Naturally-occurring and technology-based hazards affect public health and safety to varying degrees. Naturally-occurring hazards include weather-related events and infectious disease epidemics/pandemics. Examples of technology-based hazards include hazardous materials incidents and electrical power outages. Due to limited resources, emergency planners have to prioritize hazards that may affect local jurisdictions. The purpose of the reported study was to construct a hierarchy of public safety hazards at the county and district levels to aid emergency planners. Public safety representatives from Indiana's District 6 region completed a survey, based on the Oregon Emergency Management Hazard Analysis Methodology, which assigns numerical scores to various hazard categories based on history, vulnerability, maximum potential, and probability of occurrence within a given jurisdiction. Participants also completed an open-ended question, in narrative form, to describe any additional hazards that may affect their jurisdiction. Significant differences were found in point totals for various hazards (p = .000). Significant differences were found among public safety disciplines in rating the infectious disease hazard (p = .02). No significant differences were found in point totals between naturally-occurring and technology-based hazards (p = .86). Overall, a high level of agreement between disciplines on rating hazards, and significant differences between hazard categories suggests that hazard category prioritization is warranted. / Department of Natural Resources and Environmental Management

Indiana University-Purdue University Indianapolis (IUPUI) / The purpose of this study was to locate the most suitable blocks to plant trees within Indianapolis, Indiana’s Near Eastside Community (NESCO). LiDAR data were utilized, with 1.0 meter average post spacing, captured by the Indiana Statewide Imagery and LiDAR Program from March 13, 2011 to April 30, 2012, to conduct a covertype classification and identify blocks that have low canopies, high impervious surfaces and high surface temperatures. Tree plantings in these blocks can help mitigate the effects of the urban heat island effect. Using 2010 U.S. Census demographic data and the principal component analysis, block groups with high social vulnerability were determined, and tree plantings in these locations could help reduce mortality from extreme heat events. This study also determined high and low priority plantable space in order to emphasize plantable spaces with the potential to shade buildings; this can reduce cooling costs and the urban heat island, and it can maximize the potential of each planted tree.