Conducting Environmental Impact Assessment in Developing Countries (United Nations University, 1999, 375 p.): 5. EIA tools: 5.2 Geographical information system: 5.2.13 Advantages of the GIS method

Conducting Environmental Impact Assessment in Developing Countries (United Nations University, 1999, 375 p.)

5. EIA tools

5.2 Geographical information system

		(introduction...)
		5.2.1 Data overlay and analysis
		5.2.2 Site impact prediction
		5.2.3 Wider area impact prediction
		5.2.4 Corridor analysis
		5.2.5 Cumulative effects assessment and EA audits
		5.2.6 Trend analysis
		5.2.7 Predicting impacts in a real time environment
		5.2.8 Continuous updating
		5.2.9 Multi attribute tradeoff system (MATS)
		5.2.10 Habitat analysis
		5.2.11 Aesthetic analysis
		5.2.12 Public consultation
		5.2.13 Advantages of the GIS method
		5.2.14 Limitations of the GIS method

5.2.13 Advantages of the GIS method

• Potential for storing and accessing very large data set.
• Consolidates data from various sources for geographic analysis.
• Effectively performs multiple map overlays, incorporating logical and mathematical manipulations.
• Generates descriptive statistics regarding the distribution of spatial phenomena.
• Allows a number of different scenarios to be investigated quickly and effectively by varying input parameters for successive analysis runs.
• Can generate maps for output to hard copy as well as displaying map information on the computer screen.