US Access Board has a bulletin on pedestrian access to roundabouts at http://www.access-board.gov/research/roundabouts/bulletin.htm
-----Original Message-----
Sent: Wednesday, May 07, 2008 1:46 PM
To: ROUNDABOUTS@LISTSERV.KSU.EDU
Subject: Re: "access" vs. "safety" issues
I am rather new to roundabout design and new to this listserv but I haven't heard this question yet. Is there any potential that rumble strips across the road could be used to alert visually impaired pedestrians of approaching vehicles in each lane? Thanks!
Gail
In RI, we used rumble strips in our first 2-laner (semi) to deter drivers from driving on the gore areas at the entrances and on the
center island. Since the speeds are low, the noise is not a big issue. It also helps that his location is not urban and there are very few houses in the area close to the roundabout. As a note in terms of efficiency, since there is a signal a few hundred feet away from the roundabout, you can see queues at the signal, but not at the roundabout.
Francisco Lovera
Added comment by Janet Barlow regarding rumble strips:
See research by Inman, Davis and Sauerburger at http://www.tfhrc.gov/safety/pedbike/pubs/05080/05080.pdf which basically found that sound strips did not work well for visually impaired pedestrians at multiple lane situations due to multiple threat issues.
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