Roundabout data/info

Here is Roundabout information I've been sharing with Council and Chief Hines
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Source: Carmel City-wide crash data from 2002-2006
% crashes with injury at ALL intersections (including roundabouts): 29%
% crashes with injury at ONLY single-lane roundabouts: 4%
% crashes with injury at ONLY multi-lane roundabouts: 7%

Average crash damage at a signal: $7,000 - $10,500
Average crash damage at a roundabout: $2,500

Here's another statistic regarding a roundabout in Valparaiso, Indiana (previously signalized):

Source: Valparaiso Magazine, Vol. 10, Issue 2, Spring 2010 (www.connecttovalpo.com)
# crashes in 2006, prior to roundabout: 29 (with 13 injuries)
# crashes in 2009, after roundabout: 22 (with two injuries)

Here are a few roundabout locations where before/after comparisons could be made:

116th/Spring Mill Road in Carmel, Indiana (previously all-way stop)
106th/Spring Mill Road in Carmel, Indiana (previously all-way stop)
Morse Road/SR 62, Franklin County, Ohio (previously a signal)

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Per our discussion last night, here's some info on Indiana Roundabouts. From my contact at the consulting firm:
-Carmel Indian is the roundabout capital of the US. They have several along a roadway that is similar to Beechmont Ave
-We can make arrangements for you to meet with folks from the City of Carmel Ind. They can give you an idea about how roundabouts have worked for them. Carmel is so pleased with the roundabouts that they happily will tell everyone about it
-Ted Hubbard, County Engineer's office and Bill Brayshaw have both done the tour and thought it was great

I believe the Mayor was invited on a trip last year, but we could all make a trip up together. I'd be all for seeing it first hand.

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more data from Wisconsin DOT
http://www.dot.state.wi.us/safety/motorist/roaddesign/roundabouts/benefits.htm


Cortney