Sheffield transport bosses have revealed overnight work to replace Supertram rails will continue for the next two weekends.
Contractors have been at work during the night this week around the Manor Top area – leading to complaints from residents about disruption to their sleep.
South Yorkshire Passenger Transport Executive has apologised for the inconvenience but said work cannot take place in the area during the day because the task involves closing the outer ring road.
The authority added it is unable to work fewer hours at night and spread the work over more weekends because that would delay rail replacement elsewhere on the network.
The Manor Top works are part of a five-year programme to replace rails on all sections of Supertram running on streets.
Roy Mitchell, South Yorkshire Passenger Transport Executive’s principal public transport manager, said: “I regret it is impossible to carry out this essential work without some noise and that this may disturb local people.
“I wish to apologise for the resultant inconvenience and assure residents that, once a section of work is completed, the contractor will move on as soon as possible.
“Because the work is being done to rails set into the road, it is necessary to close the road to all traffic in order to carry out this work.
“In some areas we cannot do this during the day as traffic will be severely disrupted and, in some places, for example at Manor Top, that would mean closing the ring road which is not practical as it would cause major disruption and possibly gridlock.
“Following consultation with Sheffield Council we have had to programme the work during the night.”
South Yorkshire Passenger Transport Executive said it had carried out public consultation including letters and meetings with residents before the work.