The collision, which closed the A23 Airport Way near Junction 9A of the M23, occurred at around 1.35pm earlier today (July 11).
A 32-year-old man has since been arrested on suspicion of driving while unfit through drink and on suspicion of assault on an emergency worker.
He remains in custody at this time.
A spokesperson for Sussex Police said: “Police responded to a report of a single-vehicle collision in Airport Way near Junction 9A of the M23 westbound at about 1.35pm on Saturday, July 11.
“A vehicle had crashed into a lamppost, causing damage.
“Officers arrested a 32-year-old man on suspicion of driving while unfit through drink and on suspicion of assault on an emergency worker.
“He remains in custody at this time.
“Temporary road closures were in place while the area was made safe.
“The scene has been handed to National Highways.”
You can follow live updates on the incident here.