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1
Building Intelligent Transportation Systems
over the Internet Using Publish/Subscribe Model
Sayed Ahmad NaweedSupervisor: Dr. Yokoyama Teruaki
14 November 2015
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Transportation in Afghanistan
World bank: “Afghanistan has one of the worst road systems in the world.”
• Unstandardized road infrastructure
• No advanced traffic technologies
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30 million
1.2 millionAfghanistan Japan
127 million
69 million
Traffic AccidentDeath Rate
per100,000 population
27.82 persons
2.28 persons
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Objectives
• Increase safety– citizens– vehicle
• Transportation efficiency
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Intelligent Transportation Systems (ITS)
Technology for surface transportation to ensure transit efficiency and safety of citizens and vehicles.
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Components of ITS
Data Flow
Physical Entities
The Functions
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Challenges of ITS in Afghanistan
• Construction cost• Computing resource cost
• Unstable network • Unreliable electricity
Physical Entities
Data Flow
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1. Is it possible to use public Internet as infrastructure for ITS?
2. How to deal with unstable network?
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Physical Entity Challenges
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Public Internet as Infrastructure
Public Internet
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1. Is it possible to use public Internet as infrastructure for ITS?
2. How to deal with unstable network?
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Publish/Subscribe Communication Model
• Tightly Coupled• Complex Deployment• Fragile to Fault
• Loosely Coupled• Plug & Play• Fault Resilient
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Our Proposed Model
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Goal
• Design overlay networks over IP for ITS• Building sensor network using MQTT as
application layer protocol.
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Prototyping
Bridge
MQTT Broker #1
MQTT Broker #2
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Results
Subscriber 1 Subscriber 2
Subscriber 3 Subscriber 4
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Thank you