The five basic components of a Geographical Information …...The five basic components of a Geographical Information System People Software Data Hardware Analysis A Geographical Information
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The five basic components of a Geographical Information System People Software Hardware Data Analysis
The five basic components of a Geographical Information System
People
Software
Hardware Data
Analysis
Presenter
Presentation Notes
A Geographical Information System is a system designed to analyze and present spatial or geographic data. There are 5 components: People (to capture the data) Software (to manipulate the data) Hardware (to host the software) Data (the geographical information) Analysis (to produce information from the data)
Web GIS online
UNECE
Public visitors Competent Authority
GIS Server
GIS client software
UNECE
GIS architecture - UNECE Transport Division
Presenter
Presentation Notes
In the UNECE Transport Divison we currently have a desktop GIS software, but in the forthcoming month, a complete GIS solution will be built. This solution will include: A GIS database (to store the data) A GIS Server (to give access to the database to ECE staff) A web server to disseminate selected GIS data on the web
GIS projects / applications - UNECE Transport Division
Euro-Asian Transport Links
Blue Book (AGN) Web Application
Road and Rail Census
Legal Instruments Web Application
Presenter
Presentation Notes
We already use GIS for different projects and applications: The Euro-Asian Transport Links which gives access to geographical information related to the main Euro-Asian transport corridors The Blue Book web application which provides navigational characteristics of E waterways The Climate Change Adaption project which uses road and rail census data The online interactive maps on the UN Legal Instruments on Transport
Large variety of data sources with heterogeneous quality
networks are not always complete
update frequency varies
geographic accuracy varies
Presenter
Presentation Notes
There are sometime limitations to the use of geographical data The transport networks are not always complete, some parts are up to date, others are not, depending on national data availability and communication The update frequency can vary a lot The geographic accuracy can vary also, making data usable only at certain scales
Source Geographical data available Overview
UNECE Blue Book
E Waterways E Waterways sections E Ports Scale: world to region
UNECE EATL
EATL corridors data Ports Inland waterways Roads (E roads when applicable) Rails (E rails when applicable) Scale: world to region
UNECE Road and rail census
Roads (E roads when applicable) Rails Data such as trains/day, infrastructure… Scale: world to region
Presenter
Presentation Notes
The ECE data sources are based on national contributions in the framework of different projects
Constraints for geographical data collection (can be time consuming, need a minimum GIS expertise)
How data is used (UNECE reports and publications)
How data is disseminated (charts, maps, online databases)
Data collected through questionnaires
Presenter
Presentation Notes
Collecting geographical data through questionnaires is not an easy task. With the forthcoming UNECE GIS, hopefully we will have new tools that will allow participants to share their geographical data more easily. It is also important to know what will be the use of this data: the way it will be disseminated may determine the format of the questionnaires (is it for making very detailed online maps, or just for producing a map in a publication, and so on).
Agreed definitions for each variable
Collection process (national focal points, frequency, automated forms…)
Geographical data collection needs:
Presenter
Presentation Notes
It is also very important to agree on the definitions of the different variables used. If the data has to be collected from member States, the data collection process should be also clearly defined (unless it is only for a one-shot project): a list of focal points should be maintained, the frequency and the deadline well defined, and so on.
Road and Rail Census data used for the Climate Change Adaption project
• Identify transport networks in the ECE region vulnerable to climate change impacts, if possible in GIS;
• Use/develop tools and good practices to address potential extreme hazards;
• Identification and analysis of case studies on the potential consequences of the climate change impacts.
Prepare appropriate policy actions Exchange information about best practices for climate change adaptation
Group of Experts on Climate Change impacts and adaptation for transport networks and nodes (WP.5/GE.3)
Presenter
Presentation Notes
The Road and Rail Census data in particular is used in the framework of the Climate Change Adaption project. A Group of Experts on Climate Change impacts and adaptation for transport networks has been set up. Its goal is to prepare appropriate policy actions and exchange information about best practices for climate change adaptation. A GIS toll is used for the identification of the transport networks vulnerable to climate change impacts GIS.
Road and Rail Census: geographical data
Year Geographical data 2000 Roads 2005 Roads and rails 2010 - 2015 Only for some countries
• The road and rail E networks (of international importance) still need to be completed
• Geographical precision: regional
Road and Rail Census data used for the Climate Change Adaption project
• Maps of the traffic data for the road and rail E network • Geographical precision: regional
Road traffic census data used for the Climate Change Adaption project
Rail traffic census data used for the Climate Change Adaption project
