Quote:
Originally Posted by rthomasd
I notice that some streets that I consider principal routes are shown as very narrow white lines, while other streets have a much larger measure. Consider LeMarchant Rd is shown as a very narrow road, whereas Hamilton Ave is very wide on the map, likewise Waterford Bridge Rd which is barely two lanes with no parking in spots.
So how do roads get designated on Google Maps, is this something the city decides?
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Details of map items can be viewed at
https://www.google.ca/mapmaker .
Try clicking 'Browse,' then 'Line features,' then select a road, then click 'Details'. A panel will reveal all the details associated with that road segment. In the case of Lemarchant, the 'Priority' attribute is 'Local road', while Hamilton's 'Priority' is 'Major artery'.
You can add and edit roads, walking paths, biking paths, parks, buildings, businesses, and all sorts of other things through Mapmaker. The edits will eventually be reviewed and, if accepted, added to Google Maps. You can also review edits submitted by other users to speed the review process. The more community users review Mapmaker edits, the quicker edits get accepted or rejected.
I don't know how Google automatically classifies road 'Priority'. I would guess it's a mix of aerial photography, existing data from municipal, provincial, and federal governments, and Street View data.
Google encourages all of us to improve Maps by suggesting edits, for example, to the 'Priority' attribute. From a quick read of the road priorities help page
https://support.google.com/mapmaker/.../1098056?hl=en ), I think both Hamilton and Lemarchant are better described by the 'Minor artery' classification.