ISO INTERNATIONAL STANDARD 23600 First edition 2007-11-01 Assistive products for persons with vision impairments and persons with vision and hearing impairments Acoustic and tactile signals for pedestrian traffic lights Aides fonctionnelles pour personnes ayant des deficiences visuelles et/oudesdeficiencesvisuellesetauditives-Signauxacoustiqueset tactiles pour feux de circulation Reference number ISO 23600:2007(E) ISO @ ISO 2007 by IHS under ted without license from IHS Not for Resale ISO 23600:2007(E) PDF disclaimer This PDF file may contain embedded typefaces. In accordance with Adobe's licensing policy, this file may be printed or viewed but shall not be edited unless the typefaces which are embedded are licensed to and installed on the computer performing the editing. . In downloading this file, parties accept therein the responsibility of not infringing Adobe's licensing policy. The ISO Central Secretariat accepts no liability in this area. Adobe is a trademark of Adobe Systems Incorporated. Details of the software products used to create this PDF file can be found in the General Info relative to the file; the PDF-creation parameters were optimized for printing. Every care has been taken to ensure thatthe file is suitable foruse by IsO member bodies. In the COPYRIGHTPROTECTED DOCUMENT @ISO2007 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from either IsO at the address below or ISO's member body in the country of the requester. ISO copyright office Case postale 56 : CH-1211 Geneva 20 Tel. + 41 22 749 01 11 Fax + 41 22 749 09 47 E-mail [email protected] Web www.iso.org Published in Switzerland @ ISO 2007 - All rights reserved T by IHS unde mitted without license from IHS Not for Resale ISO 23600:2007(E) Foreword IsO (the International Organization for Standardization) is a worldwide federation of national standards bodies (isO member bodies). The work of preparing International Standards is normally carried out through ISO established has the right to be represented on that committee. International organizations, governmental and non-governmental, in liaison with isO, also take part in the work. IsO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. InternationalStandardsaredraftedinaccordancewiththerulesgivenintheISO/lECDirectives,Part2 The main task of technical committees is to prepare International Standards. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. IsO shall not be held responsible for identifying any or all such patent rights. ISO 23600 was prepared by Technical Committee ISO/TC 173, Assistive products for persons with disability ii ISO 23600:2007(E) Introduction The aim of this International Standard is to specify the requirements for acoustic and tactile signals for pedestrian traffic lights, for persons with vision impairments and persons with vision and hearing impairments. Persons with vision impairments and persons with vision and hearing impairments travelling alone use a andcuesprovidetiminganddirectionalinformation. At an intersection that is equipped with pedestrian lights, acoustic and tactile signals provide equivalent forced to use the sounds of vehicular traffic in order to estimate the time to start crossing a street and to determinetheirdirectionoftravel.However,thesoundsofvehiculartrafficarenotalwaysavailableandoften travel safely and independently. The specifications and installation methods of acoustic and tactile signals for pedestrian traffic lights have been andperformancecriteriaforacousticandtactilesignalsforpedestriantrafficlight