EMIS - UN-Habitat

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Building an Environmental Management Information System An Environmental Management Framework (EMF) An EMF refers to the geographic interpretation and aggregation of strategies. By mapping and overlaying the geographic distribution of critical environmental resources, areas can be classified or ranked by their degree of exposure to environmental risks, and their sensitivities to particular development activities. This ranking or categorisation of areas allows the determination of development activities compatible with specific areas, and the articulation of rules and principles applicable to development taking place in the different areas. Action Plan Map An Action Plan Map shows the site where a demonstration project is planned which is intended to improve the environmental situation at this particular “hot spot”. These maps show clearly the existing situation of a particular site. To help you to keep track of your decisions for your Basic Maps, take a look at Tool 13: Creating a Basic Map. B2 Creating a Basic Map 38 Suitability and Sensitivity Maps, refined by Service Delivery Maps The first map you will create in your EMIS is a Basic Map of your city. The Basic Map, as the name indicates, serves as a basis for any further maps developed in the EMIS. Therefore, the planning process for the Basic Map should be undertaken very carefully, as all the other maps in the EMIS will depend on it. A Basic Map includes main features such as major rivers, main roads, basic landforms and administrative boundaries. As you can see, a Basic Map is like a topographical map, but with only the key features shown. Before the Basic Map is digitized or purchased, several important decisions are necessary. First of all you should check on the existing national mapping standards which should be applied for the EMIS. Then you have to decide which area the system should cover and therefore what scale should be used. Many environmental issues are related to the surroundings of the city, as the source of the problem may lie outside the city boundaries. Therefore the area covered by the system has to be greater than the city per se. Also, the features of the Basic Map do not stop at the administrative boundaries, as rivers and roads extend beyond these artificial constraints. The production of any map is a small project in itself. A carefully structured planning process is necessary in order to avoid surprises while producing maps. When planning and creating maps, remember that a perfect map is not always the most useful map. Timing is important. If a perfect map comes too late to support a decision on a certain issue, it is useless. The project planning steps in Arc View GIS are as follows: • Give your ArcView Project a meaningful name (e.g. basicmap.apr) • Make a clear decision as to what the project will contain in terms of views, tables, charts, layouts and scripts • Do not overload your project, keep it simple and clear • Produce views and layouts both in colour and in black & white
�� Base Map - Basic Map? The Guide: Building an Environmental Management Information System The EMIS Basic Map should not be confused with the term “base map”. In many countries, the term “base map” means a very particular kind of map. For example, in Anglophone countries, planners use the term for large scale topographical maps (e.g. 1:2500). However, the scale of the Basic Map will probably be much smaller (1:10000 up to 1:50000) depending on the area the EMIS will cover.. Features of the Basic Map The Mapping Group will decide which features are important and must be included in the Basic Map. As a rule of thumb, include all the features which are necessary for general orientation in the city: coastline, rivers, roads, landmarks, etc. Even a footpath in the outskirts of the city might be helpful, if there are no other features for orientation. On the other hand, however, do not add too much information, because this might cover up your additional thematic information. Master Layers The Basic Map includes landmarks such as a coastline or rivers, or major roads and administrative boundaries which do not change very often. These features are digitized on master layers, which are used to create both the Basic Map and other maps. The master layers are fixed and will only be updated and changed very carefully. Therefore, you never, ever digitize a river, a major road, the coastline or the boundaries of the city a second time. If a certain section of a river is needed for a new map, you make a copy of the master layer which contains the river network and, in the new layer, you delete all the rivers which you do not need. This approach ensures that landmarks and features match exactly in every map. Or another example: you have finalised digitizing the river network of your city. You start digitizing the layer which contains 39
Page 1 and 2: Sustainable Cities Programme (SCP)
Page 3 and 4: The SCP Source Book Series Building
Page 5 and 6: Introduction and Overview B5.1 Exhi
Page 7 and 8: List of Acronyms EMF Environmental
Page 9 and 10: User’s Guide Introduction and Ove
Page 11 and 12: Part A Introduction and Overview In
Page 13 and 14: Introduction and Overview with it;
Page 15 and 16: Introduction and Overview operated
Page 17 and 18: The SCP project cycle has three mai
Page 19 and 20: Supporting a new urban management a
Page 21 and 22: Introduction and Overview approach
Page 23 and 24: Introduction and Overview derived f
Page 25 and 26: The Guide: Building an Environmenta
Page 27 and 28: Part B The Guide: Building an Envir
Page 39: The seven typical EMIS maps The Gui
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Page 65 and 66: Training of the EMIS staff in Ibada
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Building an Environmental Managemen
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United Nations Human Settlements Pr
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EMIS - UN-Habitat

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