That specific sloped section of sidewalk is called a curb ramp (also called a pedestrian curb ramp or ADA curb ramp).
The red bumpy panel is called a detectable warning surface or truncated-dome warning pad. It helps people with visual impairments know they're entering the street.
So if you're talking about the whole concrete section: ADA curb ramp.

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The color of it is now metal and red

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Unable to answer "What’s the name of this place?" – Restaurant – node/13788777062 via StreetComplete 63.4:

Just a house

Bliiahhvg

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Towtruck
company

Best veggie garden in dykerhights