Time corridor A time corridor , also called a time - space induction channel and sometimes referred to as a time tunnel , was a form of time travel in which a wormhole was created through the Time Vortex . It was generally considered less advanced than other time travel technologies such as TARDIS es . ( TV : " Timelash " ) Considered child ' s play by the Seventh Doctor , one of the basics of time corridor technology was anchoring the exit point , since time corridors were temporary and collapsed when their power was cut . ( PROSE : " Set Piece " ) The Time Vortex was also referred to as a time corridor ( PROSE : " " ) which may have accounted for the danger of creating other corridors through the Vortex . Kontron tunnel s were time corridors in space rather than the Vortex . ( TV : " Timelash " ) Time corridors were primarily used by the Dalek s . Despite being described as less advanced than other time technology , time corridors seemed to be easily capable of dragging a TARDIS off course to a specific location . ( TV : " The Evil of the Daleks " , " Resurrection of the Daleks " , " Remembrance of the Daleks " ) Time corridor technology was first used by the Daleks near the beginning of the Great Civil War . ( TV : " The Evil of the Daleks " ) In order to complete a corridor , the Daleks built time conduits that would serve as the ends of the corridor . If the conduit on a planet was destroyed , the Daleks would no longer be able to reach it via the time corridor . ( AUDIO : " The Mutant Phase " ) The Daleks used a time corridor as a link between themselves and Earth in 1984 . There they had deposited samples of the Movellan virus that they would later need . Turlough accidentally travelled through the corridor and so the Doctor followed him in his TARDIS . Both the Daleks and Lytton ' s men used the corridor numerous times . ( TV : " Resurrection of the Daleks " ) Two Dalek Strategists and Dalek pilot escaped in a Time corridor . ( AUDIO : " The Time of the Daleks " ) The New Dalek Paradigm used a time corridor to escape destruction at the hands of Eleventh Doctor and Danny Boy . ( TV : " Victory of the Daleks " ) The Sontaran s were also developing time corridor technology , constantly improving their advancements whereas the Daleks , at least according to the Sontarans , assumed they achieved perfection and so did not improve their methods . ( AUDIO : " The Five Companions " ) In emergencies , some crafts travelling within a time corridor could deploy an escape time corridor which could latch onto familiar technology . ( AUDIO : " The Time of the Daleks " ) The Osiran s had developed a form of time corridor by making use of time spillage , but use of these corridors aged them the same amount that they travelled through time . While this was less of a problem for them than it would have been for other races given their exceptionally long life - spans , it was exploited by the Fourth Doctor trapping Sutekh in a corridor extending into the far future ( TV : " Pyramids of Mars " ) and the Fifth Doctor tricking Nephthys into making a constant series of 140 - year round trips until she had aged herself to death . ( PROSE : " The Sands of Time " ) The fractured Eternity Clock created time corridors in four different eras of London , releasing the Silence in the Elizabethan Era , Silurian s in the Victorian Era , Cybermen in modern - day London and the New Dalek Paradigm in 22nd century London . The Eleventh Doctor and River Song travelled between these different times and collected the pieces of the Clock , which closed the time corridors and erased the alternate timelines created by the invading species . ( GAME : " " ) The Eleventh Doctor accidentally jettisoned a room once , inadvertently creating a time corridor and allowing shadowy creatures to pass through and arrive in 1964 . They were drawn to Earth because Ethan dropped his mobile phone in 1964 , despite coming from 2014 , which made them hungry . ( COMIC : " The Door to a Winter Long Ago " ) Behind the scenes . According to the invalid source , " " , after the end of the civil war and the defeat of the Humanised Dalek s , the Emperor Dalek decided that the Daleks , in order to succeed in their conquests , would have to change history , thus time travel was put into greater use by the race . The Seventh Doctor tried to transfer a time tunnel to the Greenwich Meridian . ( NOTVALID : " Dimensions in Time " )