Telenav/Mapping Projects/United States/Washington Oregon California Arizona Nevada

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To make OpenStreetMap more navigable and accurate in guidance, our mapping team started an editing project in United States.

In this project we will focus on editing oneways, turn restrictions, road geometry and also validating the existing map by correcting errors from 5 different states (Washington, Oregon, California, Arizona, Nevada)


Area

Washington
VTE
Washington, USA
Wikidata

latitude: 47.428, longitude: -119.575
Browse map of Washington 47°25′40.80″ N, 119°34′30.00″ W
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Washington is a State in USA at latitude 47°25′40.80″ North, longitude 119°34′30.00″ West.

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Oregon
VTE
Oregon, USA
Wikidata

latitude: 43.952, longitude: -120.940
Browse map of Oregon 43°57′07.20″ N, 120°56′24.00″ W
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Oregon is a State in USA at latitude 43°57′07.20″ North, longitude 120°56′24.00″ West.

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California
VTE
California, USA
Wikidata

latitude: 37.882, longitude: -121.854
Browse map of California 37°52′55.20″ N, 121°51′14.40″ W
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California is a State in USA at latitude 37°52′55.20″ North, longitude 121°51′14.40″ West.

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Arizona
VTE
Arizona, USA
Wikidata

latitude: 34.365, longitude: -113.364
Browse map of Arizona 34°21′54.00″ N, 113°21′50.40″ W
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Arizona is a State in USA at latitude 34°21′54.00″ North, longitude 113°21′50.40″ West.

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Nevada
VTE
Nevada, USA
Wikidata

latitude: 38.108, longitude: -115.996
Browse map of Nevada 38°06′28.80″ N, 115°59′45.60″ W
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Nevada is a State in USA at latitude 38°06′28.80″ North, longitude 115°59′45.60″ West.

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Overall statistics

In the overall statistics for the 5 States, we have considered the following types of highway: motorway, trunk, primary, secondary, tertiary, unclassified, residential, living_street, service, track, road, ferry.

For each feature, our team has created some statistics:

City Road Geometry(miles) Road Geometry without link (miles) Road Geometry Gap (miles) Road Name(miles) Road Name Gap(miles) Oneway(miles) Speed Limit(miles) Speed Limit Gap (miles) Lane Info(miles) Lane Info Gap(miles) Turn Restrictions (count) Bridge(miles) Tunnel(miles) Surface Surface Gap (miles) Roundabout HOV Railway crossing (count)
Arizona 113101.81 110330.18 2771.63 79210.15 33891.66 9133.25 22545.09 90556.72 15675.56 97426.25 11043 74.90 1.66 51903.52 61198.29 39.90 113101.81 1384
California 91753 9280
Nevada 57349.92 54959.74 2390.18 32960.24 24389.68 3614.00 10973.41 46376.51 6950.78 50399.14 7060 12.47 1.90 32238.95 25110.97 18.40 57349.92 446
Oregon 96120.68 92894.54 3226.14 71184.42 24936.26 2982.50 17405.49 78715.19 13863.81 82256.87 12674 79.59 5.19 40273.99 55846.69 18.89 96120.68 2988
Washington 111729.73 109163.82 2565.91 87872.18 23857.55 4903.13 21246.68 90483.05 14517.68 97212.05 12588 150.77 12.51 39557.91 72171.82 36.38 111729.73 4402
Total 378302.14 367348.3 10953.86 271227 107075.2 20632.88 72170.67 306131.5 51007.83 327294.3 135118 317.73 21.26 163974.4 214327.8 113.57

Errors


Improve OSM

Here we will focus on errors gathered from Improve OSM

Link here

More information about Improve OSM you can find it here

State Oneway

IOSM

TR

IOSM

Oneway

probe data

TR

probe data

Total
Arizona 647 3054 99 37235 41035
California 57 11896 967 167587 180507
Nevada 13 730 39 15593 16375
Oregon 19 970 158 8969 10116
Washington 58 948 71 16043 17120
Total 794 17.598 1334 245427 265153
Other errors

In order to improve the existing map, we will also look on different type of errors found in Open Street Map like:

bad-2w-4w-tags
bad-highway-tags
bad-ramps
conditional-turn-restrictions
dead-end-ramps
invalid-turn-restrictions
oneway-flip-flops
one-way-loops
overlapping-ways
pierced-tunnels-and-bridges
reverse-roundabout
road-islands
unconnected-ways
wrong-oneway-double-way
wrong-one-ways
bad-tag-values
dead-ends
highway-tag-flip-flops
miscategorized-ramps
ramp-destination-conflicts
speed-limit-value
way-sign-posts
bad-words
cardinal-directions
digitization-flip-flops
lane-count
links-with-name-or-ref
misnamed-double-digitized-ways
road-name-and-ref-tag-flip-flops
roundabout-name
smoothness-problems
turn-lanes-order
typos
zorro-ways

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