Traffic Information
Analysis of Capabilities and
associated Data Models
Traffic Technology Strategy
(PA Consulting, January 2008)
Strategic
Preparation of
the Network
• Roadworks and pre-planned event management
• Demand Management
• Network Resilience
NETWORK
OPERATOR
CAPABILITIES
Traffic
Operations
• Traffic Management
• Incident Management
Collecting and
Disseminating
Information
• Collecting & Disseminating traveller traffic information
• Collecting & Dissemination operational information
A High Level Capability Map from EA Modelling
Guidelines (derived from Microsoft Motion
Method and HA’s TT Strategy)
A. Customers
1.
C. Suppliers
B. Customer Facing Channel Partners
Develop the
network
5.
3.
Collect
information
E. Financial Providers
(Treasury, PFI)
2.
Plan and
manage the
network
Collaborate
D. Other
Partners
4. Disseminate
information
F. Infrastructure & Compliance
Government: OGD’s, DfT, EU
Layers of Transportation Data
(Source: ArcGIS UNETRANS Data Model)
•
The Events Layer – contains objects such
as vehicles moving across the network.
•
The Routing Layer – contains more
complex features such as “No exit”, e.g. at
the intersection of a bridge and tunnel.
•
The Reference Network Layer – contains
all of the base road data . This data has a
linear spatial representation and has an
underlying topological structure that
defines the connectivity and adjacency of
links in the road network.
Conclusions (1)
• The HA’s Business Capabilities as a
Network Operator are essentially:
• The collection and dissemination of data
• Strategic Preparation of the Network
• Roadworks and pre-planned event management
• Demand Management
• Network Resilience
• Traffic Operations
• Traffic Management
• Incident Management
Conclusions (2)
• The Traffic Information Architecture
(Capabilities) comprises:
• The Unified Road Network Model
• The Reference Network Layer, and
• The Routing Features Layer
• The National State of the Road Network
• The Events Layer
• The Technical Architecture (Capabilities)
•
•
•
•
Geographic Information Systems (GIS)
Service-Oriented Architecture (SOA)
Complex Event Processing (CEP)
Real-time Publish & Subscribe (ESB)
EARM Context
Unified Road
Network Model and
National State of
the Road Network
Road Operator
Capabilities
including the
collection and
dissemination of
data
One
Concept - Many views
Unified Road Network
Model - GIS
National State of the
Road Network - CEP
Skills, projects, etc…...
Infrastructure
Technology
Data
Application
Process
Organisation
Business Vision
2011
2013
2015+
Traffic Information POTI’s
• Process – to be defined
• Organisation – to be defined
• Technologies:
• Geographic Information Systems (GIS)
• Service-Oriented Architecture (SOA)
• Event-Driven Architecture (EDA)/Complex
Event Processing (CEP)
Real-time Publish & Subscribe (ESB)
•
• Information:
• Unified Road Network Model
• National State of the Road Network
Reconciling the Capability Maps
• Capabilities linked by:
• Traffic Data
• Event Data