One-way or two-way? Change to two-way increases traffic, but decreases accidents, increase property values and reduces crime 

William Riggs & John Gilderbloom, "Two-Way Street Conversion: Evidence of Increased Livability in Louisville," Journal of Planning Education and Research 36 (2015): 1

Abstract (comprehensive): While recent policies directed toward multimodal or complete streets have encouraged increased funding for bicycle- and pedestrian-oriented projects, many streets are still plagued by unsafe conditions. This is especially true for one-way streets, which studies show often create unsafe crossing conditions. This study evaluates changes to street dynamics after a two-way street conversion in Louisville, Kentucky. We find that traffic flow increased after implementation of two-way flow, but traffic accidents decreased. We also note other ancillary benefits, such as increase in property values and reduced crime. These results provide evidence that conversions can promote mobility, safety, and livability.

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