"Keywords in this Thesaurus are referred to as preferred terms. Preferred terms are used in indexing the Australian Transport Index (ATRI) and are shown in bold type. Non-preferred terms are not used for indexing and are shown in italics; their role in the Thesaurus is to lead to the preferred term. Terms in the Thesaurus are listed in a single alphabetical sequence and appear in word-by-word order, so that 'Access road' appears before 'Accessibility'. This Thesaurus is designed to assist Australian researchers to access Australian and overseas literature on land transport. However, it may also be useful to those involved in metadata and knowledge management within the land transport arena."