These concrete paths on either side is just the roads sidewalks. There is a roughly 6 feet long grassy divide between the road and the sidewalks.

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just a two way fire station exit. No cross walk signage.

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This path next to road and separated by 4-5 feet of grass is sidewalk.

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This is just the sidewalk for the road. It has a 6-8 feet grassy divide.

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This is just the sidewalk next to the road. It has a 4-6 feet grassy divide.

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There is no special walkway material. I am not sure why it asked for road material of crosswalk.

via StreetComplete 39.1

Crosswalk is just lines painted on road. I am not sure why it asked for material.

via StreetComplete 39.1

This is just the sidewalk next to the road. There is a 6-8 feet grassy divide.

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Its is just painted lines over the road. I am not sure why it ask for crosswalk material type.

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Culdesac here

via StreetComplete 38.2