There are three short lengths of running track, each with a station at both ends:
Branchline: starts at a typical GWR wayside halt, named Didcot Halt, and runs north on the western edge of the site to a platform, named Burlescombe Station, at the transshipment shed.
Dating from broad gauge days, the shed was used for transferring goods from broad to "narrow" (i.e. 4 ft 8 ¹⁄₂ in or 1,435 mm standard gauge) rolling stock and vice versa.
It was moved to its present location carefully from its original site nearby.

Broad gauge Line: the broad gauge line of 7 ft ¹⁄₄ in (2,140 mm) starts from the transshipment shed, and runs halfway back down the branchline.
The 2005 replica GWR Firefly is housed within the shed when not running
Mainline: starts from the Main Line Platform opposite the site entrance, using a pre-fabricated concrete station platform from Eynsham, and runs on the eastern-edge of the site to a newly built platform, named Oxford Road Station, near the transshipment shed.
Long-term plans include the reconstruction of the Brunel-designed building from Heyford station on this platform.
There are three short lengths of running track, each with a station at both ends:
Branchline: starts at a typical GWR wayside halt, named Didcot Halt, and runs north on the western edge of the site to a platform, named Burlescombe Station, at the transshipment shed. Dating from broad gauge days, the shed was used for transferring goods from broad to "narrow" (i.e. 4 ft 8 ¹⁄₂ in or 1,435 mm standard gauge) rolling stock and vice versa. It was moved to its present location carefully from its original site nearby.
Broad gauge Line: the broad gauge line of 7 ft ¹⁄₄ in (2,140 mm) starts from the transshipment shed, and runs halfway back down the branchline. The 2005 replica GWR Firefly is housed within the shed when not running
Mainline: starts from the Main Line Platform opposite the site entrance, using a pre-fabricated concrete station platform from Eynsham, and runs on the eastern-edge of the site to a newly built platform, named Oxford Road Station, near the transshipment shed. Long-term plans include the reconstruction of the Brunel-designed building from Heyford station on this platform.
Didcot Railway Centre