Councillor Mithra Cox said the possibility of food trucks was first brought to the council in 2017 as part of a push to stimulate the night-time economy.
She said the limitations on opening hours put a stop to that.
“They’re only allowed to open during daylight hours, so essentially they’re only going to be coffee vans,” she said.
“It’s just rules for the sake of having rules, and I think we can improve it.”