The report will be of interest and use to the design and operations staffs of state departments of transportation and others responsible for urban freewyas. Reducing lane widths and reducing or eliminating shoulders are ways to inexpensively add a freeway lane. The report begins to quantify the effect of narrow lanes and shoulders on the safety and operation of a freeway. It includes an evaluation methodology and design guidelines to help freeway designers evaluate alternatives that minimize or eliminate the need to widen the roadway. It also includes sufficient background information so that designers can have confidence in the methodology and guidelines.
Use of Shoulders and Narrow Lanes to Increase Freeway Capacity
1995
86 pages
Report
No indication
English
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