Hello,
I can tell you from experience that sodium light can be very unhelpful, particularly when, as you cite, reading timetables. Often these are too high up anyway, as I'm a wheelchair user, and the yellow light certainly doesn't make it clearer.
Another consideration is that this type of light changes colour values; red all but disappears under such conditions. This makes it all the more puzzling to me that the majority of streetlights are like this.
Some time ago (possibly on another list) there was a discussion about a place called Buchanan Street in Glasgow, which has blue lighting. I'm sure that this, too can cause problems for people with visual impairments but I've not read of any being reported;
http://www.pps.org/great_public_spaces/one?public_place_id=755#
Cheers,
Helen
-----Original Message-----
From: Antoinette M. Fennell [mailto:[log in to unmask]]
Sent: 10 November 2008 15:55
To: [log in to unmask]
Subject: Sodium Lighting
Hello,
I received a query on street lighting - specifically Sodium lighting and
the problems that this lighting poses for people with regard to visual
contrast (visibility of kerb edges, reading timetables in low lighting
etc.)
Is anyone aware of guidance or recommendations on street lighting? Either
from an accessibility or a security point of view.
Kindest regards,
Antoinette
Dr Antoinette Fennell
Project Manager
Centre for Excellence in Universal Design (CEUD)
National Disability Authority
25 Clyde Rd
Dublin 4
Tel: +353 (0)1 6080 478
Fax: +353 (0)1 6609 935
Web address www.universaldesign.ie
CEUD Vision: “The Centre is dedicated to the principle of universal access
for people in Ireland to participate in a society that takes account of
human difference, enabling everyone to interact with their environment to
the best of their ability”
"Access and the City- universally designed communications for ease of
visiting and effective living in cities and towns"
20 November 2008
more details on www.universaldesign.ie
in conjunction with Dublin City Council and the European Observatory Towns
and Cities for All
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