Countries in Southern Africa (South Africa, Botswana, Namibia, Mozambique, Malawi, Zambia, Tanzania, Angola, Mauritius, Zimbabwe, Lesotho, Swaziland) have signed the SADC Transport Protocol which requires them to harmonise their traffic sign systems. The SADC traffic sign system is in use throughout South Africa and is gradually being adopted in the other SADC countries. A sample direction sign is illustrated. The typeface is DIN 1451. In my opinion the stroke width is too narrow and the letters are spaced too far apart (overcompensating for the night-time halation effect), but this is the standard. There is also a bold version for use with black lettering on white backgrounds, and a condensed "Narrow" version. As part of my work for the Government of Tanzania I have been promoting the use of the SADC sign system amongst road authorities. The example illustrated was produced using some South African software that automates the design of traffic signs. Although this is not as powerful as some British sign design software that I know of, it is fairly simple to use. In my work as a traffic signs consultant I have helped choose typefaces for official sign systems in Nepal, Bangladesh, Kerala, Ghana, and Uganda. The Transport typeface was selected for the "english" legend and we used a locally-available typeface for the "local" language - after readability tests with a panel of local drivers. Contact me if you need more information on any of these matters.