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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.

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Showing 34241 - 34260 of 36710 results
  • The development of a methodology for transportation safety planning in Virginia
    The development of a methodology for transportation safety planning in Virginia.
    Simpson, Clinton H ;
    Plevin, Amy J
    1980-01-01 | PDF
    Senate Bill 85, passed by the General Assembly in 1978, renamed the former Highway Safety Division of Virginia the Department of Transportation Safety (VDTS) and authorized it to assume control over safety activities in all modes of transportation. This volume is the first attempt at formulating a methodology for transportation safety planning. Fut ...
  • Development of a CostEffectiveness Model for Guardrail Selection Vol I Technical Documentation
    Development of a Cost-Effectiveness Model for Guardrail Selection: Vol. I. Technical Documentation
    Calcote, Lee R.
    1980-01-01 | PDF
    This research was conducted to develop a cost-effectiveness model for guardrail selection that includes cost parameters for eleven (11) guardrail configurations and criteria for analysis of system effectiveness under various dynamic impact conditions. Vehicle classes include 2250-lb (1021-kg) and 4500-lb (2041-kg) vehicles. Accident severities were ...
  • Variations in skid resistance over time
    Variations in skid resistance over time.
    Runkle, Stephen N ;
    Mahone, David C
    1980 | PDF
    The purpose of this project was to quantify the magnitude of changes in skid resistance over time, to isolate the variables that seem most important with respect to the changes, and, to the degree possible, formulate a model for converting skid resistance values obtained under a given set of conditions to the values that would be measured under a d ...
  • Highway Travel Trends during the 1970s 1980
    Highway Travel Trends during the 1970's (1980)
    United States. Federal Highway Administration
    1980-01-01 | PDF
    No Description
  • Early road location the key to discovering historic resources
    Early road location : the key to discovering historic resources?.
    Pawlett, Nathaniel Mason ;
    Lay, K. Edward
    1980-01-01 | PDF
    The paper describes a unique methodology used in surveying and documenting architecture along eighteenth century road systems in Virginia which could be used as a prototype in other areas. In the method described the historian geographer, and architectural historian collaborate in research in primary sources such as court records, as well as second ...
  • An evaluation of the effect of level of service and cost on demand for intercity bus travel final report
    An evaluation of the effect of level of service and cost on demand for intercity bus travel : final report.
    Purdy, Jeffrey E ;
    Hoel, Lester A
    1980-01-01 | PDF
    This report describes an evaluation of the effect on intercity bus ridership of changes in frequency of service and cost. The study was based on a comparison of travel between 19 selected cities in Virginia served by air, bus, or rail. These modes were compared with highway travel by auto using various assumptions of energy availability. The effect ...
  • HPMS Case Study Procedural Manual Truck Weight 1980
    HPMS Case Study Procedural Manual - Truck Weight (1980)
    United States. Federal Highway Administration
    1980-01-01 | PDF
    No Description
  • Investigation of fatigue failure in bituminous base mixes
    Investigation of fatigue failure in bituminous base mixes.
    Maupin, G. W
    1980-01-01 | PDF
    A correlation between the results obtained with the fatigue test and those from the indirect tensile test on two base mixes was attempted in anticipation of the possible use of the latter test to design base mixes for maximum fatigue life. Two base mixes at several asphalt contents were tested at two test temperatures. Flexural fatigue tests and in ...
  • Use of fly ash in concrete by state transportation and highway departments
    Use of fly ash in concrete by state transportation and highway departments.
    Halstead, Woodrow J
    1980-01-01 | PDF
    This report provides a summary of replies to a questionnaire on the use of fly ash and blended cement (Type IP) in concrete. The questionnaire was directed to members of the Subcommittee on Materials of the American Association of State Highway Officials.The states' representatives on this subcommittee are usually the state materials engineers. The ...
  • Development of a CostEffectiveness Model for Guardrail Selection Vol II Users Manual
    Development of a Cost-Effectiveness Model for Guardrail Selection: Vol. II. User's Manual
    Calcote, Lee R.
    1980-01-01 | PDF
    The research was conducted to develop a cost-effectiveness model for guardrail selection that includes cost parameters for eleven (11) guardrail configurations and criteria for analysis of system effectiveness under various dynamic impact conditions. This volume is a user's manual for applying the cost-effectiveness computer programs for (1) select ...
  • Efficiency in bus stop location and design
    Efficiency in bus stop location and design.
    Lin, Brian Bin-Mau ;
    Demetsky, Michael J
    1980-01-01 | PDF
    The research reported here identified those elements associated with the location and design of bus stops that affect the efficiency of transit and traffic operations, and developed guidelines to assist transportation engineers and planners in technical and policy decisions concerning bus stops in urban areas. Two nationwide questionnaire surveys, ...
  • Feasibility of using nopassingzone signs on twolane highways in Virginia
    Feasibility of using no-passing-zone signs on two-lane highways in Virginia.
    Robertson, R. N
    1980-01-01 | PDF
    The Department had placed no-passing-zone signs on selected routes at numerous narrow bridge delineations, and was considering use of the signs on all two-lane primary routes. Because accident and cost data for Virginia were limited, information was compiled from evaluations conducted in other states.
  • Community perception of noise barriers volume II
    Community perception of noise barriers : volume II.
    Perfater, Michael A
    1980-01-01 | PDF
    The report presents the findings of a study of eight noise barriers installed along interstate and primary roads. A total of 488 interviews were conducted in eight communities adjacent to the barriers to determine citizens' perception of the effectiveness- of these structures. For all eight sites, 57% of the people interviewed were satisfied with t ...
  • Comparison of highway striping materials
    Comparison of highway striping materials.
    Shepard, Frank D
    1980-01-01 | PDF
    This study was undertaken to investigate problems relating to the durability of pavement striping materials used by the Department. The research was limited to an evaluation of the durability and retroreflectance characteristics of selected paints, thermoplastics, and preformed tapes recommended by the Materials Division for use as centerline and e ...
  • Development of Positively Steered Radial Truck
    Development of Positively Steered Radial Truck
    Scales, Brian T
    1980-01-01 | PDF
    Investigation of derailments have revealed two shortcomings of existing three-piece trucks: poor tracking on curves and hunting on tangent track. Design and installation requirements were developed for an innovative primary suspension radial truck. An initial design incorporated an Ackermann linkage for positive steering of wheelsets. Prototype tru ...
  • An Analysis of Title III of the Staggers Rail Act and Related Provisions
    An Analysis of Title III of the Staggers Rail Act and Related Provisions
    Tolliver, Denver D
    1980-01-01 | PDF
    This paper presents an analysis of Title III of the Staggers Rail Act entitled Railroad Cost Determination.
  • Planning for pedestrians within the highway environment
    Planning for pedestrians within the highway environment.
    Arnold, E. D ;
    Robins, Roni
    1980-01-01 | PDF
    The guidelines currently utilized to evaluate the need for pedestrian accommodations in suburban areas were reviewed and summarized. Information was obtained from the literature, a mail survey, and personal interviews. Recommendations were developed for use in pedestrian planning. A handbook was prepared to assist planners and engineers in deciding ...
  • Evaluation of parking management strategies for urban areas final report
    Evaluation of parking management strategies for urban areas : final report.
    Parker, Martin R ;
    Demetsky, Michael J
    1980-01-01 | PDF
    The state of the art of parking management in urban areas in the United States was established using an extensive review of the literature and a nationwide questionnaire survey that was distributed to 458 city officials, 173 of whom responded. Based on the information thus obtained, key elements of parking management were identified including group ...
  • Evaluation of chevron patterns for use on traffic control devices in street and highway work zones
    Evaluation of chevron patterns for use on traffic control devices in street and highway work zones.
    Cottrell, Benjamin H
    1980 | PDF
    The chevron pattern consists of alternate orange and white stripes that form an arrow pointing in the direction in which traffic is being diverted. The objectives of this research were (1) to select the most effective design for the chevron pattern, and (2) to evaluate the effectiveness of selected chevron designs under road conditions as compared ...
  • Influence of handling on the effectiveness of antistripping additives
    Influence of handling on the effectiveness of antistripping additives.
    Maupin, G. W
    1980 | PDF
    The purpose of this investigation was to determine the influence of the procedures used in handling asphalt-additive blends on the effectiveness of antistripping additives in asphaltic concrete. The additives were blended with the asphalt cements before shipment by tank truck to the hot mix plants. Laboratory tests were performed on samples of the ...
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