A Review of the Present Status of the Application of Photogrammetry, 
ce Digital Terrain Model and Semiautomated Photogrammetric Technique to 
Highway and Railway Design and the Trend of Further Development. 
Report of the Working Group IV/1, Highway and Railway Engineering. 
ce 
XIII Congress of the International Society for Photogrammetry 
Helsinki 1976. Commission IV Working Group 1. 
Group Paper. 
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WOrKING 
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