NEXUS is making changes to its senior management team.
The transport operator said it “seeks to provide greater efficiency while delivering major projects”.
Plans include the launch of smart travel in the region, modernisation of the Metro, and the ongoing review of how bus services are delivered.
Ken Mackay (pictured), director of rail and infrastructure, is to step down after 18 years with Nexus.
During that time he masterminded the building of the Metro line to Sunderland and managed the installation of new ticket machines, gate lines and smart technology at stations, which is to be completed this year.
Raymond Johnstone, the current Nexus rail director in charge of maintenance and modernisation sections, will succeed Mr Mackay. His existing post will not be replaced.
Director general Bernard Garner will reduce his contracted hours, but will remain at the head of the business.
Tobyn Hughes, director of customer services, will also be deputy director general.