

Hello, and welcome to OpenStreetMap!

If you're new to contributing, please make sure to read the wiki if you are unsure about anything. It contains a beginner's guide, as well as detailed information on all common map elements and standards.
https://wiki.openstreetmap.org/wiki/Beginners%27_guide

In Montreal we use an offset of 0.6, -1.54 for the 2020 Bing imagery that is the default in iD editor. If you draw or realign elements, please change your offset to this value in iD by going into the Background Settings (shortcut: B key) and scrolling to the bottom to find Imagery Offset.
https://wiki.openstreetmap.org/wiki/Montr%C3%A9al

In addition, please try to make your changeset comments descriptive. Other mappers should be able to tell what you changed based on your description.
https://wiki.openstreetmap.org/wiki/Good_changeset_comments

Thanks for contributing!