Answer:

widens

Answer	Crossword Clue
WIDENS	Does some roadwork
WIDENS	Dilates
WIDENS	Grows amidships

WIDENS	Antonym of tapers
WIDENS	Improves the highway, perhaps
WIDENS	Expands
WIDENS	Broadens
WIDENS	Adds a lane to
WIDENS	Extends.
WIDENS	Broadens.
WIDENS	Enlarges.

WIDENS	Expands.
WIDENS	Reams.
WIDENS	Reams out
WIDENS	Increases in capacity
WIDENS	Expands horizontally
WIDENS	Adds a lane
WIDENS	Reams
WIDENS	Reams out, e.g.