SPAD

spad spád späd spað spáð English signal passed at danger thumb|right|a three-aspect railway signal at danger Pronunciation en /ˈspæd/ UK en æd 1 Phrase phr en rail transport UK en signal passed at danger. en SPAR Noun en rail transport UK An instance of a signal passed at danger. en 2026 March 4 Christian Wolmar Railtrack: what really happened RAIL 1056 53 "We found there had been 60 SPADs in the Paddington throat in the previous eight years, and that was all to do with the layout becoming more complex because of the Heathrow Express. en UK politics informal en spad special advisor in government. en plant science A relative measurement of the amount of chlorophyll present in a leaf, based on measurements with a SPAD meter produced by Minolta. en military en self-propelled air defense; a self-propelled anti-aircraft vehicle. Verb en rail transport UK To pass a signal at danger. en 2005 Andrew Hopkins Safety, Culture and Risk: The Organisational Causes of Disasters SPADing is best seen as a systemic problem requiring a systemic solution en 2006-07-07 Karen Clarke Gillian Hardstone Mark Rouncefield Ian Sommerville Trust in Technology: A Socio-Technical Perspective Springer Science & Business Media 9781402042584 138 Ladbroke Grove rail crash#Contributory factors SN109 should be known to all drivers driving out of Paddington as a multi SPADed signal en 2016-12-05 John R. Wilson Beverley Norris Ann Mills People and Rail Systems: Human Factors at the Heart of the Railway CRC Press 9781351912280 Signal awareness aids were present at SPADed signals Related terms en danger signal Anagrams en adps DAPs daps PADS pads APDs PDAs APDS ASPD SaPD Malay ms: Pronunciation Proper noun ms transport ms w:ms:Suruhanjaya Pengangkutan Awam Darat Land Public Transport Commission, a public transport regulatory agency in Malaysia