This project was undertaken to compare operational and safety characteristics of leading versus lagging protected left turn operation. The measures of effectiveness included field measured intersection delay with leading and with lagging left turns. Intersections in Pima County, Glendale, Tempe and Mesa, Arizona were studied with both leading and lagging operation. Intersection delay studies were also done with first car versus third car actuation of leading protected left turn phases. Signal progression was studied with leading, lagging and combination of leading and lagging left turns which provided the best progression. This evaluation was accomplished with an instrumented vehicle and travel time runs throughout a grid. Accident studies were conducted in Tucson, Pima County and Scottsdale, Arizona. These studies compared accident frequency before and after the conversion from leading to lagging left turns. A public opinion survey was conducted to obtain motorists' preference of leading or lagging left turns.
This report examines how effectively Pima County’s natural open-space acquisitions have addressed priorities for conserving species’ habitats and landscape features identified in the Sonoran Desert Conservation Plan. The scope of this study is beyond the County's Multi-Species Conservation Plan, which is a subset of the overall Sonoran Desert Conservation Plan.
The purpose of this study is to provide the U.S. Fish & Wildlife Service with an analysis that identifies anticipated impacts to each of the covered species and asks the question: How effectively will the County's mitigation lands include the specific habitats of covered species under the Multi-Species Conservation Plan?
Develops the methods for using the National Land Cover Dataset to report change by jurisdictions and land ownership by utilizing an existing dataset. Local GIS-based measures of development based on tax assessor records do not provide direct measures of habitat loss.
The Arizona Medical Board has improved its licensing and registration processes, but should continue to follow them and conduct a risk-based review of previously issued licenses. Because it previously lacked adequate policies and procedures, the Board has retained a vendor to review the initial medical doctor licenses it issued between October 1, 2011 and February 5, 2014. The Board should also conduct a risk-based review of the initial MD licenses it issued between February 6, 2014 and June 16, 2014, and continue to follow its improved licensing and registration processes.
The Department of Environmental Quality is responsible for ensuring that owners and operators of petroleum underground storage tanks comply with federal and state financial responsibility requirements. These requirements help ensure that UST owners and operators can pay to clean up leaks and spills and compensate third parties for bodily injury and any property damage incurred. Sites and/or operators of petroleum USTs include service stations, convenience stores, and local governments. The Department continues to fail to ensure that UST owners and operators meet financial responsibility requirements. Although the Department has begun to take steps to identify and address some of the weaknesses with its financial responsibility program, it should take additional steps, including developing policies and procedures to ensure UST owners and operators comply with financial responsibility requirements.
