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LINEAR INDIRECT REFERENCE SYSTEMS TO INTERCONNECT DATA IN TRANSPORTATION APPLICATIONS

24/09/2018Linear referencing – EuroSDR – Alain Chaumet

HISTORIC OVERVIEW

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Credited to Francesco di Antonio del Chierico - Ptolemy's Geography (Harleian MS 7182, ff 58–59)

Via Wikimedia

Source wikimedia, article Tabela Peutingeriana

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24/09/2018Linear referencing – EuroSDR – Alain Chaumet

STATE OF PLAY

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DEFINITION OF « LINEAR REFERENCESYSTEM » (LRS)

24/09/2018Linear referencing – EuroSDR – Alain Chaumet

« Linear referencing » Wikipedia article https://en.wikipedia.org/wiki/Linear_referencing

« method of spatial referencing, in which the locations of features are described in terms of measurements along a linear element, from a defined starting point”

1D world, referenced linear elements database

Reversible transformation from linear location to geographic coordinates spatial location (direct location)

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(Id, d)(λ, ϕ) (x, y)

LRS

24/09/2018Titre de la présentation

Advantages

Low segmentation of linear elements

Stable segmentation of linear elements

Allows real time information transfer

Disadvantages

Few easy to use applications

Computing of linear references depend of used databases

Transfer of information from one DB to another is not obvious

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GDF

24/09/2018Linear referencing – EuroSDR – Alain Chaumet

Identified needs at the late 1980s by automotive industry

1996 : first release of GDF 3.0 (ISO 14825:1996) ”for the interchange of digital road related geographic information.”

2004 : GDF 4.0 (ISO 14825:2004)

2011 : GDF 5:0 (ISO 14825:2011). Development since 2001 to 2008

Linear referencing in GDF with v5.0

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INSPIRE

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ROSATTE - EMAPS – OPENLR – TN-ITS

24/09/2018Linear referencing – EuroSDR – Alain Chaumet

2009 : ROSATTE (Road Safety Attributes Exchange Infrastructure in Europe) published ; linear referencing of traffic signs along the road network

2012 : OpenLR : open LR system by Tomtom

2013 : eMaps : enhancement of ROSATTE; available at http://tn-its.eu/documents/

2017 : CEN TC 278 works to integrate ROSATTE and INSPIRE TN. Works for “Intelligent Transport Systems ‐Location Referencing Harmonisation for Urban‐ITS “ : http://www.itsstandards.eu/urban-its/lrh

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LINEAR ROAD LOCATION SYSTEMS

24/09/2018Linear referencing – EuroSDR – Alain Chaumet

ADDRESS : https://adresse.data.gouv.fr/

PK/PR : http://professionnels.ign.fr/bdpr

Alert-C : http://diffusion-numerique.info-routiere.gouv.fr/tables-alert-c-a4.html

AGORA-C : under licence, few usershttps://www.researchgate.net/publication/245561905_AGORA-C_map-based_location_referencing

Open-LR : http://www.openlr.info/

Mapcode : http://www.mapcode.com/

LOCODE : http://www.unece.org/cefact/locode/service/location.html

What3words : http://what3words.com/fr/a-propos/

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ROAD DATA MAINTENANCE

24/09/2018Linear referencing – EuroSDR – Alain Chaumet

On ground roads changes of static data reported in database

Temporal change of the road network (works, plannedevents,…)

Road events (accident, unpredictable event,..)

Key point : time to report changes from ground to final users

Road data changes in consequence of enhancement or model change

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NORMALIZATION

24/09/2018Linear referencing – EuroSDR – Alain Chaumet

ISO 19148 : https://www.iso.org/standard/32566.html

INSPIRE : Generic Network Model (GNM)

Transport Network (TN)

OpenLR : www.openlr.org

DATEX II : https://www.datex2.eu/

TN-ITS : http://tn-its.eu/

CEN TC278 : http://www.itsstandards.eu/urban-its/lrh

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ROAD DATA BASES

24/09/2018Linear referencing – EuroSDR – Alain Chaumet

Eurogeographics : EGM – ERM

Tomtom, HERE, PTV, Inrix, other private providers

National databases by NMCA

Municipalities or counties or regional local databases

atabases

Developping databases for autonomous vehicles

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USE CASES

24/09/2018Titre de la présentation

Road map computing

Re-routing

Traffic management

Travellers and freight transport

Security and safety

Multimodal context

Interoperability needed between all stakeholders of road infrastructures, traffic managers and final users

Data freshness requirements between real time to dailyupdating

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24/09/2018Linear referencing – EuroSDR – Alain Chaumet

WHAT TO DO ?

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LEVELS OF DETAIL

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LEVELS OF DETAIL

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LEVELS OF DETAIL

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LEVELS OF DETAIL

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LEVELS OF DETAIL

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LEVELS OF DETAIL

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ISSUES TO BE SOLVED OVERVIEW

24/09/2018Linear referencing – EuroSDR – Alain Chaumet

Easy to use tools for reversible transformation from linearlocation to (x,y) or (λ, ϕ)

Management of levels of details in road databases

Homogeneous linear referencing at various LoD

Link between map makers and other road infrastructure stakeholders, use of LRS by NMCA

Daily or real time updating ; management of updating processfrom on ground events to data consumer

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