Browsing by Author "Coertze, Salome"

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    Aviation English in South African airspace
    (Stellenbosch University, Department of General Linguistics, 2013) Coertze, Salome; Conradie, Simone; Burger, Chris R.; Huddlestone, Kate
    A lack of English proficiency and failure to use standard phraseology played a role in the world’s largest aviation disaster which occurred in Tenerife in 1977 (Tenerife Information Center 2009). As a result, the crucial role of effective communication between pilots and air-traffic controllers (ATCs) came under scrutiny (Cushing 1997), with the International Civil Aviation Organisation (ICAO) implementing English language proficiency standards and compulsory language testing of pilots and ATCs (Tiewtrakul and Fletcher 2010). Consequently, the use of so-called “Aviation English” (AE) was enforced which consists of a range of operationally-relevant language functions and dialogue management as well as formulaic standard phraseology (Shawcross 2008). The study reported on in this paper has two aims: (i) to investigate pilots’ and ATCs’ perceptions of the role of language in air-traffic communication, and (ii) to investigate the use of AE in authentic pilot-ATC communication in South African airspace. In order to address the first aim, an online questionnaire was designed to investigate issues surrounding the role of language in air-traffic communication. A total of 197 pilots and 66 ATCs completed the questionnaire. To address the second aim, approximately 10 hours’ worth of recordings were obtained of on-site air-traffic communication at two airport towers in Gauteng. These were then transcribed and carefully analysed within the framework of Van Es’s (2004) SHELL model and with the aid of a taxonomy compiled on the basis of two previous studies by Cardosi, Brett and Han (1997) and Van Es (2004). The results of the questionnaire indicated that the majority of the respondents support ICAO’s English language proficiency standards and testing. Although the respondents believe that language-related communication problems can cause serious and sometimes fatal incidents, they are confident that the problems are resolved quickly and successfully, thereby avoiding potentially hazardous situations. The results of the analysis of the voice recordings correlated with the results of the questionnaire. Only a small number of transmissions were identified with read-back errors as well as a small number of transmissions containing deviations from AE and standard phraseology. When miscommunications did occur, pilots and ATCs resolved these problems quickly and effectively using AE as well as plain English to successfully negotiate understanding. After discussing in more detail the results of the analyses of the two data sets, a conclusion is provided with some suggestions for further, specifically linguistic, investigations into AE and pilot-ATC communication in South Africa. A brief illustration is also given of the potential value of research, such as that reported here, for benchmarking speech systems for unmanned aircraft (cf. Burger, Barnard and Jones 2011).
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    Aviation English in South African airspace
    (Stellenbosch : Stellenbosch University, 2013-03) Coertze, Salome; Conradie, Simone; Huddlestone, Kate; Stellenbosch University. Faculty of Arts and Social Sciences. Dept. of General Linguistics.
    ENGLISH ABSTRACT: A lack of English proficiency and failure to use standard phraseology played a role in two of the world’s largest aviation disasters in South Germany and Tenerife, respectively. As a result, the crucial role of effective pilot-ATC (air traffic controller) communication came under scrutiny and measures were put in place to ensure that aviation safety is not jeopardised by language-related problems. For example, the International Civil Aviation Organisation (ICAO) implemented English language proficiency standards and testing. The study reported in this thesis investigated the use of Aviation English and standard phraseology, which is used in radiotelephony communication by the operational aviation community. Aviation English consists of a range of operationally-relevant language functions and dialogue management, e.g. orders, requests, and offers to act; a blend of formulaic standard phraseology and plain or everyday speech if and when a non-routine situation occurs. Data on pilots’ and ATCs’ perceptions of the role of language in air traffic communication, their perspectives on English as lingua franca in aviation, and English language proficiency standards and testing were collected by means of a questionnaire. The respondents included full-time professional pilots (domestic and international flights), part-time professional pilots and pilots who fly for leisure, and ATCs in Air Traffic Navigation Service units that handle domestic and/or international flights. Recordings of on-site air traffic communication from two airport towers were obtained and were used to study the use of Aviation English and standard phraseology in pilot-ATC communication in South Africa. The results indicated that the majority of pilots and ATCs believe that language-related problems can cause fatal accidents and serious incidents. Pilots and ATCs in South Africa do experience threatening and potentially hazardous situations as a result of communication problems, however, they are confident that communication problems are resolved quickly and successfully in order to avoid accidents. The analysis of the voice recordings correlated with the pilots’ and ATCs’ perceptions that in spite of communication problems (languagerelated and non-language-related) occurring in South African airspace, pilots and ATCs have strategies in place to resolve them effectively and they are also able to use plain English to negotiate understanding and meaning. The majority of the respondents indicated that they agree that English should be used as the lingua franca in aviation around the world and they regard the English language proficiency of South African pilots and ATCs as satisfactory. The majority support ICAO’s English language proficiency standards and testing. The recordings presented a small percentage of transmissions with read-back/hear-back errors, but a substantial number of instances of radio distortions and background noise which interfered with the intelligibility of the transmissions, correlated with the results of the questionnaire. A small percentage of transmissions contained deviations from Aviation English and standard phraseology and/or the use of plain English. The researcher is of the opinion that this initial investigation into Aviation English serves to indicate some avenues for fruitful linguistic investigations into Aviation English and pilot-ATC communication in South Africa.