Both drivers received minor injuries and Knuth says her car was badly damaged.
She has spoken to Whanganui District Council about improving the signage and road markings.
WDC senior roading engineer Rui Leitao said there are no plans for the intersection apart from routine road remarking.
"There have only been three reported non-injury crashes in the last five years," he said.
"The signage at the intersection is to New Zealand standards."
Leitao said the intersection ranks low in priority against other sites in the city.