The study is sponsored by Tees Valley Regeneration, to support development and investment opportunities in the region.
Options for faster and more frequent passenger services between sites in the Tees Valley and freight and long-distance growth will all be examined, including modern heavy rail rolling stock, segregated light rail operation and mixed heavy and light rail services using tram-train technology.
The study builds on previous work investigating the use of light rail to improve journey time and travel experience between existing stations and key regeneration sites along the Tees Valley.
"We are delighted to support the regeneration of the Tees Valley through innovative thinking on the cost effective use of the rail assets in the region," said Faber Maunsell's Project Director Huw Kane.
"The appointment reinforces our market leading position in the application of tram train technology and the assessment and development of transport projects whilst continuing the development of our relationship with Network Rail and other rail industry stakeholders and supporting the continued growth of our rail engineering capability."