A reliable, safe, and cost effective transportation infrastructure - including rail and air transportation - to support the intra-continental movement of people and products is another critical component of economic development for emerging markets.  Upgrading the transportation infrastructure in Sub-Sahara Africa will unleash the Continent's ability to move its vast, untapped natural resources - including minerals and agriculture products - to interconnected African markets and to coastal ports for export to Europe, Asia, and the Americas while at the same time enabling Sub-Sahara African countries to control and leverage most of the value creation chain for the products that they produce. Consequently, the PAC-DBIA's recommended strategy for developing this area includes: "...financing for rail locomotive upgrades and rail infrastructure and rehabilitation; developing robust air route networks; improving aviation safety; training an upskilled workforce; and encouraging adoption and implementation of the Cape Town Convention on International Interests in Mobile Equipment."