Welcome to Special Session 13 EuroRoadS − a pan European road data infrastructure ITS World Congress 9 October 2006

Programme Objectives and results Specification framework Evaluation and quality management Results from test activities Deployment of project results

Objectives and results Mia Wallberg & Ulf Sandgren Lantmäteriet, National Land Survey of Sweden

Scope To lay the ground for the creation of a pan-European standardised, seamless, updated and quality assured digital road data infrastructure built on identified user requirements To simplify exchange of digital road data within and between different countries

Why EuroRoadS? Lack of mutual rules regarding the way road data is specified, quality assured, and exchanged Lack of mutual rules regarding conditions and pricing Scarcity in co-operation between the countries Scarcity in co-operation between mapping organisations and national road administrations INSPIRE

Vision 2012 To establish a European wide public road data infrastructure delivering access, through a single portal, to harmonised and quality assured road information for multipurpose use That the EuroRoadS-compliant national road databases will cover the EU25+ by end of That the INSPIRE Directive will, for the European road network, be based on the EuroRoadS specifications and other results.

Principles for EuroRoadS To support collection and maintenance of data within the organisational level where it can be most effectively carried out To make use of existing data and create efficient tools to achieve seamless interoperability between existing data bases To involve all relevant stakeholders Use existing standards Set up efficient quality models Focus on core European road data

Operational goals Identify the business environment and common user groups Provide a detailed description of user requirements Develop a road data specification framework Provide processes for quality control Develop a prototype and carry out tests Propose implementation solution Develop exploitation plan

Business environment Navigation & Routing Mobility and Society planning Traffic management Traffic & Trip Information Emergency services and Disaster planning Safety (including ADAS) Asset Management Fleet, freight, logistics management Road charging (tolling) Military and Security planning

User requirements Data structure Data content Data quality & quality assurance - data access - handling of changes & updates

Road network information model Core European road data (content) Quality model Road network exchange model Road network exchange format Metadata catalogue Terminology catalogue Specification framework

INSPIRE – Framework Directive I.General provisions II.Metadata III.Interoperability of spatial data sets and services IV.Network services V.Data-sharing and re-use VI.Coordination and complementary measures VII.Final provisions

Road data and INSPIRE Road data as basis for measurement of traffic noise, pollution & energy consumption management & monitoring of traffic road tolling & pricing transport planning emergency & security

EuroRoadS contribution to INSPIRE Finding the right balance between far reaching harmonisation and making use of existing data Focus on core European road network data & create efficient solutions Create efficient tools to achieve interoperability Involve all relevant stakeholders in the entire process Set up efficient quality models Use existing standards Transportation network Hydrography Topography Administrative boundaries xxx INSPIRE EuroRoadS

Quality control The EuroRoadS quality models contains all sub-elements of ISO but with some extensions.

Demonstration – verifying the results Demonstrate a complete data chain from acquisition to final services: - data capture & maintenance, - data processing, - showcase ”Speed Advice”, - metadata server Demonstrate and validate the use of the road data specification Support dissemination and networking through concrete implementation results

Plans for implementation and exploitation Recommendations to: support a rapid creation of an infrastructure for European road data support a wide use of the European road data infrastructure facilitate services built on it Address structures, mechanisms and arrangements needed.

Ulrich Haspel Bavarian Board of Building Specification Framework

Objectives for the specification framework Increase and simplify the possibility for many different parties to access public core road data. –Core road data is that data that is “static”, and is of interest to many different user groups. –The above goal describes the mechanism to enable the exchange of core road data, both within and between different countries and organizations. Achieve a harmonization of core road data within Europe. The aim of the work should be to prepare for a European standard

Work Directives Product models and exchange formats should be based on TC211/ISO (the international standard for geographical information) The road data exchange format must be able to handle both whole data sets and just data changes It is important to solve border linking (the merging of adjacent road datasets)

The framework documents –Road data network information model (conceptual model) –Core European road data specification –Metadata catalogue (conceptual model) –Quality model –Road network exchange model specification –Road network exchange format specification –Terminology catalogue All framework documents are available at

EuroRoadS Data Data Maintenance Content National/Regional Road Databases Information Commercial Road Databases Service Different applications Attributes Road data Road Users Service x Attributes Road Network yyyy xxxx Road Owners Application A Application B Map Producers Information Refinement Chain

Identified requirements Road network model requirements: –Support existing road data solutions (at public authorities) Topology/geometry and only geometry Linear referencing and geometry attributes Validity and snapshot Stable identities when changes occur (linear referencing) –Support possibility to supply attributes only, using linear referencing (a published road network ID = common reference system)

Solution The EuroRoadS project decided to develop a flexible road network model: –The advantage is that many organisations can support the EuroRoadS model with relatively little effort (mapping) –The disadvantage is that the EuroRoadS file can describe a road network in many different ways.

Three types of road network attributes and features: 1.Mandatory attributes Data that must be given in an exchange file 2.Optional attributes and features Optional data that have common descriptions 3.User defined attributes and features Possibility to define and supply unique data Definitions have been reused from GDF and RADEF, except for Speed Limit that has used definitions from the Speed Alert project. Road attributes and features

Solution for Border Node Information –Agree on geometry for the border (neighbours need to communicate and agree with each other) –Identify roads that cross the border –Add a node attribute to each border node

Mandatory attributes –Geometry –Universal ID –Form of Ferry –Form of Node –Form of Way –Functional Road Class

Optional attributes – Addresses – Access – Border Node Information – Flow Direction – Manoeuvre – Grade Separated Crossings – Mountain Pass – Number of Lanes – Junction Information – Object Identification – Obstruction – Restrictions for Vehicle – Road Length – Road or Street Name – Road Number – Road Width – Road Surface – Seasonal Restrictions – Services – Speed Limit – Structure – Steep Gradient

Steps to take An organisation which would like to supply a EuroRoadS exchange file, needs to: –Convert existing data in accordance to the EuroRoadS framework specification (mapping data) –Adjust data at borders (“talk to the neighbours”) –Transform coordinates to the common coordinate system (ETRS 89) The efforts depend on how existing data is structured and stored!

Benefits of the framework –Facilitates the exchange of road data –Offers a model for quality assurance –Offers a common metadata catalogue –Offers a common terminology catalogue –Minimises the number of exchange formats to support –Makes it easier to combine road data from different sources –Facilitates combinations of road data with other data themes (based on ISO ) –Offers a common, standardised definition of road network and road attributes

Evaluation and quality management Evaluation and quality management of data flow and processes from acquisition and updating to be used in final applications Thomas Wiltschko University of Stuttgart

Motivation New applications require enhanced content with high and assured quality New contents exist partly in administration authorities –Closeness to public data sources enhances up-to-dateness, quality, and coverage –Integration of quality management concept to assure quality of road data

Quality assurance Quality management within the public-privat information chain Information chain Provision of quality assured data in applications needs a quality management within the entire information process EuroRoadS interface capturing commercial road data (road network) Data provider Content provider Information provider Service provider public road data (e.g. speed limit) public road data (e.g. speed limit & road) application database capturing processing... integration conversion = fixed set of inherent quality characteristics

Requirements for quality management concept A uniform and understandable Quality description –suitable for each actor Evaluation methods to determine a quality value –allows quality determination with reasonable effort Quality assurance measures to realize processes fulfilling the quality requirements –integration of efficient error avoidance and error control mechanisms Documentation of quality values and processes –for internal and external purposes

Structure of the quality model Fixed set of inherent quality characteristics ensures uniform quality description Various quality parameters ensures necessary flexibility to describe heterogeneous data types formulated by Quality characteristic Qualitäts- parameter Quality parameter value Qualitäts- parameter Quality parameter Quality phenomenon describe make concrete quantify determine Quality evaluation method Qualitäts- forderung Quality requirement

Metadata for documentation and exchange of quality Contains quality description, quality values, used evaluation methods and explanations of data flow Application Metadata Server (PTV) Data Metadata XML/GML- based Exchange Format (Vägverket) ISO EuroRoadS Metadata Catalogue Subset Quality User can check whether data fulfil his quality requirement Quality values can be transferred within the entire information chain

Speed limit capturing and maintenance (test site Bavaria) –Explicit SL settings based on road attribution (due national laws) –Motorway data sheets –Queries of responsible personnel –Enquiries executed by road surveillance centres –Use of photo database –Field surveying (with GPS) Data entry via editor (VISUM)

Quality evaluation of data capturing in test site Bavaria Implicit speed regulation assures completeness Motorway data sheets deliver high quality with less effort Data source Degree of correctness in relation to GPS survey Geometric accuracy Effort in days per 100 km Highways Federal roads State roads Community roads Implicit speed regulation 71 %86 %87 %85 % m0.01 ABD-N list 100 % m0.1 Local expert knowledge % m0.5 Authorities’ survey paper -91 %90 % m1.4 Photo database -93 %92 % m1.3 GPS survey (Reference) 100 % m1.8

Rate of changes of speed limit regulations in test site Bavaria Biannual up-date ensures rate of up-to-dateness > 98.5 % Most changes in spring and summer About 80 % of temporary speed limit regulations have duration less than 3 months biannual update

Net-Matching variants concerning corridor width for test site France: FRA3 = 80 m; FRA4 = 15 m Impact of data processes on quality Data processes may influence data quality, for example –fuzzy procedure (e.g. net-matching) –generalisation procedure (e.g. coordinate thinning) Impact on quality depends on –Algorithm –Parameter settings –Quality of input data Impact can be evaluated by comparison –of variants –input and output Less effort due to an internal evaluation method

Summary EuroRoadS quality concept is a profile, guideline, and case study of ISO series taking into consideration the data user side demands Quality management is firstly connected with cost, but new markets can be supplied with quality assured road data EuroRoadS delivers quality management concept for data providing processes to assure data quality within the entire information chain from supplier to user

Recommendations EuroRoadS quality management concepts support an implementation step-by-step –Analysing your existing processes and development of additional quality assurance measures –Testing quality assurance measure by simulation before implementation –Determine your data quality by using knowledge and internal methods –Document your processes and quality values –Extend your quality management step-by-step

Demonstration Lessons from using the EuroRoadS Specification Framework Michael Landwehr PTV AG

Objectives Demonstrate and validate the use of the EuroRoads specification framework –experiences with transfer and use of similar data from different public sources –experiences with metadata and related services Demonstrate a complete data chain from data acquisition to final services –validation of EuroRoadS quality framework –show case for a concrete data chain from end to end with one application operating in different test fields based on the respective supplier’s data

Data and information chain Data acquisition Local data- bases EuroRoadS Framework Application specific format Application & service Public Sector Private Sector Data transfer/use & meta-data services Exemplaric data chain & services

Demonstration area Norway National Road Data Base Sweden National Road Data Base Germany INTREST- Database France IGN/DB Uni Database Austria TIRIS Road layer Norway National Road Data Base Sweden National Road Data Base Germany INTREST- Database France IGN/DB Uni Database Austria TIRIS Road layer Norway National Road Data Base Sweden National Road Data Base Germany INTREST- Database France IGN/DB Uni Database Austria TIRIS Road layer Norway National Road Data Base Sweden National Road Data Base Germany INTREST- Database France IGN/DB Uni Database Austria TIRIS Road layer Norway National Road Data Base Sweden National Road Data Base Germany INTREST- Database France IGN/DB Uni Database Austria TIRIS Road layer Norway National Road Data Base Sweden National Road Data Base Germany INTREST- Database France IGN/DB Uni Database Austria TIRIS Road layer Norway National Road Data Base Sweden National Road Data Base Germany INTREST- Database France IGN/DB Uni Database Austria TIRIS Road layer Norway National Road Data Base Sweden National Road Data Base Germany INTREST- Database France IGN/DB Uni Database Austria TIRIS Road layer Norway National Road Data Base Sweden National Road Data Base Germany INTREST- Database France IGN/DB Uni Database Austria TIRIS Road layer Norway National Road Data Base Sweden National Road Data Base Germany INTREST- Database France IGN/DB Uni Database Austria TIRIS Road layer Norway National Road Data Base Sweden National Road Data Base Germany INTREST- Database France IGN/DB Uni Database Austria TIRIS Road layer Norway National Road Data Base Sweden National Road Data Base Germany INTREST- Database France IGN/DB Uni Database Austria TIRIS Road layer Norway National Road Data Base Sweden National Road Data Base Germany INTREST- Database France IGN/DB Uni Database Austria TIRIS Road layer Norway National Road Data Base Sweden National Road Data Base Germany INTREST- Database France IGN/DB Uni Database Austria TIRIS Road layer Norway National Road Data Base Sweden National Road Data Base Germany INTREST- Database France IGN/DB Uni Database Austria TIRIS Road layer Norway National Road Data Base Sweden National Road Data Base Germany INTREST- Database France IGN/DB Uni Database Austria TIRIS Road layer Norway National Road Data Base Sweden National Road Data Base Germany INTREST- Database France IGN/DB Uni Database Austria TIRIS Road layer Norway National Road Data Base Sweden National Road Data Base Germany INTREST- Database France IGN/DB Uni Database Austria TIRIS Road layer Sweden (SRA, NLS): NRDB Norway (SV): France (IGN): BD Uni database Germany (Bavaria, OBB): INTREST-Database Austria (BEV): Cooperation with Tirol state data base (TIRIS)

Demonstration components 1.Data capture & maintenance (test bed Bavaria) 2.EuroRoadS data supply and processing 3.End-user application: SpeedAdvice 4.Metadata server and services

Information model 50 0,0652 0, SpeedAdvice application EuroRoadS data supply Austria, France: Sweden, Norway: 50 Bavaria:

Data supply through EuroRoadS framework Austria, France: –Network (geometrical link-description only) –1:1 speed limit reference to link direction Bavaria: –Network (geometry + topology) –1:1 speed limit reference to link direction Sweden, Norway: –Network (geometry + topology) –Route (1:n aggregation of links) –Link reference to route, between start- and end-offset from the route start ►Information model offers different levels and possibilities to suppliers for delivery of their (network and speed limit) data SpeedAdvice requires –Network (geometry + topology) with routing capabilities –1:1 speed limit reference to link direction

Data processing – two options 1.‘Selective’ use of EuroRoadS content: – EuroRoadS provided speed limit data are transferred from supplier map to third party map for the application –Low level network description sufficient –Demonstration for France, Austria 2.‘Exhaustive’ use of EuroRoadS data set: –Transferred data (network + speed limits) are used in final application –More complete network description needed than for ‘selective’ use scenario –Demonstration for Sweden, Norway, Bavaria

Processing steps ‘Selective’ use ‘Exhaustive’ use

Main processing steps: Sweden/Norway –Pre-processing: invalid links, generalisation of neighbouring, identical speed limits –Splitting of links at speed limit change –Transfer of speed limit reference: linear reference to route to a direct link reference –Creating the topological connection at borders (border linking) –Coordinate thinning split points

Main processing steps: Austria/France –Processing of GDF data –Net-matching: identification of corresponding links with target road network (from GDF) –Transfer of speed limit reference to target data set: Approximate transfer ‚Precise‘ transfer

Lessons (I) EuroRoadS framework documents generally of high quality, documentation is consistent Concepts of the information model are well described EuroRoadS exchange format (GML) for complete data sets covering large areas leads to very large data volumes. –Requires special techniques to handle it –good for transfer of changes only

Lessons (II) Information model for network description offers a lot of flexibility and liberty for usage/interpretation by supplier; –Low entry barrier for supplier with regards to data model and mapping issues –Currently harmonisation effort on the data user side if different suppliers are used as input –Balance for harmonisation of supply side and use side efforts to be found Border linking (Sweden/Norway) is required if routing is needed: –EuroRoadS information model provides good basis to resolve ‚topological‘ linking

Processing steps and effort depends on –The supplier information model and the target application model Supplier model differs for demonstrator for each supplier! –Use scenario: selective vs. exhaustive Selective requires some reference transfer technique: Net-matching introduces some errors –Desired quality: approximate vs. ‚precise‘ transfer of references –Data user efforts are increasing as soon as provided data have to be changed for the use in the final application, e.g. link splitting (for linear reference transfer or precise net-matching transfer) Lessons (III)

Deployment of project results Implementation Exploitation Project results Vision

Vision 2012 A European wide harmonised standardised seamless updated and quality assured road data infrastructure covering EU25+  EuroRoadS will not be implemented overnight

Benefits from the results Maximising the use and knowledge of public road data Contribute to ITS developments & projects –ADAS applications (Advanced Driver Assistance Systems) –Location-based services & navigation –Commercial vehicle applications Easier cross border cooperation and networking with a common infrastructure Support development of road databases in Europe –Exchanging data –Building up a road data infrastructure - ‘starting’ countries –Common Specification Framework –EuroRoadS as a road data standard

Examples of early adoption INSPIRE Cross border applications –Norwegian – Swedish border cooperation Traffic planning Permissions for transport of heavy and dangerous goods –Barents GIT project Harmonised road data infrastructure for the Barents Region (Norway, Sweden, Finland, Russia) Data available in EuroRoadS exchange format from a Barents GI portal Exchange of road data –Norwegian Road Administration Exchange of road data between NRA and the municipalities –EuroRoadS’ Exchange model and format and –Quality model Trans-European road Network –TERN (Trans-European road network) To facilitate the data exchange related to TERN

Recommendations Step by step approach –Best practice –Make gradual implementation and changes at a national level –Short term targets –Organisational cooperation –Cross border cooperation

Future steps Promote EuroRoadS take-up –In data supplier communities - CEDR, EG –In customer communities - ERTICO –By European Commission - INSPIRE Ensure continuity of basic support services –Provide user support, help desk, bug reports… –Documentation: best practice examples, supplier & user guides Promote implementation of the framework in commercial GIS Establish quality certification & compliance testing procedures Specification maintenance –Bug fixes, enhancements, extensions Promote standardisation of EuroRoadS results Dissemination & liaison: –Web site, newsletters, conferences, project links, R&D requirements…

Objectives for EuroRoadS Forum Promote the implementation Provide a forum for collaboration Support, correct and improve the framework Support suppliers and users e.g. metadata Represent the EuroRoadS achievements in the INSPIRE process Identify needs for further R&D Develop guidelines and distribute information on best practice Develop a commercial environment aiming to facilitate a widespread market adoption of EuroRoadS compliant data

Organisation of EuroRoadS Forum Agree on aims and terms in a common Memorandum of Understanding Define central support services Agree on distribution of tasks

Bringing EuroRoadS forward Invitation to providers and users of public/private sourced road data to a strategic meeting on 30 November in Malmö, Sweden Agreement of content of the MoU Organisation of a EuroRoadS Forum to promote and exploit the results Undertakings from interested parties