Abstract
A procedure to form a strip digital terrain model has been developed by using terrain points located on strip meshes, composed of two dimensional array along alignment and perpendicular to alignment. The strip digital terrain model has the following practical merits.
(1) It is able to interpolate height of any point so efficiently by using a small amount of input data.
(2) It is not necessary to remesure the terrain points even if a part of route is modified.
(3) Fore-processing to measure terrain points and the subsequent processing for design can be executed automatically.
(4) It is very effective for automatic calculation of earth works in highway design.
