This entry will be constantly updated based on my findings in USA.

Please be advised that a correct solution depicted below is not the only one. You are welcome to brainstorm in the comment section!

Hint: Right click on the picture to view in a new tab so you will see it in a better size.

1:

Wrong:

The reason why the intersection originally looks like this is to prevent reckless driving in rural area.

Correct:

or

or

If you don’t want to hear the awful sound coming from TTS saying “Turn right and then turn left” to “Continue”, then map like this.

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2:

Wrong:

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3:

Wrong:

Correct:

I did not address the sidewalk issue here because I always drive. My understanding is: if drawing road/sidewalk as a line instead of an area, there is no need to cut the crosswalk to make it “detailed”, because the part you cut as sidewalk is already a part of the crosswalk. Theoretically they are like this (crosswalk in orange):

Connecting a crosswalk to a sidewalk, is to ensure a routing is possible, but nothing related to accuracy (if you don’t have a survey-grade GPS, don’t try to tell me your mapping is accurate). If you wish to differentiate the tiny area(s), using curbs on the junction node instead:

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4:

Wrong:

Correct:

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5:

Wrong:

Correct:

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6:

Wrong:

Correct:

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7:

Wrong:

Correct:

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8:

Wrong:

Correct:

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9:

Wrong:

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10:

Wrong:

Correct: