Road freight transport plays an indispensable role in international economic cooperation and foreign trade. For short and medium distances in particular, road freight transport constitutes a predominant share of overall traffic, but it also plays a significant role in long distance haulage, where time is more of an issue. Therefore, efforts should be made to minimize any physical or administrative barriers hampering international road freight transport, given the integral part it plays in the global trade logistics industry. This study was motivated by a realization that, in the absence of...