详情

原文传递 2020 Critical Update to Caltrans Wildlife Vulnerability Analysis. Final Report April 2020-March 2021.

题名：	2020 Critical Update to Caltrans Wildlife Vulnerability Analysis. Final Report April 2020-March 2021.
作者：	Thorne, J. H; Boynton, R. M; Hollander, A; Whitney, J; Shapiro, K. D.
关键词：	California##Priority treatment areas##Right of way##Vegetation management##Wildfire
摘要：	Catastrophic wildfires over the past five years (2015-2020) have caused damage to the Caltrans road network in 81 separatewildfire events, leading to expenditures of over $590,000,000 to repair highway assets. To reduce the risk of further wildfiredamage and to improve public safety, particularly for disadvantaged communities, Caltrans has engaged in assessing the prioritylocations for vegetation treatment within the lands it owns called the Right of Way (ROW). A 2019 analysis provided a mapshowing the top 17% of vulnerabilities in the road network, representing both the risk of wildfire and to disadvantagedcommunities that might need to use the transportation network as means of evacuation. This UC Davis research project wasdesigned to support efforts within Caltrans in conducting a wildfire vulnerability risk assessment for fuels reduction in the ROWto protect Caltrans’ infrastructure and travelers. The project involved four components: 1) conducting a rigorous peer review ofthe 2019 GIS-based study commissioned by Caltrans; 2) collecting and assessing the outputs of several climate change, fire, andother models currently developed or under development for California, as well as future climate projections; 3) developing aframework for the use of the prioritized segment model with other data further identify priority areas for fuels and riskreduction; and 4) interviews with Caltrans staff on opportunities and obstacles to increasing the pace and scale of vegetationtreatments. The results contribute to infrastructure risk assessments, can be used to prioritize areas for treatment, to create atracking system of areas treated and risk lowered over multiple years, and to engage local governments and wildfire fightingunits to coordinate landscape fire risk reductions.
总页数：	45 pages