Science and Education Publishing International Journal of Physics 2333-4576 3 2 2015 02 09 A Solution Looking for a Problem - Generalised Hallway Switches 69 73 EN Arne Bergstrom B&E Scientific Ltd, BN25 4PA, United Kingdom IJP2015324 10.12691/ijp-3-2-4 2015 01 08 2015 02 06 2015 02 09 The properties of hallway switches are discussed with emphasis on how special types of such switch systems with arbitrarily many switches can be constructed and systematically become conducting/nonconducting by simply turning on/off any arbitrary switch in the system, and then become nonconducting/conducting again by turning off/on any arbitrary switch in the system, etc. A question is whether in physics, biology, genetics, economics, sociology, or traffic management, there might exist - or preferably would exist - complex such systems, the global state of which could thus be switched by a local action anywhere in the system and then switched back by another local action anywhere in the system.