"The Current Road Classification System was developed over 30 years ago and has six road classes named from Classes A to E and a Special Purpose Road class. Each class is defined by the functional criteria related to administrative level of centres the roads connect. The system covers only 61,936km of the entire road network of 160,886km while the rest 98,950km are not classified.
(...) The current road classification system was developed over 30 years ago. Since then the road network has grown rapidly and changed in character. (...) The new classification system covers all public roads and extends to the presently unclassified rural and urban roads. The main thrust of the approach is to make the classification more objective and consistent by specifying quantifiable parameters (traffic, population, spacing) to guide the selection of appropriate road classes. It is also a dynamic system where road classes can be periodically reviewed to adapt to changes in traffic, function etc. The proposed Road Classification System sees Kenya's road network as being composed of two distinct networks i.e. the Rural Roads Network (outside Cities and Municipalities) and the Urban Roads Network (within Cities and Municipalities) for all public roads with 9m or more road reserves. Although the new classification system retains A,B,C,D and E classes, the system has been extended to include additional classes. It should be noted that presently classified roads do not necessarily retain their road classes under the new classification."