In landlocked South Sudan, one road is a lifeline – and a bottleneck
A good article on South Sudan’s (in)ability to move goods from the Kenyan coast to Juba. It will help you understand why goods in South Sudan are so expensive and how the rainy season contributes to South Sudan’s food woes.
http://www.reuters.com/article/2013/08/30/us-africa-investment-southsudan-idUSBRE97T0GT20130830