Ulceby Junction is the easternmost of the four signal boxes featured in this simulation, controlling not only the rationalised layout at Ulceby itself where the busy freight corridor to/from Immingham intersects the much quieter branch line to Barton-on-Humber but also the junction at Habrough where the latter diverges from the main line between Grimsby and Barnetby. The former is worked from a lever frame, the latter from an individual function switch panel mounted on the block shelf.
Ulceby works Track Circuit Block in all directions, with trains described by bell signal, apart from towards Goxhill (and onto Barton) which is Absolute Block.