The city council is considering creating a pedestrian zone around the grade-I listed towers. It said tourist coaches frequently misjudged the size of the archway and became stuck, eroding the brickwork.
Built in 1380, the structure is thought to be the largest surviving medieval gateway in the UK.
Click here to read this article from the BBC
Click here to read the St Dunstan's and Westgate Towers environmental improvements plans from Canterbury City Council
See also the earlier article Westgate Tower Museum in Canterbury is saved from closure