A Traffic Manager - sometimes called a Studio Manager - is responsible for scheduling jobs and moving them through the various stages of development.
Controlling workflow begins when a job enters the agency.
Typically, a Traffic Manager would receive and process project requests, collect important information about a project, manage schedules, assign tasks and track the project's progress, making sure it's completed on time and to budget. Some Traffic Managers may see a job through to invoicing.
To assist Traffic Managers, some studios have a chosen project management software to keep track of the job status. The Traffic Manager is responsible for workflow management to keep track of task dependencies. If one task falls behind, other tasks may need to be rescheduled.
Depending on the size of the agency, the role of a Traffic Manager may be done by a Production Manager or they may have both within the team if it's a larger team.