Ever wondered how much trade is happening between the Zambian provinces? Forget SADC, forget African Union, just within Zambia.
There isn't a direct road between Mongu and Solwezi. It can take up to 17hrs drive for a fisherman from Zambezi plains in Mongu to deliver fish to the lucrative market of Solwezi via Lusaka. If I am not mistaken, that is the case between Kasama and Chipata.
Other than delivery methods to be developed by the new witchcraft course at UNZA, trade between North Western and the bordering Western Provinces is ZERO.
Solution? The $2 billion rail project between Serenje and Chipata, should instead be used to develop these two corridors plus the Southern network.