1. Inventory of trees that will be lost due to the highway widening, i.e. information on the number and type of tree and location (village/subdistrict), excluding those that will be retained in the right-of-way
2. information on the number, size, type, and location of drainage crossings
3. Locations and names of sensitive receptors such as schools, temples, churches, museums, and hospitals/health centers
4. Avaliable baseline or secondary information on amblent air quality and noise levels
5. Secondary information on geology, hydrology and water quality