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 case study of interstate fencing has indicated several findings which should be reviewed by the Virginia Department of Highways Environmental Quality Division. The major findings are: 1. Approximately 55 deer-vehicle collisions occurred on I-64 between Gum Springs and Charlottesville within the first three months after the highway was opened t
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The purpose of this study was to examine the Warehouse organization as an entity separate from the Purchasing Division. The examination focused on the organization internally and then on its relationships to other organizational structures. This study was proposed on the assumption that people close to an organization can modify its existing progra
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At the request of the Environmental Quality Division, the Environmental and Economics Section of the Virginia Highway Research Council conducted a study to determine the probable socioeconomic and environmental impact of the proposed dual-laning of Route 220 between Fincastle and Eagle Rock. This evaluation was a part of the Highway Department's ef
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The displacement of a threshold from its measured-in-the-quiet value to the value it takes in the presence of another sound is masking. Measurement of that displacement is masking audiometry. And the measurement of displacements at a large number of frequencies produces masking patterns.This paper concerns itself with a procedure that produces mask
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An analytical study of general aviation accident injuries is presented. Needs for improvement of both the crash design of the interior of the cockpit and the structural integrity of the cockpit itself are clearly illustrated. Crash safety design in light aircraft has fallen so far behind that for the automobile that death rates per 100,000,000 pass
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Physiological and biochemical measurements were made on 22 air traffic controllers at O'Hare tower during five days of the heavy traffic evening shift (1600-2400) and five days of the light traffic morning shift (0000-0800).Pulse rates were higher on the evening shift than on the morning shift. Converging approaching traffic was more excitatory tha
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Skin temperature is a sensitive index of the effect of the thermal environment on the seminude man. Skin temperatures and tolerance times from several studies have been utilized in an attempt to establish a relationship between (1) final skin temperature and tolerance time and (2) skin temperature during the early minutes of exposure and final skin
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An annotated bibliography of translations of foreign-language articles is presented. The 22 entries are concerned with studies in aviation medicine, vestibular function, body temperature, color vision, cholinesterase, nystagmus, alcohol, vestibulo-oculomotor function, anatomy, stress and air traffic control work, flight stress, anti-smoke hoods, hi
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The study objective was to identify causes and countermeasuresre levant to pedestrian accidents. Behaviora 1 and descriptive data werecollected by interviews and on-scene observations for over 2,000 pedestrianiccidents in 13 major cities. Subsequent analyses emphasized individualcase causation and accident type classification relevant to countermea
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The purpose of this document has been to present the basic factors concerning urban transit, demand, technology, and usage. The object was not to solve a specific problem or evaluate a specific proposal or system. It is hoped that it will give the reader a better understanding of urban transportation -- why it occurs, how it may be modified, and, t
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This study develops a method of estimating costs for selected Texas accidents using cost data developed for accident involvements in Massachusetts, Illinois, New Mexico and Utah. Given the number and type (car/truck) of vehicles involved and the number of fatally injured persons, accident costs can be derived using the direct cost per involvement a
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Human tolerance to noise levels created by vehicular traffic has been examined. A review of available literature indicated that there are numerous suggested maximum highway noise levels, although general consensus indicates that for a noise beyond 70 dBA, complaints are likely. Most investigations pertain only to daytime noise levels; therefore, it
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Tests were installed during the period 1968-70 to investigate the modification of roadside soil materials restricted by physical or chemical characteristics limiting plant growth, to determine the utility of plant materials for roadside use, and to develop chemical treatments for controlling unwanted vegetation. A plasticity index (PI) value greate
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The study was broken down into two phases. Phase I consisted of a laboratory investigation of test specimens to determine the reliability of the ultrasonic equipment and testing procedure. Phase II was a field study where the knowledge, skills and abilities gained in the laboratory study were applied to actual fabrication being done for the Louisia
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A comparative study of passenger flow rates through Type I and Type A aircraft door exits was made with two 280-passenger groups from the full-scale Lockheed Supersonic Transport mock-up, mounted in a belly-landing attitude.The first load of 280 passengers and 9 crew members evacuated the mock-up through the right side containing four minimum-size
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The distributions of age, weight, height, body weight/body surface area and ponderal index for the accident versus non-accident segments of the active airman population were compared for years 1966-1967.The differences in the distributions of these five status variables in the accident versus non- accident population segments were statistically sig
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An indirect blood pressure measuring device and method were evolved for human use. This system is capable of providing 30 measurements each of systolic and diastolic pressures per minute. The system utilizes two brachial blood pressure cuffs (one on each arm) and fully automatic cycling for each pressure measurement. The main advantages of this sys
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The report describes the evaluation and testing of a high-temperature resistant, transparent, polyimide hood designed to protect aircraft passengers and crew from the effects of toxic fumes, smoke and flame resulting from an aircraft accident. As a 'get-me-out' device, the hood was developed to provide protection of the respiratory system and maint
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The report details the findings of a 4-month study contract directed at reducing the hazards of tank car transportation. A number of shortcomings with existing safety-relief specifications were indicated. A key finding was that the controlling condition in sizing for propane relief should be the liquid feed, or 'upset' car condition, and not vapor
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This study involved two major objectives: 1) determination of necessary size and optimum volume handled of grain merchandising facilities (subterminals) required to take advantage of potential changes in the transportation industry, primarily rail and truck; and 2) definition of impacts of those changes upon the existing grain merchandising system
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