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原文传递 Market Analysis of Construction Materials with Recommendations for the Future of the Industry.

题名：	Market Analysis of Construction Materials with Recommendations for the Future of the Industry.
作者：	M. M. Bilec; J. Marriott; M. F. Padilla; M. Snyder;
关键词：	construction materials,economic analysis;highway construction, environmental analysis, price trends, human factors, commodity prices;
摘要：	Due to the volatility of current highway construction commodity prices, owners, contractors, and designers are facing serious challenges in both short-term estimating and long-term planning. Among these challenges is significant uncertainty about the prices and availability of critical highway construction materials; steel, for example, increased in price from $600 per ton to over $1400 per ton in just eight years. At the same time, nearly all facets of the infrastructure in the United States require redesign, expansion or repair. Planners need to make decisions which maximize the value of investment dollars while at the same time considering the environmental and human factors associated with that investment. One way to reduce the uncertainty and make better investment decisions is by studying the past, present and future commodity prices and availability. In this research, we focus on commodities for highway construction such as diesel, asphalt, cement, aggregates and steel. Recent economic trends for these commodities show how production, supply and demand affect the US unit prices. Forecasts for the price trends of the commodities are developed. Comparative life cycle assessment (LCA) results are presented. / Title Note: Final rept. / Supplementary Notes: Sponsored by Pennsylvania Dept. of Transportation, Harrisburg. Bureau of Planning and Research. and Federal Highway Administration, Harrisburg, PA. Pennsylvania Div. / Availability Note: Order this product from NTIS by: phone at 1-800-553-NTIS (U.S. customers); (703)605-6000 (other countries); fax at (703)605-6900; and email at orders@ntis.gov. NTIS is located at 5301 Shawnee Road, Alexandria, VA, 22312, USA. / NTIS Prices: PC A08 / NTIS In-house Control Codes: dotour/dotfha;12091,1101
报告类型：	科技报告