"Mind the gap" or sometimes "watch the gap" is an audible and written warning phrase issued to rail passengers to take caution while crossing the horizontal, and in some cases vertical, spatial gap between the train doorway and the station platform edge.
The phrase was first introduced in 1968 on the London Underground in the United Kingdom. It is popularly associated with the UK among tourists because of the particularly British word choice (this meaning of the verb mind has largely fallen into disuse in American English, where the term "watch your step" is more commonly used).
Origin of the phrase
The phrase "Mind the gap" was coined in around 1968 for a planned automated announcement, after it had become impractical for drivers and station attendants to warn passengers. London Underground chose digital recording using solid state equipment with no moving parts. page 220. As data storage capacity was expensive, the phrase had to be short. A concise warning was also easier to paint onto the platform.
The equipment was supplied by AEG Telefunken. According to the Independent on Sunday, sound engineer Peter Lodge, who owned Redan Recorders in Bayswater, working with a Scottish Telefunken engineer, recorded an actor reading "Mind the gap" and "Stand clear of the doors please", but the actor insisted on royalties and the phrases had to be re-recorded. Lodge read the phrases to line up the recording equipment for level, and those were used.
While Lodge's recording is still in use, some lines use other recordings. From 2005, the voice of Phil Sayer was heard on the Jubilee, Northern, and Piccadilly lines. When he died in 2016, The New York Times, one of many newspapers worldwide to report his death, said, "Mr. Sayer's was not the only voice cautioning passengers to 'mind the gap', but it is arguably the most familiar one." For 15 years before that, the voice on the Piccadilly line was that of Archers actor Tim Bentinck, but is now Julie Berry's. Another announcement was recorded by voice artist Emma Clarke. At least ten stations were supplied with announcers manufactured by PA Communications Ltd. of Milton Keynes. The recorded voice is that of Keith Wilson, their industrial sales manager (May 1990). It can still be heard at Paddington for example. Keith Wilson's voice can be heard in the background of a scene in the Bond film Skyfall.
In March 2013, an old "Mind the gap" recording by Oswald Laurence was restored to the curved northbound platform at Embankment station on the Northern line's Charing Cross branch so that the actor's widow, Dr Margaret McCollum, could hear his voice.
Use in Britain
London Underground Because some platforms on the London Underground are curved, and the rolling stock that use them are straight, an unsafe gap is created when a train stops at a curved platform. In the absence of a device to fill the gap, some form of visual and auditory warning is needed to advise passengers of the risk of being caught unaware and sustaining injury by stepping into the gap. The phrase "Mind the gap" was chosen for this purpose and can be found painted along the edges of curved platforms and heard on recorded announcements when a train arrives at many Underground stations.
The recording is also used where platforms are non-standard height. Deep-level tube trains have a floor height around less than sub-surface stock trains. Where trains share platforms, for example, some Piccadilly line (deep-tube) and District line (sub-surface) stations, the platform is a compromise. On London's Metropolitan line, a gap has been created between the train and the platform edge at Aldgate and Baker Street stations. This is due to the phasing out of the old "A" stock trains and their replacement with "S" stock trains, which have low floors to ease accessibility for disabled people.
"Mind the gap" audible warnings are always played on the Central line platforms at Bank, the Northern line northbound platform at Embankment, and the Bakerloo line platforms at Piccadilly Circus. The markings on the platform edge usually line up with the doors on the cars.
While the message is sometimes played over the platform's public address system on some lines, usually it is an arrival message inside the train itself: "Please mind the gap between the train and the platform".
During the coronation weekend of King Charles III in 2023, the message was voiced by the King himself and his wife Camilla. The King says, "My wife and I wish you and your families a wonderful coronation weekend," followed by Camilla, who says, "Wherever you are travelling, we hope you have a safe and pleasant journey," which is ended with the King saying "And remember, please mind the gap." It was played throughout every railway station in the United Kingdom.
Use in Ireland The phrase "mind the gap" can be heard at each station along Dublin's DART and at all stations in the city centre. The message can be seen in some railway stations in the rest of Ireland. On Commuter and InterCity trains, the phrase "Please mind the gap" is accompanied by the Irish "" when pulling into stations.
The phrase worldwide
In trains
Equivalents of "Mind the gap" are used by transit systems worldwide, particularly when stations curve, but most new systems tend to avoid these types of stations.
Europe The French version "" ("Watch your step when getting off the train"), an , can be heard on trains arriving at curved stations on Metro lines 1 to 7, 9, 11, 13, 14 and RER A, B, E. Announcements are also played in English ("Please mind the gap between the train and the platform") and in either Italian, German, Japanese, Spanish, or Korean. Written signage can be seen when walking up to said platforms. Another version used by SNCF is "" ("Be careful with the gap between the footboard and the platform.") on national rail services. In the Athens Metro, the message "" ("Please mind the gap between the train and the platform") is heard in both Greek and English at the stations of Monastiraki and Agios Nikolaos. In Stockholm Metro's and on Stockholm commuter rail's stations two versions can be heard: "", meaning "Mind the distance between carriage and platform when you exit". It is also displayed as text on electronic displays. In Oslo, T-bane trains play a recorded Norwegian warning: "" (Be aware of the distance between train and platform.) -- followed up by the English "Please mind the gap." In Helsinki, on some commuter rail stations, "Mind the gap" can be heard in English, Finnish, and Swedish. In Hamburg, passengers at the S-Bahn station Berliner Tor are warned with yellow flashing lights and the announcement "" ("Please mind the gap between train and platform"). On the Berlin U-Bahn, the phrase "" ("Please mind the gap between train and platform edge when alighting") is used, followed by the English "Please mind the gap between platform and train." On the Madrid Metro, a recorded warning message can be heard inside the trains when approaching a station with curved platforms: "" ("Caution: station on a curve. As you exit, be careful not to place your foot between the train and the platform.") No warning messages are heard when arriving at a station with straight platforms. On the Lisbon Metro at the Marquês de Pombal station on the blue line, the announcement "" ("Pay attention to the gap between the platform and the train") can be heard. On all of the trains of the Milan Metro network, a yellow sticker on every door is visible with the warning in the Italian language "" (meaning literally "Pay attention to the gap between the train and the platform") and also in English "Mind the gap between the train and the platform". On the Amsterdam Metro, a female voice announces the phrase "" ("Pay attention to the space between the metro and platform during boarding and disembarking.") when approaching some stations, which is then followed in English by: "Please mind the gap between the train and platform." Trains of the Dutch Railways have an announcement that warns passengers to carefully disembark because of high-level difference: "" ("Dear passengers, pay attention when disembarking. There is a level difference between the platform and the train.") This is only announced in Dutch. In Warsaw Metro, a sticker over the doors depicting a stick figure falling into the gap with texts below: "" in Polish and (in italics) "Mind the gap" in (British) English, both written in Frutiger font (the same as all assets forming Warsaw Public Transport).
Asia On Jakarta's Commuterline (KRL), the train announcement "Perhatikan jarak antara peron dengan kereta." is spoken. This translates as "Please mind the gap between the train and the platform." An English announcement is then played: "Please mind the platform gap." On Singapore's MRT, the phrases "Please mind the platform gap" and "Please mind the gap" are used in announcements in English, played in the trains whenever a train approaches an underground station after the station's name has been announced twice. It is also played on underground station platforms on the North-South and East-West lines just after the train doors open or, sometimes, just as the train approaches the platform. Trains also have stickers pasted on the windows to caution passengers. The Chinese version "请小心空隙" is also commonly heard. It is also heard in trains on the North East and Downtown lines in English, Chinese, Malay, and Tamil. The phrase can be heard in New Delhi Metro in two languages (English and Hindi): "" "Mind the gap". It also can be heard in Chennai Metro in two languages (English and Tamil): "" "Please Mind the gap". On Hong Kong's MTR, the phrase "Please mind the gap" () is announced in three languages: Cantonese, Mandarin, and English. In recent years, a more elaborate version of the announcement, heard on some East Rail line stations with very curved platforms, says, "Please mind the gap and be aware of the difference in levels between the platform and the train" (). Several mainland Chinese metro systems use the phrase extensively; on the Tianjin Metro, announcements and stickers on train doors and platforms mention the gap (as well as to "mind the gap") in both English and Chinese. (The Chinese phrase is .) The Beijing Subway uses "Mind the Gaps" (note the plural). On lines operated by Beijing MTR Corp., Ltd., the Hong Kong/British influence is prominent, with the English announcement "Please mind the gap between the train and the platform" – having a British pronunciation – being played every time a train arrives. Both the Shanghai Metro and the Nanjing Metro use versions with slightly mutilated grammar ("Caution, Gap" and "Care the Gap", respectively, although the Chinese is the same). In December 2025, MRTC 3000 class trains of the Manila Metro Rail Transit System Line 3 (MRT-3) began using pre-recorded messages for station identification in alternating English and Filipino, with "mind the gap" incorporated in the announcement albeit not translated. Preceded by a chime sound, the message is: "Arriving at (station name). Paparating na: (station name). Doors will be opening on the left/right. Ang pinto [ay] magbubukas sa kaliwa/kanan. Please mind the gap. The train is currently northbound/southbound." Before automation, the announcement is done by train drivers and security personnel, with the Filipino version of "Mind the gap" being "Mag-ingat po sa paghakbang sa pagitan ng tren at station platform." (Please watch your step between the train and the station platform.) When approaching Taipei Main Station and Guandu Station on the Red line of Taipei Metro, after the transfer information is announced, the phrase "Mind the gap" () is announced in Mandarin, English, Hokkien and Hakka.