Abstract
Rapid methods of terrain appraisal are becoming increasingly important in developing countries in helping transport planners and highway engineers to make early and effective decisions about the location and design of new roads. Recent developments in the collection and analysis of terrain data recorded by remote sensing systems have resulted in a new era in the application of surveillance techniques to the planning, design, construction and maintenance of highways in different overseas environments. This report discusses the advantages of using these new remote sensing methods for highway engineering surveys, and gives examples of recent applications of the techniques to projects in Botswana, Ethiopia and Nepal. (Author/publisher)