Minimum of 10000 to Maximum of 11300 Annual Average Daily Traffic (AADT)
Minor Road Traffic Volume:
Minimum of 2305 to Maximum of 2450 Annual Average Daily Traffic (AADT)
Average Major Road Volume :
Average Minor Road Volume :
Development Details
Date Range of Data Used:
2000 to 2005
Municipality:
Muscatine
State:
IA
Country:
USA
Type of Methodology Used:
Simple before/after
Sample Size (crashes):
4 crashes before, 4 crashes after
Other Details
Included in Highway Safety Manual?
No
Date Added to Clearinghouse:
Mar 21, 2011
Comments:
For 2 approaches. Authors note that the increase in crashes may be attributed to the horizontal curvature of the road near the site and very narrow median width which does not profivde sufficient space for one-stage crossing manuveurs.
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