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Thursday, 15th and Friday, 16th of March 2007, Hamburg, Germany
Best practices in monitoring deployment
workshop
Future Communication between
Outstations and Centres –
A Concept for
the German Motorways
Eike Pögel
Heusch/Boesefeldt GmbH
Dr. Lutz Rittershaus
Federal Highway Research Institute - BASt
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Thursday, 15th and Friday, 16th of March 2007, Hamburg, Germany
Best practices in monitoring deployment
workshop
Implementation of an ITS-system in Germany
since about 30 years.
1975: VRZ Aichelberg
2005: VZ Hessen
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Eike Pögel, Heusch/Boesefeldt GmbH
Dr. Lutz Rittershaus, BASt
Future Communication between Outstations and Centres –
A Concept for the German Motorways
Thursday, 15th and Friday, 16th of March 2007, Hamburg, Germany
Best practices in monitoring deployment
workshop
Average daily traffic (ADT) on German
highways.
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Eike Pögel, Heusch/Boesefeldt GmbH
Dr. Lutz Rittershaus, BASt
Future Communication between Outstations and Centres –
A Concept for the German Motorways
Thursday, 15th and Friday, 16th of March 2007, Hamburg, Germany
Best practices in monitoring deployment
workshop
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Programme on traffic management
for the federal motorways in Germany.
Current and
planned (till 2007)
systems:
1.200 km
Section Management
1.700 km
Network Management
Eike Pögel, Heusch/Boesefeldt GmbH
Dr. Lutz Rittershaus, BASt
Future Communication between Outstations and Centres –
A Concept for the German Motorways
Traffic Control System Germany.
Thursday, 15th and Friday, 16th of March 2007, Hamburg, Germany
Best practices in monitoring deployment
workshop
Regional
Traffic Information
Centre
Communication interface to
external Systems (e.g. Datex)
Foreign
Traffic Centre
Directives
Traffic Control Centre
TCC
SC
OS
SC
OS
SC
OS
Instructions for the
Equipment of Traffic
Control and Sub
Centres (MARZ),
"AK VRZ"
Sub-Centre
Outstation
Technical
Specifications for
Outstations (TLS)
Detectors, Variable
Message Signs, ...
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Eike Pögel, Heusch/Boesefeldt GmbH
Dr. Lutz Rittershaus, BASt
Future Communication between Outstations and Centres –
A Concept for the German Motorways
Interface between Outstations and TCCs.
Thursday, 15th and Friday, 16th of March 2007, Hamburg, Germany
Best practices in monitoring deployment
workshop
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Roadside
Outstation
Traffic Control
Centre /
Sub-Centre
TLS: Technische Lieferbedingungen für Streckenstationen /
Technical Specifications for Outstations
Basic idea of the TLS:
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to define functional groups for roadside equipment,
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to standardise the interfaces and communication protocols,
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to create a common data modelling,
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to make the equipment of different suppliers compatible,
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to define and test performances and
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to allow open and clear tendering and system operation.
Eike Pögel, Heusch/Boesefeldt GmbH
Dr. Lutz Rittershaus, BASt
Future Communication between Outstations and Centres –
A Concept for the German Motorways
Structure of TLS.
Thursday, 15th and Friday, 16th of March 2007, Hamburg, Germany
Best practices in monitoring deployment
workshop
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FG 0: Reserved for testing purposes
FG 1: Traffic data acquisition
FG 2: Weight in motion
FG 3: Environmental data acquisition
FG 4: Variable message sign and variable direction sign control
FG 6: Operational messages and control
FG 7: Control of external systems
FG 8: Speed control systems
FG 9: Ramp metering
FG 10 to 127: Reserved for subsequent universal definitions
FG 128 to 253: Res. for manufacturer defined function groups
FG 254: System control (internal)
FG 255: Reserved for special applications
Eike Pögel, Heusch/Boesefeldt GmbH
Dr. Lutz Rittershaus, BASt
Future Communication between Outstations and Centres –
A Concept for the German Motorways
Example of an Outstation.
Thursday, 15th and Friday, 16th of March 2007, Hamburg, Germany
Best practices in monitoring deployment
workshop
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Eike Pögel, Heusch/Boesefeldt GmbH
Dr. Lutz Rittershaus, BASt
Future Communication between Outstations and Centres –
A Concept for the German Motorways
History of TLS.
Thursday, 15th and Friday, 16th of March 2007, Hamburg, Germany
Best practices in monitoring deployment
workshop
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Preliminary Issue in 1988,
content: Traffic data acquisition
Issue in 1990 with additional features on
communication
Issue 1993: first complete edition, compulsory for
roadside traffic control equipment
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Main Draft in 1997
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Issue 2002: optimised, revised edition
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Issue 2007 in preparation: new communication
technique and additional features
Eike Pögel, Heusch/Boesefeldt GmbH
Dr. Lutz Rittershaus, BASt
Future Communication between Outstations and Centres –
A Concept for the German Motorways
Constraints of todays TLS
Thursday, 15th and Friday, 16th of March 2007, Hamburg, Germany
Best practices in monitoring deployment
workshop
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Communication restricted by infrastructure of the 80´s
Partyline
1200 Baud
datagram size <256 bytes
Research projects: Recommendations for a new TLS
 Communication technology
 Technical
 Organizational
Eike Pögel, Heusch/Boesefeldt GmbH
Dr. Lutz Rittershaus, BASt
Future Communication between Outstations and Centres –
A Concept for the German Motorways
TCP/IP
Thursday, 15th and Friday, 16th of March 2007, Hamburg, Germany
Best practices in monitoring deployment
workshop
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Recommendation: „TLS goes TCP/IP“
Todays standard communication protocol
Austrian ASFiNAG: Adoption of TLS, but with TCP/IP
extensions
NTCIP (USA) based on TCP/IP (UDP)
In-field communication: PROFIBUS -> PROFINET
TT: DATEX(2)
Eike Pögel, Heusch/Boesefeldt GmbH
Dr. Lutz Rittershaus, BASt
Future Communication between Outstations and Centres –
A Concept for the German Motorways
Hardware Infrastructure
Thursday, 15th and Friday, 16th of March 2007, Hamburg, Germany
Best practices in monitoring deployment
workshop
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With introduction of TCP/IP broad range of technologies
available
 Fiber optics
 Twisted pair
 WLAN
 GSM/GPRS
Hard- and software vendors
Conclusion: Motorway communication infrastructure as
network
Eike Pögel, Heusch/Boesefeldt GmbH
Dr. Lutz Rittershaus, BASt
Future Communication between Outstations and Centres –
A Concept for the German Motorways
Data Modelling (1/3)
Thursday, 15th and Friday, 16th of March 2007, Hamburg, Germany
Best practices in monitoring deployment
workshop
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TLS-ISO/OSI Layer 7
Actual TLS-datagramm description
 Bits&bytes
 Paperwork, not toolbased
 Ambigous
 Error-prone interpretation
 Weak modelling
Eike Pögel, Heusch/Boesefeldt GmbH
Dr. Lutz Rittershaus, BASt
Future Communication between Outstations and Centres –
A Concept for the German Motorways
Data Modelling (2/2)
Thursday, 15th and Friday, 16th of March 2007, Hamburg, Germany
Best practices in monitoring deployment
workshop
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Tool: UML as platform independent modelling
language
TLS-datagrams as UML packages and class
diagrams
TLS procedures as UML sequence diagrams
UML profiling for various aspects possible
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XML profiles
SOA profiles (e.g CORBA, SOAP)
„old TLS“ profile (->backward compatibility)
Eike Pögel, Heusch/Boesefeldt GmbH
Dr. Lutz Rittershaus, BASt
Future Communication between Outstations and Centres –
A Concept for the German Motorways
Security aspects
Thursday, 15th and Friday, 16th of March 2007, Hamburg, Germany
Best practices in monitoring deployment
workshop
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TCC/SC networks firewalled
IP communication between outstation and TCC/SC
Outstations become part of TCC/SC network
Potential breach of security
Recommendation: Tunneling (ssh/ssl)
Point-to-point communication: Portforwarding
Strong encryption: Verifies data integrity
Public-private-key authentication
Eike Pögel, Heusch/Boesefeldt GmbH
Dr. Lutz Rittershaus, BASt
Future Communication between Outstations and Centres –
A Concept for the German Motorways
Migration Strategy
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TCC/SC Applications
network
infastructure
application level
gateway
TLS-OSI SOAP/
1-7
TCP/IP
field bus /
party line
Thursday, 15th and Friday, 16th of March 2007, Hamburg, Germany
Best practices in monitoring deployment
workshop
TLS-OSI
1-7
SOAP/
TCP/IP
outstation
functional
groups
outstation
applications
Eike Pögel, Heusch/Boesefeldt GmbH
Dr. Lutz Rittershaus, BASt
Future Communication between Outstations and Centres –
A Concept for the German Motorways
Consistent TLS-communication concept
Thursday, 15th and Friday, 16th of March 2007, Hamburg, Germany
Best practices in monitoring deployment
workshop
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Concept based on TCP/IP
OTS communication hard- and software
Exact data modelling
Backward compatibility: Migration concept allowing for
integration of old and new TLS infrastructure
Recommendation: Concept study of a TCP/IP/SOA(P)based TLS system
Eike Pögel, Heusch/Boesefeldt GmbH
Dr. Lutz Rittershaus, BASt
Future Communication between Outstations and Centres –
A Concept for the German Motorways
Creation of TLS.
Thursday, 15th and Friday, 16th of March 2007, Hamburg, Germany
Best practices in monitoring deployment
workshop
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The further development of the TLS is be done by the AK TLS
(Working Group TLS).
This working group consists of representatives from:
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Road operators (German road administrations)
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Sensor and VMS manufacturer
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Traffic control centre manufacturer
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Engineering and consulting companies
Eike Pögel, Heusch/Boesefeldt GmbH
Dr. Lutz Rittershaus, BASt
Future Communication between Outstations and Centres –
A Concept for the German Motorways
Updating of TLS.
Thursday, 15th and Friday, 16th of March 2007, Hamburg, Germany
Best practices in monitoring deployment
workshop
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A modular loose-leaf document system allow the actualisation
and release of single chapters without releasing a complete new
edition.
Updates and corrections should in the future be initiated by any
member of the TLS community using a RFP/RFC procedure,
moderated by BASt.
Eike Pögel, Heusch/Boesefeldt GmbH
Dr. Lutz Rittershaus, BASt
Future Communication between Outstations and Centres –
A Concept for the German Motorways
Thursday, 15th and Friday, 16th of March 2007, Hamburg, Germany
Best practices in monitoring deployment
workshop
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Thank you
for your attention
Eike Pögel
Dr.-Ing. Lutz Rittershaus
Heusch/Boesefeldt GmbH
Transport Telematics
Tempelhofer Straße 4-6
52068 Aachen
Germany
Federal Highway Research Institute
Telematics, Traffic Management
Brüderstraße 53
51427 Bergisch Gladbach
Germany
[email protected]
[email protected]
Eike Pögel, Heusch/Boesefeldt GmbH
Dr. Lutz Rittershaus, BASt
Future Communication between Outstations and Centres –
A Concept for the German Motorways