Bollards which are designed to stop cars and other vehicles from using a Lynn bus lane have had to be temporarily lowered - so that buses can get through.
Transport officials say the move has been made to prevent delays to passengers on services which are scheduled to use the Hardings Way route.
But any drivers who are tempted to take a short cut over the coming weeks have been warned they risk being fined if they do so.
The lane, which runs between Boal Quay and Wisbech Road, has a set of bollards at each end which are designed to lower automatically when a bus fitted with a communications device, known as a transponder, approaches them.
However, the barriers are currently not in place as Norfolk Green, the company which runs most of West Norfolk’s bus services, is waiting to install the equipment on some of its newest vehicles.
A spokesman said: “We have had several new additions to the fleet over the last couple of months and we haven’t been able to get them fitted.”
She said a number of services had been delayed by the problem before the barriers were lowered in an agreement between the company and Norfolk County Council.
She added: “It’s a temporary measure to stop passengers being inconvenienced.”
Council officials say the new transponders should be in place soon.
A spokesman said: “We ordered them as soon as we were made aware of the requirement and we are expecting the transponders to arrive in January.
“Until that time the gates will be lowered to allow the bus company to continue to provide a reliable service. Once the responders have been received, the gates will be back in operation.”
The route is no stranger to problems, having first hit the headlines when it opened in 2011 as bus drivers were forced to take specialist training to negotiate a particularly tight bend, which could only be taken at a very low speed.
But, despite the gates being lowered, use of the road remains restricted to buses, cyclists and pedestrians.
The council says that any other drivers who are caught using the road would risk being issued with a fixed penalty notice.