A major programme of lift and escalator renewal is taking place on the Tyne and Wear Metro.
Nexus, the public body which owns and manages Metro, is investing £2m in the project, which is set for completion this summer.
The work will ensure that essential assets at stations across the network will remain in service for a further 15 years.
All three escalators at Haymarket Metro station, used by five million customers a year, are being refurbished.
Ten lifts are being refitted, while the lift at Monument Metro station is being completely replaced.
The lifts will get energy saving LED lighting and digital help points.
Head of Renewals at Nexus, Sarah McManus, said: “We are investing £2m in lifts and escalators on the Metro system to ensure they are fit for service for many more years to come.
“These assets are heavily used by customers, especially at those stations in busy city centres. They need renewal work.
“At Haymarket all three of the station’s escalators are being refitted with the steps and drive chains. We are grateful to customers for their patience while these works are taking place.
“These projects are just a part of the major multi-million-pound investments that we have made to renew key parts of Metro’s infrastructure over the last ten years.”
Metro stations where lifts are being refurbished: Chichester, Gateshead, Benton, Central, Haymarket, Monument.