可供选择的项目设计、位置、尺寸、运营、材料和/或技术方案。具体应包括具有类似技术特征或功能的项目,而且可以满足预期目标,但可能具有不同的位置、尺寸、技术、设计、时间框或运营程序,以及“无项目”替代方案。在项目范围界定期间,应考虑每种替代方案的环境、社会、技术、经济、法规和管辖可行性。
Adapted from School of Oriental and African Studies (SOAS) University of London, "Unit 1: Introduction to Environmental Impact Assessment (EIA)," accessed in 2022, View the Website; International Union for Conservation of Nature (IUCN), "Environmental & Social Management System (ESMS)," 2016, View the PDF; Asian Development Bank (ADB), "Guidebook on Safeguards (Volume I)," 2020, View the PDF; International Union for Conservation of Nature (IUCN), "Environmental and Social Impact Assessment," 2020, View the PDF.