enhancing data quality jérôme ferre société des autoroutes paris-normandie france
DESCRIPTION
Enhancing Data Quality Jérôme FERRE Société des Autoroutes Paris-Normandie France. Quality of Information. Contents. Context. Needs. SAPN Objectives. SAPN Implementations. Conclusion. Context. SAPN : Paris-Normandy Motorway Company. 367 km motorway network high traffic volume - PowerPoint PPT PresentationTRANSCRIPT
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VIKING Workshop Best practices on monitoring
deployment
Enhancing Data Quality
Jérôme FERRE
Société des Autoroutes Paris-NormandieFrance
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VIKING Workshop Best practices on monitoring
deployment
Contents
1. Context1. Context
2. Needs2. Needs
3. SAPN Objectives 3. SAPN Objectives
4. SAPN Implementations4. SAPN Implementations
Quality of InformationQuality of Information
5. Conclusion5. Conclusion
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• 367 km motorway network
• high traffic volume
• access to several urban areas and ports
• weekend destinations:
Deauville, Honfleur, …,
from April to November
• regular traffic jams on Sunday evenings
SAPN : Paris-Normandy Motorway Company
ContextContext
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Quality for Road Network operators (for everyday tasks)
Quality for end users (clients)
End user traffic information services are more and more effective
End users are beginning to pay for value added traffic information
A great quantity of raw data to process in order to enhance new services such as Travel Times, Traffic Forecast, etc.
No more total manual control of the information
A large diversity of medias (VMS, internet, Wap, IVR, Radio 107.7FM ...)
ContextContext
Why deal with quality?
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deployment
SAPN Information network
Collection Processing
Common platform SSA
Services enhancement
Dissemination
Communication centre
ContextContext
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Quality for collection
Quality for raw data
Quality for processing information
Quality for traffic management tools
Quality for traffic information services development
Quality for dissemination
Etc ...
Quality must be along the "Chain" (Collection, Processing, Dissemination)!
NeedsNeeds
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to improve the quality of raw data
to improve processing
to guarantee the availability of traffic management tools
to integrate many types of data and enhance services with a limited number of sources
to guarantee the availability of end user traffic information services
to evaluate the quality of the whole « Chain »
SAPN ObjectivesSAPN Objectives
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VIKING Workshop Best practices on monitoring
deploymentSAPN ImplementationSAPN Implementation
SAPN actions for quality in Data Collection:
Development of new IR radar counting stations with GPRS communication =>
Simple and robust solution (non-intrusive),
Autonomous (Energy and communication),
Facilitated maintenance,
Low costs permit installation of a high density of stations.
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VIKING Workshop Best practices on monitoring
deploymentSAPN ImplementationSAPN Implementation
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deploymentSAPN ImplementationSAPN Implementation
SAPN has established a common platform for collecting traffic and weather data:
Collection of all data coming from different motorway roadside systems, regardless of their nature (Traffic, Weather, Tolls).
Apply processes to raw data from roadside systems in order to guarantee the quality.
Distribution of data from a unique platform to « user client applications ».
Supervision and management of roadside data collection systems. Display of raw information under a single format for different users.
SAPN actions for raw data quality :
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VIKING Workshop Best practices on monitoring
deploymentSAPN ImplementationSAPN Implementation
Collection
Common Platform
Processes
DisplayManagement
Travel timesTraffic and weather forecasts
Distribution
SSA
Supervision
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To guarantee the availability of traffic management toolsSAPN has completed the resilience and robustness of the
core of its traffic management system. To help the TIC operators in the management of events
Development of an Expert System proposing action plans to the operators,
Limitation of manual input, Centralisation of the Alarms and Alerts.
SAPN ImplementationSAPN Implementation
SAPN actions for quality in Data Processing :
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To guarantee the availability of end user traffic information services SAPN has a common and secure dissemination platform
on different medias (Web, Wap, SVI, etc.)
To evaluate the quality on the whole « Chain » All information processed for different media (services) is
tracked, and saved.
SAPN ImplementationSAPN Implementation
SAPN actions for quality in data dissemination :
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Thanks to these actions : SAPN is now capable of tracking the quality of information, Currently 100 % of raw data is checked, The raw data database is complete at 98%, Proving a solid base for information processing and service
delivery, Efficient traffic management. SAPN customers survey shows that 93% of the drivers
judged reliable “traffic information services”
ConclusionConclusion
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The need for quality is very important for traffic management and for end user traffic services
Quality extends from data collection to data dissemination What has been done by SAPN in France could be done elsewhere
in Europe
For SAPN, the implementation of quality control is a first step for enhancing quality:
Quality must be a continuous process
ConclusionConclusion
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Thank you for your attention!
For more information:
Questions ?
Enhancing Data Quality Enhancing Data Quality