"The study reported herein was a preliminary investigation made to provide guidance for a planned, longer range research program to develop and apply new and existing methods for measuring and predicting in quantitative and semiquantitative terms for effects of environmental factors on ground vehicles operating in Southeast Asia"--Vol. 1, p. I-1.

Under ARPA Order No. 351-62. Errata sheet inserted. "October 1962."

Preliminary survey -- Appendix A. Results of existing data and literature survey -- Appendix B. Soil classification -- Appendix C. Soil trafficability -- Appendix D. Vegetation -- Appendix E. Surface geometry -- Appendix F. Hydrologic geometry -- Appendix G. Weather and climate -- Appendix H. Evaluation of road observations -- Appendix I. Gama goat tests.