Telenav/Mapping Projects/Europe/Paris&Montigny le Bretonneux

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To make OpenStreetMap more navigable and accurate in guidance, our mapping team is planning to start an editing project in Europe. By the end of April our team will start editing in Paris and Montigny-le-Bretonneux. We will focus on editing one ways, turn restrictions, road geometry and also validating the existing map by correcting keep right errors.

Paris, France

latitude: 48.8554, longitude: 2.2817
Browse map of Paris 48°51′19.44″ N, 2°16′54.12″ E
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Paris is a citiy in France at latitude 48°51′19.44″ North, longitude 2°16′54.12″ East.

Montigny-le-Bretonneux, France

latitude: 48.7688, longitude: 2.0310
Browse map of Montigny-le-Bretonneux 48°46′07.68″ N, 2°01′51.60″ E
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Montigny-le-Bretonneux is a citiy in France at latitude 48°46′07.68″ North, longitude 2°01′51.60″ East.

Overall statistics

The types of roads that we are taken in to consideration are: motorway, trunk, primary, secondary, tertiary, unclassified, residential, living_street, service, track, road, ferry

City Road Geometry(km) Road Name(km) Oneway(km) Speed Limit(km) Lane Info(km) Turn Restrictions Signposts
Paris 2029.05 1752.40 1328.17 1303.54 396.94 387 10
Montigny-le-Bretonneux 167.48 128.70 76.05 56.89 26.66 12 3

The statistics were made with osm data from 03.17.2020 (

One ways:

We will add the direction of the ways (oneway = yes) where is needed and missing.

City Cases to review
Paris 50
Montigny-le-Bretonneux 2

Also check:

Turn restrictions:

We will add new turn restrictions relations where are needed with the help of OpenStreetCam and Mappilary.

City Cases to review
Paris 1081
Montigny-le-Bretonneux 28

For more info you can also check:

Integrity check and Keep Right

We will improve the existing data using tools like Integrity check and Keep Right.

Integrity checks
Severity Error name Cases
critical bad-2w-4w-tags 426
critical invalid-turn-restrictions 32
critical oneway-flip-flops 3
critical one-way-loops 1
critical pierced-tunnels-and-bridges 16
critical road-islands 72
critical unconnected-ways 54
critical wrong-oneway-double-way 56
critical wrong-one-ways 1
major bad-tag-values 43
major highway-tag-flip-flops 1
major miscategorized-ramps 15
major ramp-destination-conflicts 1
major speed-limit-value 3
major way-sign-posts 63
minor lane-count 85
minor links-with-name-or-ref 188
minor misnamed-double-digitized-ways 66
minor road-name-and-ref-tag-flip-flops 1
minor roundabout-name 33
minor smoothness-problems 27
minor turn-lanes-order 143
minor typos 3
Total 1.333
Keep right
Severity Error Name Count
Critical via is not on the way ends 10
Critical missing to way 505
Critical wrong restriction angle 2
Critical missing from way 504
Critical dead-ended one-ways 9
Major intersection without junction 13
Major floating islands 32
Major almost-junctions 45
Minor mixed layers intersections 30
Minor already restricted by oneway 4
Total 1144

More info:

Our sources:

Aerial Imagery: Esri World Imagery, Bing Satellite Imagery, Maxar

Street level imagery: OpenStreeCam, Mapillary

Improve OSM: Traffic Flow Direction

Local Data: where there is approval to use it