GIS-T
•Why GIS-t
•GIS as information base
•Information management
•Information management, harmonisation
integration, comparision and analysis
•As an analytical tool
• ESDA - exploratory spatial data analysis
• addition to topological analysis
•As an decision support system
Some transport analysis models
• SPT (shortest path) algortithm A*
• VRP (vehicle routing problems) multiple depots, time
windows, work hours
• ARP (arc routing problem) garbage, mail, snow
• SP (spatial interaction) travel demand
– OD matrix (origin – destination) – Cartographic algebra
– RDBMS not designd to handle data pairs
• Network flow models
– MCFP - Minimum cost flow problem
– Facility location models
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MAUP Modifiable areal unit problem
TAZ Transportation analyzis zone design
GWR Geographically weighted regression
ANN artificial neurological networks
Equilibrium travel demand modeling
Activity-based approaches
Time-space accessibility
N-PPA network potential path area algorithm
– Expensive - GPU
Strategies
• Using different sofware linked to each other
– GIS – Matlab /Simulink – knowledge based -AI
• COM Using software components
– Lose coupling
– Hard coupling
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Middle ware
OGC OpenGIS consortium
Macro languages (AML)
OOP Object –oriented programming
– Object = state + functionality
Future for GIS in GIS-t
• GIS as a central component
– Space makes sence
– Integrate between domanes
– A maps say more than thousand words
• Cognition – communication – formalism
– Visualisation of the result – owerview at a glance
• Visual realism
• Dynamic and temporal visualization
• Virtual and Enhanzed reality
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LUT Land use transportational model
Multisector models
Urban economic models
CUF California Urban Features
ROW right-of-way planning
Corridor location problem
Some important notes
• Data capture are all the methods to get data into a database.
Mention at least five methods to capture geographical (spatial) data
for transport applications.
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What spatially referred attribute data are relevant in the transport
service application of your choice and how to integrate those into
the system?.
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• Many important benefits in a GIS for transport service but also
many problems in implementing such a system.
• Cost/ Benefit in GIS is depending on how many users that are
involved and how they take advantage of the data and the
technology.
• There are many different ways to analyse spatial data in a
transport/business/service GIS
• Logistics and supply chains are important in modern information systems.
• Business systems and systems for transports and production can be
integrated and merged of information in a GIS.
• CAD and a traditional Transport planning system and GIS based solutions
differ
•In the way to store and analyse data and handle different transport
problems.
•Network Flow and Facility Location needs information from several data
sources.
•Transportation, Environment and Hazards are important areas for analysis
in transport/business/service GIS. This is one argument for using GIS and
not other Software/solutions