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Hi, While I have not come across the term lead-line, I am familiar with the practice. This includes tactile lines on the ground e.g. in railway stations which blind people can follow to particular facilities. It also includes environmental information beacons which have an audio output. They tend to be called different things in different countries and work slightly differently and could be based on infrared on RFID technology. Generally the user has an activator/receiver which enables them to hear an audio message output by the beacon, which could be located on a building or a particular facility in a shopping centre or station. The sound will get louder as the person approaches. There may also be a message, giving e.g. the name and some of the facilities provided. Regards Marin On 15/10/2012 17:11, Bryan Matthews wrote: > Hi > I'm wondering whether anyone has come across the concept of lead-lines? This seems to be the idea of including cues within the built environment that visually impaired people are able to pick up on to assist with navigation and wayfinding - they might be lines or they might be other sorts of cues. I'm doing some research to try to identify particular examples of good practice, and/or examples of where design guidance suggests or promotes the use of lead lines. Any pointers gratefully received. > Best wishes > Bryan > > Bryan Matthews > Senior Research Fellow > Institute for Transport Studies and Centre for Disability Studies University of Leeds > LS2 9JT > United Kingdom > Tel: +44 113 3435341 > QUEEN'S ANNIVERSARY PRIZE WINNERS - 'sustained transport excellence' - www.its.leeds.ac.uk/queensprize > > ________________End of message________________ > > This Disability-Research Discussion list is managed by the Centre for Disability Studies at the University of Leeds (www.leeds.ac.uk/disability-studies). > > Enquiries about list administration should be sent to [log in to unmask] > > Archives and tools are located at: www.jiscmail.ac.uk/lists/disability-research.html > > You can VIEW, POST, JOIN and LEAVE the list by logging in to this web page. -- I am currently participating in UCU industrial action on pensions by working to contract. For more information please see http://www.ucu.org.uk. Apologies for any resulting delay in responding. ________________End of message________________ This Disability-Research Discussion list is managed by the Centre for Disability Studies at the University of Leeds (www.leeds.ac.uk/disability-studies). Enquiries about list administration should be sent to [log in to unmask] Archives and tools are located at: www.jiscmail.ac.uk/lists/disability-research.html You can VIEW, POST, JOIN and LEAVE the list by logging in to this web page.