Work on the roads around Lancaster Road and Tithebarn Street has been stopped by Lancashire County Council.
The county council says it is diverting its road workers to highways projects elsewhere.
The 18-month project is seeing the Fishergate-style paving and street scene brought to the area around the Guild Hall and round to Preston Bus Station.
Cabinet member for highways and transport county councillor Keith Iddon explained the decision.
Read more: Lancaster Road roadworks are progressing well
He said: “We’ve temporarily stopped most of the improvement work around Lancaster Road, while other projects in the area are carried out. This includes the improvements to the Guild Hall entrance and the new public space on the former bus station apron.
“The team is currently working on highway projects elsewhere, so people may notice that some areas still look unfinished. However a small team is still carrying out some minor work in this area.
“There are no road closures in place and all traffic management has now been removed from site.
“As part of this work, we’ve already widened pavements with new flags and put in new bus stops at the Church Street end of Lancaster Road.
“There are other alterations around the city centre, which will improve traffic flow and reducing queuing. We’ve taken out the left turn from Earl Street onto Lancaster Road, opposite the market.
“Similarly people can no longer turn right from Ormskirk Road onto Tithebarn Street. These changes will help to improve the flow of traffic in this area.”
As part of the Lancaster Road scheme additional funding had to be found to repair Old Vicarage.
The road collapsed after being used as a diversion route during the Tithebarn Street and Bus Station works.
Read more: Ham and Jam cafe owner blames roadworks for business going under
Preston Bus Station’s revamp was unveiled in July following a multi-million pound refurbishment.
What do you think about the roadworks round by Lancaster Road and Tithebarn Street?