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Bus Use of Shoulders (2006) / Chapter Skim
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From page 1...
... It represents a low-cost and relatively quick strategy to improve bus running times and reliability without requiring costly expansion of the highway right-of-way. Because the bus shoulder operations can be implemented within the highway right-of-way, minimal disruption and traffic impacts result.
From page 2...
... , traffic safety risks, and the added costs for maintenance and enforcement. The traffic safety concerns include: • Conflicts at on- and off-ramps; • Sight distance adequacy, particularly at on-ramps; • Conflicts for motorists pulling onto the shoulder; • Loss of safe evasive movement shelter area; • Need for bus driver training; • Speed differential; • Impact on adjacent lane motorists; • Return merge distance adequacy; • Shoulder area debris hazards; • Reduced clearance for buses at bridge abutments; and • Highway drainage.

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