Most curb is constructed separately from the pavement, and the gutter is formed at the joint between the roadway and the curb. The combined curb and gutter (also called "curb and channel") has a concrete curb and gutter cast together in one piece.

What is the difference between kerb and pavement?

As nouns the difference between pavement and kerb

is that pavement is any paved floor while kerb is (british|nz) the edge between the pavement and the roadway, consisting of a line of kerbstones.

What are different types of kerbs?