Libyan Transportation Infrastructure Inventory · Libyan Transportation Infrastructure Inventory ....
Transcript of Libyan Transportation Infrastructure Inventory · Libyan Transportation Infrastructure Inventory ....
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Libyan Transportation Infrastructure Inventory Ahmed Ahmouda MS GIS Program, University of Redlands
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Country of Libya
Capital: Tripoli
Official language: Arabic
Area: 1,774,440 km2 685,115 sq mi
Population: 6,244,174 (2014)
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Economy
Depends primarily on oil revenues
Oil reserves: The largest in Africa The fifth in the world
(Javier Blas, 2014, retrieved from http://commons.wikimedia.org)
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(Dennixo, 2014, retrieved from http://en.wikipedia.org/wiki/Benghazi)
(Abdul-Jawad Elhusuni, 2012, retrieved from http://en.wikipedia.org/wiki/Tripoli )
Cities
(alitaher70, 2014, retrieved from http://ly.worldmapz.com/photo/4642_en.htm)
Tripoli
Benghazi
Sabha
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Road Networks
• Paved road network is about 34,000 km (2010)
15,000 km main road network 18,000 km secondary and agricultural road network
• Unpaved network is about
3,000 km 50,000 km tracks (Liby, 2012, retrieved from
http://en.wikipedia.org/wiki/Transport_in_Libya)
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What are inventory goals?
• Compile spatial data on transportation infrastructure, such as road center lines, buildings, water body, and facility sites
• Manage transportation infrastructure system
• Support improved planning and decision-making of transportation infrastructure
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Collected and Used Data
• Vector data :- - Road centerlines - Facility sites - Water body - Buildings - Landscape areas - Administrative boundaries
• Raster data :- - Imagery data of small part of Tripoli
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Data Sources
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Conceptual System Design
ArcGIS Desktop
Data
Local Government Information Model
Libya Topographic Basemap
Community Maps Program
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Methods
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Data Managing and Documenting
• Complete missing data attributes
- 550 facility site point names (26%) - 1842 road names (4%) - 13 water body names (9%) - 59 facility polygon site names (3%) - 119 building names (1.3%) - 22 state boundary names (100%) - Speed limit of the roads
- Road classification attributes
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• Localize Arabic labels
- 550 facility site point names (26%) - 1842 road names (4%) - 13 water body names (9%) - 59 facility polygon site names (3%) - 119 building names (1.3%) - 22 state boundary names (100%)
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• Add missing features
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• Developed for the 10.2.1
desktop release of ArcGIS
• Use as the process of :- - Detect feature changes - Matching features - Transfer attributes
Merging Dataset by Using Conflation Tools
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Detect feature changes
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Matching features Generate Rubbersheet Links
Rubbersheet Features
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Transfer attributes
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Migrate Data into Local Government Information Model
• Load data into the feature classes
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• Populate required feature class fields
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• Adding Symbology (Representations)
Administrative area boundary lines
Building footprint
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Incorporate Imagery Data
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Use World Topographic Map Template
Building Basemap
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Level 11
Level 13
Level 15
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Conduct Sample Network Analysis
Closest Facility Route Hospital Service Area
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Google Map vs Network Analysis Results of Project’s Data
Distance = 770 km Driving time = 11 h 8 min Speed = 69.16 km/h Distance = 774 km
Driving time = 7 h 41 min Speed = 100.65 km/h
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Acknowledgement
I would like to thank DigitalGlobe Foundation for the images that they provided me to use in this project
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Thanks Ahmed Ahmouda
MS GIS Program, University of Redlands ahmed_ahmouda @ spatial.redlands.edu