curry_WSE_outflow_compare_1

This technical report evaluates the feasibility and effectiveness of density-based spatial clustering methods, specifically DBSCAN, for objectively delineating real estate market areas in St. Tammany Parish, Louisiana. According to the International Association of Assessing Officers (IAAO), a market area is the geographic region from which demand originates and where competing properties are located. The primary research question is: How effectively can DBSCAN identify localized real estate market areas to enhance assessor workflows? Using real estate transaction data from 2024: including sale price, geographic coordinates, property characteristics, and transaction dates, this study demonstrates clustering applications exclusively using R. The effectiveness of DBSCAN will be evaluated primarily for spatial coherence and alignment with known market behaviors through qualitative assessment and descriptive statistics. This report outlines a practical framework for integrating density-based clustering techniques into assessor workflows.

DBCA

Interactive map showing locations of bike thefts in Vancouver in 2021

The analysis examines the impact of weather events on population health and the economy. Figure 1 highlights that TORNADO is the most harmful event for population health, causing the highest number of fatalities, followed by EXCESSIVE HEAT and FLASH FLOOD. The state-level analysis reveals that TORNADO is the most fatal event in most states. Figure 2 shows that FLOOD is the most economically damaging event, with significant property damage, followed by HURRICANE/TYPHOON and STORM SURGE. The state-level economic impact varies, with FLOOD and TORNADO being the most damaging in most states. Overall, TORNADO and FLOOD are the most harmful events for health and the economy, respectively, with significant regional variations.