Before And After Analysis of Two-Way Left-Turn Lane and Driveway Consolidation Access Management Project Along South Duff Ave. In Ames, Iowa Completed Fall 1994 After: 17 crashes/year 70 percent crash rate reduction Rear end crashes reduced most Before: 50 crashes/year
Driveway-Related Crashes Des Moines, Iowa Metropolitan Ankeny, Iowa Detail Ankeny Blvd.: Recently Completed Raised Median and Driveway Consolidation Project In Commercial District 1st Avenue: Mainly Four-Lane Undivided With Substantial Retail Development-- Potential for Better Access Management Driveway-Related Crashes Des Moines, Iowa Metropolitan Area, 1996 Data