Το λεξιλόγιο αποτελεί παραλλαγή του λεξιλογίου «Θεματικές Επιστημονικών Πεδίων ΕΚΤ», ειδικά διαμορφωμένη για την κατηγοριοποίηση των τεκμηρίων του OpenArchives.gr
isi - Transportation Science & Technology covers resources on all aspects of the movement of goods and peoples as well as the design and maintenance of transportation systems. Topics covered in this category include logistics, vehicular design and technology, and transportation science and technology. Note: Resources that concentrate on transportation safety, policy, economics, and planning appear under the TRANSPORTATION category