Confronted with increased congestion of seaports recently exacerbated by Covid-19, many nations and Regional Economic Communities in Africa are launching dry port development projects that aim at shifting customs, logistics services and cargo handling activities to inland terminals situated in locations far from ports. However, in order to maximize efficiency of such structures, their connection to seaports need to be ensured by short and fast access lines that should be integrated in their design. In this regard, railway transport is unsurpassed in terms of its speed, time savings and ability to travel long distances. Unfortunately, this mode of transport is also inadequate or non-existent in many parts of Africa, often constrained by difficult morphological conditions of the territories where railway tracks must be laid.