A reconfiguration of South 12th Avenue between Irvington Road and Drexel Road has led to dramatic improvements in roadway safety, according to a new study by the University of Arizonas Center for Applied Transportation Sciences.

In October 2020, the City of Tucsons Department of Transportation and Mobility (DTM) expanded the road from five lanes to three. The redesign added a center turn lane, on-street parking and enhanced bike lanes aimed at improving safety and accessibility.

The study compared crash data from before the project (20172019) to after the changes were made (20212023) and found significant reductions in crashes and fatalities.

During the three-year period before the reconfiguration, two traffic-related deaths occurred on the stretch. Since the redesign, the study found z

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