The US Transportation Collection consists of documents from across all transportation modes with specific focus on research reports from US DOT, state DOTs, and other transportation organizations.
Bookmark this collection: https://rosap.ntl.bts.gov/collection_ust or https://doi.org/10.21949/1530857.
This report presents the results of a Park-and-Pool survey undertaken at selected locations around the San Antonio and Houston, Texas, metropolitan areas. From the survey questionnaires, considerable information was obtained concerning the types of people attracted by Park-and-Pool and what factors prompted them to begin carpooling. Data were also
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There are various methods of pavement material recycling. This report is devoted to hot-mix plant recycling considerations and procedures. The several phases of the hot-mix recycling process are discussed separately, including removal and size reduction of existing asphaltic concrete pavement material. analyzing pavement composition, determining th
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A standard Texas traffic rail Type T202. 27 in. high was strengthened and modified so that it could restrain and redirect school and intercity buses under 60 mph (96.6 km/hr.) 150 angle impacts. A semi-elliptical extruded aluminum rail was mounted on cast aluminum posts to increase the rail height to 42 in. (107 cm). Three crash tests were conducte
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Approximately 65% of Iowa's roads are surfaced with aggregates composed of crushed limestone and/or gravel. Rural Iowan's regard these roads as a very important part of their lives. Therefore, the slide-tape presentation, "Maintaining Granular Surfaced Roads" was developed to aid the motor grader operator to better understand the procedures require
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Eleven male surrogates of general aviation pilots, 25-40 years old, were tested for altitude, +Gz, and fatigue tolerances with and without previous fasting for 24 h. Testing included 2 min of lower body negative pressure (LBNP) at -40 torr (equivalent to +2Gz) after 118 min at 3,810 m chamber altitude and, after returning to ground level pressure,
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In Experiment I, three pilots flew simulated approaches and landings in a fixed-base simulator with a computer-generated-image visual display. Practice approaches were flown with an 8,000-ft-long runway that was either 75, 150, or 300 ft wide; test approaches were to runways with widths of 75, 100, 150, 200, and 300 ft. In Experiment II, 40 pilots
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Six series of human subject evacuation tests were conducted to compare the evacuation rates with two different emergency lighting systems in an aircraft cabin filled with nontoxic white smoke. Cabin emergency lighting and exit signs mounted near the ceiling were almost completely obscured by smoke, which layered most heavily in the upper one-half o
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The intercity bus industry in Virginia was examined to gain information on the status of the industry and to determine the likely impacts of state policy options relating to assistance and deregulation on the industry. The national intercity bus industry and other states' studies of and programs for the industry were also examined. Information conc
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