It is imperative in an era of limited budgets for construction and maintenance of streets and highways that a rational approach be followed for managing these funds. One of the first steps of this management process is the adequate and proper design of new streets and roads. In the interest of having a more rational system of design, representatives of the Lexington-Fayette Urban County Government requested the Kentucky Transportation Center to assist in the development of a new pavement design system that more clearly reflects differences in soils, traffic streams, environmental conditions, and materials. In fulfillment of that request, this. brief report compares three available methods of pavement design for flexible pavement and one method of design for rigid pavement. Comments and recommendations based upon pavement design experience and field performance of pavements are also included.

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The contents of this report reflect the views of the author who is responsible for the facts and accuracy of the data presented herein. The contents do not necessarily reflect the official views or policies of the University of Kentucky nor the Lexington-Fayette Urban County Government Administration. This report does not constitute a standard, specification, or regulation.