before: 50 crashes/year

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Before: 50 crashes/year After: 17 crashes/year 70 percent crash rate reduction Rear end crashes reduced most 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

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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. - PowerPoint PPT Presentation

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Page 1: Before: 50 crashes/year

Before: 50 crashes/yearAfter: 17 crashes/year 70 percent crash rate reduction

Rear end crashes reduced most

Before And After Analysis of

Two-Way Left-TurnLane and Driveway

Consolidation Access

Management Project

Along South Duff Ave.

In Ames, IowaCompleted Fall

1994

Page 2: Before: 50 crashes/year

Driveway-Related Crashes Des Moines, Iowa Metropolitan

Area, 1996 Data

Ankeny Blvd.: Recently Completed Raised Median and Driveway Consolidation Project In Commercial District

Ankeny, Iowa Detail

1st Avenue: Mainly Four-Lane UndividedWith Substantial Retail Development--Potential for Better Access Management