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The story behind Michelin Clermont-Ferrand city map #70 Christian Quest – [email protected] - @cq94

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Page 1: The story behind Michelin Clermont-Ferrand city map #70 · The story behind Michelin Clermont-Ferrand city map #70 ... Manual redrawing : ... All names need to be on the map ! Final

The story behind MichelinClermont-Ferrand city map #70

Christian Quest – [email protected] - @cq94

Page 2: The story behind Michelin Clermont-Ferrand city map #70 · The story behind Michelin Clermont-Ferrand city map #70 ... Manual redrawing : ... All names need to be on the map ! Final

Michelin and road maps● 1905 : First map published

for the Gordon Benett race

...around Clermont-Ferrand

● 2001 : ViaMichelin brings

all Michelin maps online

(3 years before Google)

Page 3: The story behind Michelin Clermont-Ferrand city map #70 · The story behind Michelin Clermont-Ferrand city map #70 ... Manual redrawing : ... All names need to be on the map ! Final

Real case test for OSM data

Starts with many questions...

● Are OSM data usable for commercial maps ?● What can be really done ?● Quality ? Completeness ?● Innovation ?

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Experiment !● Real test ?→ make a prototype, go as far as possible

in the usual process

● Which scale ?→ City map to match OSM usual Level Of Detail

● Which area ?→ Clermont-Ferrand : because many employees living

there are available to check OSM data

Page 5: The story behind Michelin Clermont-Ferrand city map #70 · The story behind Michelin Clermont-Ferrand city map #70 ... Manual redrawing : ... All names need to be on the map ! Final

OSM data quality check

● 500km of residential roads to check in the area...● Quick check outcome :

– some street names are missing,– some data are outdated

→ data needs to be improved, updated

Page 6: The story behind Michelin Clermont-Ferrand city map #70 · The story behind Michelin Clermont-Ferrand city map #70 ... Manual redrawing : ... All names need to be on the map ! Final

How to improve ?

● French cadastre : get street names● Opendata : schools, post office● orthophotos: bing + opendata imagery (CRAIG)● No opendata yet in Clermont-Ferrand

→ survey is needed !

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Efficient survey

● One person only on site, but many will use the collected data.

● Walking papers ? Geotagged pictures ? Video ?

→ pictures are selected

→ easy to collect and share● By car, bike, foot ?

→ bike : access to small streets

Page 8: The story behind Michelin Clermont-Ferrand city map #70 · The story behind Michelin Clermont-Ferrand city map #70 ... Manual redrawing : ... All names need to be on the map ! Final

Survey equipment

● GoPro : 2 pictures / second → no need to stop● 11 Mpixels → makes street names readable● GPS data loggers to collect location (3 in use

to reduce errors)● Batteries... helmet... water ;)

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Page 10: The story behind Michelin Clermont-Ferrand city map #70 · The story behind Michelin Clermont-Ferrand city map #70 ... Manual redrawing : ... All names need to be on the map ! Final

One week (only) on site...

● Mid-june 2012● 180.000 pictures / 400 GB JPEG data● 500km GPS traces● Some rain, then sun (and sun burns)● Many details collected which are only visible by

surveing● No problem with locals except...

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Page 12: The story behind Michelin Clermont-Ferrand city map #70 · The story behind Michelin Clermont-Ferrand city map #70 ... Manual redrawing : ... All names need to be on the map ! Final

Data processing● Pictures are geotagged using ExifTool● A work grid is set to share work internally

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Data input...

● JOSM is used with :– Geotagged pictures– Aerial imagery– Cadastre overlay

● Naming of 400km of unamed streets● 120km of highway=* added● 3 times more « steps » 1.5km total

Page 14: The story behind Michelin Clermont-Ferrand city map #70 · The story behind Michelin Clermont-Ferrand city map #70 ... Manual redrawing : ... All names need to be on the map ! Final

From data to map● Data from Geofabrik « Auvergne » extract● Conversion to ArcGIS tools using Michelin

standard attributes● Manual redrawing :

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Label placement...

Tuned manually

in some dense

area...

All names needto be on the map !

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Final result● Started as prototype → ends up in shops● Map sales started in february 2013● Same quality and design as usual Michelin city maps

● 100% based on OSM data, fully ODbL compliant● 100% « open spirit »

→ win/win for both OSM and Michelin

→ Clermont-Ferrand area data got major update

Page 17: The story behind Michelin Clermont-Ferrand city map #70 · The story behind Michelin Clermont-Ferrand city map #70 ... Manual redrawing : ... All names need to be on the map ! Final