Manual of Highway-Problem-Oriented Photo Interpretation Using Panchromatic,Normal Color,and Infrared Color Air Photos,

摘要

The manuscript describes,by means of examples,the various problem-oriented areas for which photo interpretation techniques provides useful information. Problem areas discussed under unconsolidated materials include: roadway foundation stability and analysis,structure foundation,slopes,subgrade and excavating characteristics. Problem areas discussed under rock include: roadway foundation stability and subsidence,slopes,and excavating characteristics. Special situation such as mines,tailings,and underclays,and material sources are also discussed. A major effort of the study was to evaluate the various aerial film types including panchromatic,normal color and infrared color photography. (BPR abstract)