His field of specialization is Transport Economics and Logistics and has been a lecturer in these subjects since 1985. Prof Cronje has developed curricula (syllabi) and produced practical study books and study guides for numerous undergraduate and postgraduate courses at UNISA.
He also developed curricula and study material (and presented lectures) for the European Certified Board of Logistics (ECBL) programmes. He is a study leader for Masters and Doctoral students covering research in a wide range of logistics issues.
As a leader in the logistics field, Professor Cronje facilitated in-house skills development programmes in a number of companies worldwide. He has extensive consulting experience in both the public and private sector and has delivered papers at international transport and logistics conferences.