Changes are to be made to the new Tring Road signal junction in Aylesbury to make traffic flow better.
Boxed junctions are to be introduced in the near future to stop cars going in and out of Aylesbury blocking up the turnings into Oakfield Road and King Edward Avenue.
Workers spent six months building the lights as part of the agreement that allowed the Arla dairy development in Aston Clinton to go ahead.
Greater Aylesbury Local Area Forum chairman Brian Roberts said the boxes would ease traffic flow.
He said: “It’s part of the refinements that need to be put in place.”
Much of the reaction to the new junction has been negative, with people complaining they have increased journey times and sparked safety fears.
Alan Candy, Bucks Herald motoring editor and a member of the Institute of Advanced Motorists, commutes through the junction daily.
Mr Candy said: “They have got progressively worse ever since the schools went back.
“Yesterday (Tuesday) was undoubtedly the worst day so far and it took me 30 minutes to travel from the Aston Clinton bypass to Gatehouse Way, which would normally take about 10 minutes.”
On the other side of town, plans have been put forward for a new pedestrian crossing near the Tesco Express on Bicester Road.
Mr Roberts said the crossing will make the area safer, particularly for pupils walking to the new Aylesbury Vale Academy site in Berryfields.
He said: “It’s a safety feature we must have now.”