![]() Defining, understanding, and anticipating traffic behaviors are key to a safe and efficient evacuation.ĪrcGIS Network Analyst is an excellent tool for mapping and modeling time- and distance-based travel. Because evacuations typically involve coordinating the actions of private citizens who may or may not be well informed, are traveling primarily in private vehicles, and are responding to an immediate or near immediate event, successful outcomes depend on careful planning, proper notification, and safe and timely community response. Time-based evacuation modeling is a key component in any community disaster plan that requires assembling and relocating many residents to safe areas or having them simply leave their homes and workplaces. They will be used to refine the evacuation plan. This is one of the two ovals on the map that highlight critical parts of the model. Part 1: An Overview of Evacuation Modeling with ArcGIS Network Analyst ![]() To respond to this scenario, the exercise will test a hypothetical "back door" that might allow evacuation of many residents directly away from the advancing fire. Had the fire expanded only slightly, the entire community would have become cut off from safety. This exercise walks the reader through assessing the evacuation potential of over 1,000 homes in the Glenrosa neighborhood and testing evacuation options using the actual Glenrosa/Gellatly fire footprint. This ArcGIS 10 exercise shows how the ArcGIS Network Analyst extension can be used to identify, accumulate, and route an at-risk population from homes or workplaces to safety. At its height, the fire caused the evacuation of more than 11,250 residents. In the five days required to contain it, the Glenrosa/Gellatly fire burned more than 900 acres and damaged or destroyed several homes. An evacuation center was established at Royal LePage Center, a large civic complex next to the West Kelowna City Hall. Pushed by 37 mph winds, the fire spread quickly to the Glenrosa neighborhood, and the residents of approximately 3,000 homes were quickly evacuated. On July 18, 2009, at approximately 2:30 p.m., a small wildfire started in wooded hills west of Glenrosa, a neighborhood in West Kelowna, located on Lake Okanogan in southeastern British Columbia-an area that has seen its share of wildfires. On July 18, 2009, a small wildfire in the hills west of Glenrosa, in southeastern British Columbia, quickly spread and necessitated the evacuation of approximately 3,000 homes.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |