(2007) The Conversion of Four Lane Undivded Urban Roadways to Three Lane Facilities, 2007. Iowa State University
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welch4to3Lane1999.pdf File Size:407kB |
Abstract
In recent years, many traffic engineers have advocated converting four-lane undivided urban streets to threelane two-way left-turn facilities. A number of these conversions have been successfully implemented. Accident rates have decreased while corridor and intersection levels of service remained acceptable. This conversion concept is yet another viable alternative “tool” to place in our urban safety/congestion toolbox.
| Item Type: | Departmental Report |
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| Keywords: | Left-hand Lanes, Roads, Interchanges, Intersections, Traffic |
| Subjects: | Transportation > Traffic safety Transportation > Roads and highways Transportation |
| ID Code: | 5415 |
| Deposited By: | Margaret Barr |
| Deposited On: | 01 Oct 2007 |
| Last Modified: | 01 Oct 2007 |
| URI: | https://publications.iowa.gov/id/eprint/5415 |