DAR ES SALAAM, July 27 -- ECONOMIC transformation is often assessed through indicators such as growth rates, export earnings, investment inflows and rising incomes. While these metrics offer an important measure of progress, they tell only part of the story.

Sustained economic growth depends not only on what a country produces or attracts in investment, but also on how efficiently people, goods and services move within and beyond its borders. Efficient transport systems are fundamental to economic activity.

Farmers need reliable access to markets. Manufacturers depend on steady supply chains. Exporters require costeffective routes to regional and international customers. Investors, meanwhile, look closely at infrastructure quality, logi...