  Character spacing shall be measured between the two closest points of adjacent raised characters within a message, excluding word spaces.  Where characters have rectangular cross sections, spacing between individual raised characters shall be c inch (3.2 mm) minimum and 4 times the raised character stroke width maximum.  Where characters have other cross sections, spacing between individual raised characters shall be 1/16 inch (1.6 mm) minimum and 4 times the raised character stroke width maximum at the base of the cross sections, and c inch (3.2 mm) minimum and 4 times the raised character stroke width maximum at the top of the cross sections.  Characters shall be separated from raised borders and decorative elements d inch (9.5 mm) minimum.

V703.2.8 Line Spacing.  Spacing between the baselines of separate lines of raised characters within a message shall be 135 percent minimum and 170 percent maximum of the raised character height.

V703.3 Braille.  Braille shall be contracted (Grade 2) and shall comply with V703.3 and V703.4.

V703.3.1 Dimensions and Capitalization.  Braille dots shall have a domed or rounded shape and shall comply with Table V703.3.1.  The indication of an uppercase letter or letters shall only be used before the first word of sentences, proper nouns and names, individual letters of the alphabet, initials, and acronyms.

Table V703.3.1 Braille Dimensions

Measurement Range

Minimum in Inches
Maximum in Inches

Dot base diameter

0.059 (1.5 mm) to 0.063 (1.6 mm)

Distance between two dots in the same cell1

0.090 (2.3 mm) to 0.100 (2.5 mm)

Distance between corresponding dots in adjacent cells1

0.241 (6.1 mm) to 0.300 (7.6 mm)

Dot height

0.025 (0.6 mm) to 0.037 (0.9 mm)

Distance between corresponding dots from one cell directly below1

0.395 (10 mm) to 0.400 (10.2 mm)

1.  measured center-to-center

V703.3.2 Position.  Braille shall be positioned below the corresponding text.  If text is multi-lined, braille shall be placed below the entire text.  Braille shall be separated d inch (9.5 mm) minimum from any other tactile characters and d inch (9.5 mm) minimum from raised borders and decorative elements.

EXCEPTION:  Braille provided on elevator car controls shall be separated 3/16 inch (4.8 mm) minimum and shall be located either directly below or adjacent to the corresponding raised characters or symbols.

V703.4 Installation Height and Location.  Signs with tactile characters shall comply with V703.4.

V703.4.1 Height Above Finish Deck Surface.  Tactile characters on signs shall be located 48 inches (1220 mm) minimum above the finish deck surface, measured from the baseline of the lowest tactile character and 60 inches (1525 mm) maximum above the finish deck surface, measured from the baseline of the highest tactile character.

EXCEPTION:  Tactile characters for elevator car controls shall not be required to comply with V703.4.1.

V703.4.2 Location.  Where a tactile sign is provided at a door, the sign shall be located alongside the door at the latch side.  Where a tactile sign is provided at double doors with one active leaf, the sign shall be located on the inactive leaf.  Where a tactile sign is provided at double doors with two active leafs, the sign shall be located to the right of the right hand door.  Where there is no wall space at the latch side of a single door or at the right side of double doors, signs shall be located on the nearest adjacent wall.  Signs containing tactile characters shall be located so that a clear deck space of 18 inches (455 mm) minimum by 18 inches (455 mm) minimum, centered on the tactile characters, is provided beyond the arc of any door swing between the closed position and 45 degree open position.

EXCEPTION:  Signs with tactile characters shall be permitted on the push side of doors with closers and without hold-open devices.

V703.5 Visual Characters.  Visual characters shall comply with V703.5.

EXCEPTION:  Where visual characters comply with V703.2 and are accompanied by braille complying with V703.3, they shall not be required to comply with V703.5.2 through V703.5.9.

V703.5.1 Finish and Contrast.  Characters and their background shall have a non-glare finish.  Characters shall contrast with their background with either light characters on a dark background or dark characters on a light background.

V703.5.2 Case.  Characters shall be uppercase or lowercase or a combination of both.

V703.5.3 Style.  Characters shall be conventional in form.  Characters shall not be italic, oblique, script, highly decorative, or of other unusual forms.

V703.5.4 Character Proportions.  Characters shall be selected from fonts where the width of the uppercase letter "O" is 55 percent minimum and 110 percent maximum of the height of the uppercase letter "I".

V703.5.5 Character Height.  Minimum character height shall comply with Table V703.5.5.  Viewing distance shall be measured as the horizontal distance between the character and an obstruction preventing further approach towards the sign.  Character height shall be based on the uppercase letter "I".

Table V703.5.5 Visual Character Height (text version)

Height to Finish Deck Surface From Baseline of Character

Horizontal Viewing Distance

Minimum Character Height

40 inches (1015 mm) to less

than or equal to 70 inches

(1780 mm)

Less than 72 inches (1830 mm)

e inch (16 mm)

72 inches (1830 mm) and greater

e inch (16 mm), plus c inch (3.2 mm) per foot (305 mm) of viewing distance above 72 inches (1830 mm)

Greater than 70 inches (1780 mm) to less than or equal to 120 inches (3050 mm)

Less than 180 inches (4570 mm)

2 inches (51 mm)

180 inches (4570 mm) and greater

2 inches (51 mm), plus c inch (3.2 mm) per foot (305 mm) of viewing distance above 180 inches (4570 mm)

Greater than 120 inches

(3050 mm)

Less than 21 feet (6400 mm)

3 inches (75 mm)

21 feet (6400 mm) and greater

3 inches (75 mm), plus c inch (3.2 mm) per foot (305 mm) of viewing distance above 21 feet (6400 mm)

V703.5.6 Height From Finish Deck Surface.  Visual characters shall be 40 inches (1015 mm) minimum above the finish deck surface.

EXCEPTIONS:  1.  Visual characters indicating elevator car controls shall not be required to comply with V703.5.6.

2.  This requirement does not apply where the administrative authority requires signs to be mounted below 40 inches (1015 mm).

V703.5.7 Stroke Thickness.  Stroke thickness of the uppercase letter "I" shall be 10 percent minimum and 30 percent maximum of the height of the character.

V703.5.8 Character Spacing.  Character spacing shall be measured between the two closest points of adjacent characters, excluding word spaces.  Spacing between individual characters shall be 10 percent minimum and 35 percent maximum of character height.

V703.5.9 Line Spacing.  Spacing between the baselines of separate lines of characters within a message shall be 135 percent minimum and 170 percent maximum of the character height.

V703.6 Pictograms.  Pictograms shall comply with V703.6.

V703.6.1 Pictogram Field.  Pictograms shall have a field height of 6 inches (150 mm) minimum.  Characters and braille shall not be located in the pictogram field.

V703.6.2 Finish and Contrast.  Pictograms and their field shall have a non-glare finish.  Pictograms shall contrast with their field with either a light pictogram on a dark field or a dark pictogram on a light field.

V703.6.3 Text Descriptors.  Pictograms shall have text descriptors located directly below the pictogram field.  Text descriptors shall comply with V703.2, V703.3 and V703.4.

V703.7 Symbols of Accessibility.  Symbols of accessibility shall comply with V703.7.

V703.7.1 Finish and Contrast.  Symbols of accessibility and their background shall have a non-glare finish.  Symbols of accessibility shall contrast with their background with either a light symbol on a dark background or a dark symbol on a light background.

V703.7.2 Symbols.

V703.7.2.1 International Symbol of Accessibility.  The International Symbol of Accessibility shall comply with Figure V703.7.2.1.

V703.7.2.2 Assistive Listening Systems.  Assistive listening systems shall be identified by the International Symbol of Access for Hearing Loss complying with Figure V703.7.2.2

V703.7.2.3 Volume Control Telephones.  Telephones with a volume control shall be identified by a pictogram of a telephone handset with radiating sound waves on a square field such as shown in Figure V703.7.2.3.

V704 Telephones

V704.1 General.  Public telephones shall comply with V704.

V704.2 Wheelchair Accessible Telephones.  Wheelchair accessible telephones shall comply with V704.2.

V704.2.1 Clear Deck Space.  A clear deck space complying with V305 shall be provided.  The clear deck space shall not be obstructed by bases, enclosures, or seats.

V704.2.1.1 Parallel Approach.  Where a parallel approach is provided, the distance from the edge of the telephone enclosure to the face of the telephone unit shall be 10 inches (255 mm) maximum.

V704.2.1.2 Forward Approach.  Where a forward approach is provided, the distance from the front edge of a counter within the telephone enclosure to the face of the telephone unit shall be 20 inches (510 mm) maximum.

V704.2.2 Operable Parts.  Operable parts shall comply with V309.  Telephones shall have push-button controls where such service is available.

V704.2.3 Telephone Directories.  Telephone directories, where provided, shall be located in accordance with V309.

V704.2.4 Cord Length.  The cord from the telephone to the handset shall be 29 inches (735 mm) long minimum.

V704.3 Volume Control Telephones.  Public telephones required to have volume controls shall be equipped with a receive volume control that provides a gain adjustable up to 20 dB minimum.  For incremental volume control, provide at least one intermediate step of 12 dB of gain minimum.  An automatic reset shall be provided.

V704.4 TTYs.  TTYs required at a public telephone shall be permanently affixed within, or adjacent to, the telephone enclosure.  Where an acoustic coupler is used, the telephone cord shall be sufficiently long to allow connection of the TTY and the telephone receiver.

V704.4.1 Height.  When in use, the touch surface of TTY keypads shall be 34 inches (865 mm) minimum above the finish deck surface.

EXCEPTION:  Where seats are provided, TTYs shall not be required to comply with V704.4.1.

 

V705 Two-Way Communication Systems

V705.1 General.  Two-way communication systems shall comply with V705.

V705.2 Audible and Visual Indicators.  The system shall provide both audible and visual signals.

V705.3 Handsets.  Handset cords, if provided, shall be 29 inches (735 mm) long minimum.

V706 Assistive Listening Systems

V706.1 General.  Assistive listening systems shall comply with V706.

V706.2 Receiver Jacks.  Receivers required for use with an assistive listening system shall include a c inch (3.2 mm) standard mono jack.

V706.3 Receiver Hearing-Aid Compatibility.  Receivers required to be hearing-aid compatible shall interface with telecoils in hearing aids through the provision of neckloops.

V706.4 Sound Pressure Level.  Assistive listening systems shall be capable of providing a sound pressure level of 110 dB minimum and 118 dB maximum with a dynamic range on the volume control of 50 dB.

V706.5 Signal-to-Noise Ratio.  The signal-to-noise ratio for internally generated noise in assistive listening systems shall be 18 dB minimum.

V706.6 Peak Clipping Level.  Peak clipping shall not exceed 18 dB of clipping relative to the peaks of speech.

V707 Automatic Teller Machines and Fare Machines

V707.1 General.  Automatic teller machines and fare machines shall comply with V707.

V707.2 Clear Deck Space.  A clear deck space complying with V305 shall be provided.

V707.3 Operable Parts.  Operable parts shall comply with V309.  Unless a clear or correct key is provided, each operable part shall be able to be differentiated by sound or touch, without activation.

V707.4 Privacy.  Automatic teller machines shall provide the opportunity for the same degree of privacy of input and output available to all individuals.

V707.5 Speech Output.  Machines shall be speech enabled.  Operating instructions and orientation, visible transaction prompts, user input verification, error messages, and all displayed information for full use shall be accessible to and independently usable by individuals with vision impairments.  Speech shall be delivered through a mechanism that is readily available to all users, including but not limited to, an industry standard connector or a telephone handset.  Speech shall be recorded or digitized human, or synthesized.

EXCEPTIONS:  1.  Audible tones shall be permitted instead of speech for visible output that is not displayed for security purposes, including but not limited to, asterisks representing personal identification numbers.

2.  Advertisements and other similar information shall not be required to be audible unless they convey information that can be used in the transaction being conducted.

3.  Where speech synthesis cannot be supported, dynamic alphabetic output shall not be required to be audible.

V707.5.1 User Control.  Speech shall be capable of being repeated or interrupted.  Volume control shall be provided for the speech function.

EXCEPTION:  Speech output for any single function shall be permitted to be automatically interrupted when a transaction is selected.

V707.5.2 Receipts.  Where receipts are provided, speech output devices shall provide audible balance inquiry information, error messages, and all other information on the printed receipt necessary to complete or verify the transaction.

EXCEPTIONS:  1.  Machine location, date and time of transaction, customer account number, and the machine identifier shall not be required to be audible.

2.  Information on printed receipts that duplicates information available on-screen shall not be required to be presented in the form of an audible receipt.

3.  Printed copies of bank statements and checks shall not be required to be audible.

V707.6 Input.  Input devices shall comply with V707.6.

V707.6.1 Input Controls.  At least one tactilely discernible input control shall be provided for each function.  Where provided, key surfaces not on active areas of display screens, shall be raised above surrounding surfaces.  Where membrane keys are the only method of input, each shall be tactilely discernable from surrounding surfaces and adjacent keys.

V707.6.2 Numeric Keys.  Numeric keys shall be arranged in a 12-key ascending or descending telephone keypad layout.  The number five key shall be tactilely distinct from the other keys.

V707.6.3 Function Keys.  Function keys shall comply with V707.6.3.

V707.6.3.1 Contrast.  Function keys shall contrast visually from background surfaces.  Characters and symbols on key surfaces shall contrast visually from key surfaces.  Visual contrast shall be either light-on-dark or dark-on-light.

EXCEPTION:  Tactile symbols required by V707.6.3.2 shall not be required to comply with V707.6.3.1.

V707.6.3.2 Tactile Symbols.  Function key surfaces shall have tactile symbols as follows: Enter or Proceed key: raised circle; Clear or Correct key: raised left arrow; Cancel key: raised letter ex; Add Value key: raised plus sign; Decrease Value key: raised minus sign.

V707.7 Display Screen.  The display screen shall comply with V707.7.

V707.7.1 Visibility.  The display screen shall be visible from a point located 40 inches (1015 mm) above the center of the clear deck space in front of the machine.

V707.7.2 Characters.  Characters displayed on the screen shall be in a sans serif font.  Characters shall be 3/16 inch (4.8 mm) high minimum based on the uppercase letter "I".  Characters shall contrast with their background with either light characters on a dark background or dark characters on a light background.

V707.8 Braille Instructions.  Braille instructions for initiating the speech mode shall be provided.  Braille shall comply with V703.3.