"Lift-Off" Rail Joints

[Anonymous]

I have seen many layout plans that include access to remote parts of the layout by means of lifting a section or sections of rail to open an aisle or passageway. None of these plans explains how the rail is joined so as to ensure reliable electrical conductivity, as well as smooth, non-derailing operation. Can you suggest some ways to do this? Since different locations may require different configurations, the more suggestions you have, the better!