Two city centre tram stops will be out of action for up to 12 weeks from the end of this week as work on a £4.5 million upgrade get under way.
Worn tracks will be replaced meaning The Royal and St George's stops will be closed.
The St Georges stop platform will be lengthened for the new Urbos 3 trams while a new crossover track will be installed at The Royal to allow trams to turn back.
Bosses at transport authority Centro will be putting on a replacement bus service and passes will be provided for existing bus services along the route.
To allow contractors to start on site, the Metro line between Priestfield and St George’s will be closed after the last tram on Friday.
The initial phase of works will require trams to terminate at Priestfield. However, once a new crossover is installed, the tram service will be extended to The Royal whilst the remainder of the work is completed.