Excerpt from Proceedings of the American Railway Engineering Association, 1984, Vol. 85: This Volume Includes All the Committee Reports, Reports on Research Projects, Addresses, Monographs, and Memoirs Originally Published in Area Bulletins 694 to 698, January 1984 to December 1984 Eastbound freight train about 2 miles west of Xian, China, station, May 1983. Local freight is in background. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.