Design Guidelines for Passing Lanes on Two-Lane Roadways (Super 2)
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2001-09-01
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Edition:September 2000-August 2001
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Abstract:The objective of this project was to develop Super 2 design criteria in a format suitable for inclusion in the TxDOT Roadway Design Manual. Site evaluations were conducted in Texas, Kansas, and Minnesota, including before-and-after studies of driver behavior for variations in pavement markings. A hypothetical two-lane, two-way rural highway with varying length and spacing of passing lanes was simulated under a variety of traffic mixes and two-way traffic volumes. Additionally, laptop-based surveys were conducted to determine driver reaction to various passing lane spacings, wording on related signs, shoulder widths, and pavement markings entering a passing lane section. Recommendations for the TxDOT Roadway Design Manual were developed based upon these activities.
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Main Document Checksum:urn:sha-512:f56c4ceb1d48fe2c58c7fddcfecf81e585e9a61dcb381db09fadfd9dc9e671679230a3d6d1dc145a7068c4d9588e8bb95ed94281f85f35b8584a55adf69c5b48
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