Floor designators is a set of Tactile and Braille signages installed on the both side of the elevator's outside door jambs which following the floor numbering scheme. They are especially common in the United States, and few countries in Europe and Asia.
Usually the signages have a black background with white tactile and braille or just plain (or sometimes colored) stainless steel with tactile and braille.
United States' ADA
407.2 Elevator Landing Requirements. Elevator landings shall comply with 407.2.
407.2.3 Hoistway Signs. Signs at elevator hoistways shall comply with 407.2.3.
407.2.3.1 Floor Designation. Floor designations complying with 703.2 and 703.4.1 shall be provided on both jambs of elevator hoistway entrances. Floor designations shall be provided in both tactile characters and braille. Tactile characters shall be 2 inches (51 mm) high minimum. A tactile star shall be provided on both jambs at the main entry level.
407.2.3.2 Car Designations. Destination-oriented elevators shall provide tactile car identification complying with 703.2 on both jambs of the hoistway immediately below the floor designation. Car designations shall be provided in both tactile characters and braille. Tactile characters shall be 2 inches (51 mm) high minimum.
—2010 ADA Standards for Accessible Design, Department of Justice, September 15, 2010
Hong Kong's BFA 2008
|“||Division 19 --- LIFTS
Lift provides means of vertical transportation to any user of the building to move from one floor to another.
INDICATION AND NOTIFICATION FOR LIFTS COMPLYING WITH DIVISION 19
The requirements for indication and notification to be provided in respect of accessible lifts are set out in paragraphs 81 to 83.
Obligatory Design Requirements
81. Indication and Notification for Accessible Lifts
An illuminated visual indicator and an audible signal shall be provided at the lift entrance to indicate the arrival of the lift car and its direction of travel. The audible signal shall sound once for UP direction and twice for DOWN direction, and shall be activated before the arrival of the lift. The audible signal can be broadcasted from a device in the lift car as an alternative provided it can be heard from the lift lobby.
Tactile and Braille floor designations shall be provided on the jambs on both sides of each lift entrance, by means of Arabic numerals, minimum 60 mm high, raised 1 mm, and at 1200 mm above the finished floor level.
—Design Manual - Barrier Free Access 2008, Buildings Department, Hong Kong, China
Notes and references
|"This elevator only serves two floors." |
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