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Evaluating Aggregate Terrestrial Impacts of Road Construction Projects for Advanced Regional Mitigation

机译：评估道路建设项目对陆地区域总体减缓的总体陆地影响

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This study presents a GIS-based database framework used to assess aggregate terrestrial habitat impacts from multiple highway construction projects in California, USA. Transportation planners need such impact assessment tools to effectively address additive biological mitigation obligations. Such assessments can reduce costly delays due to protracted environmental review. This project incorporated the best available statewide natural resource data into early project planning and preliminary environmental assessments for single and multiple highway construction projects, and provides an assessment of the 10-year state-wide mitigation obligations for the California Department of Transportation. Incorporation of these assessments will facilitate early and more strategic identification of mitigation opportunities, for single-project and regional mitigation efforts. The data architecture format uses eight spatial scales: six nested watersheds, counties, and transportation planning districts, which were intersected. This resulted in 8058 map planning units statewide, which were used to summarize all subsequent analyses. Range maps and georeferenced locations of federally and state-listed plants and animals and a 55-class landcover map were spatially intersected with the planning units andrnthe buffered spatial footprint of 967 funded projects. Projected impacts were summarized and output to the database. Queries written in the database can sum expected impacts and provide summaries by individual construction project, or by watershed, county, transportation district or highway. The data architecture allows easy incorporation of new information and results in a tool usable without GIS by a wide variety of agency biologists and planners. The data architecture format would be useful for other types of regional planning.
机译：这项研究提出了一个基于GIS的数据库框架，用于评估美国加利福尼亚州多个高速公路建设项目对陆地生境的总体影响。运输计划者需要这种影响评估工具，以有效地解决附加的生物缓解义务。这样的评估可以减少由于长期的环境审查而造成的代价昂贵的延误。该项目将最佳的全州自然资源数据纳入了早期的项目规划和针对单个和多个高速公路建设项目的初步环境评估，并评估了加利福尼亚州交通运输部对10年州范围的减排义务的评估。纳入这些评估将有助于对单个项目和区域减灾工作进行早期和更具战略性的减灾机会识别。数据架构格式使用八个空间比例尺：六个相交的嵌套分水岭，县和交通规划区。这导致了全州8058个地图规划单位的使用，这些单位被用来汇总所有后续分析。将联邦和州列出的动植物的范围图和地理参考位置以及55类土地覆盖图与规划单位进行空间相交，并缓冲967个资助项目的空间足迹。汇总了预计的影响并将其输出到数据库。数据库中编写的查询可以汇总预期影响，并按单个建筑项目或分水岭，县，运输区或高速公路提供汇总。数据体系结构允许轻松地合并新信息，并且可以使各种机构生物学家和计划人员使用无需GIS即可使用的工具。数据架构格式对于其他类型的区域规划将很有用。

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