What could a brick separator do other than separating Lego bricks? Make it into a Transport Terminal! Design: V-shape shelter design provide shade and shield Lego minifigures from rain, and yet provides sufficient clearance for the all Lego city trains and buses. 2-way train platform design allows for trains to travel in 2 directions. Playability: Transport Terminal provides flexibility in switching play between train or bus station. When the platform is removed, train structure turns into a bus station. They also can be connected with one another to form a longer train/bus station. This meets the need for a longer platform when multiple trains cars are connected. As illustrated in the pictures, several modules can be connected via 3 x connecting pins at black base frame and 2 x technic liftarm on the brick separators at the module ends. Hope this gives you some ideas on how to use up your brick separators. Everything is awesome! :) https://ideas.lego.com/projects/168723 Multiple modules can be connected together via connecting pins at train station struction frame Top are joined by technic liftarm piece when multiple modules are connected for longer platforms Top can be removed, and turns into a bus station.