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Volpe Center

rosaP Repository & Open Science Access Portal

This collection is the knowledge repository of digitized U.S. DOT Volpe Center staff-authored reports, journal articles, conference papers, and archives. Housing more than 50 years of transportation research, the collection includes more than 5,000 U.S. DOT Volpe Center-authored publications. More information about the John A. Volpe National Transportation Systems Center is available at Volpe National Transportation Systems Center. Bookmark this collection at: https://rosap.ntl.bts.gov/collection_volpe or https://doi.org/10.21949/1530858.

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Showing 4141 - 4160 of 5187 results
  • User Delay Cost Model and Facilities Maintenance Cost Model for a Terminal Control Area Volume 1 Model Formulation and Demonstration
    User Delay Cost Model and Facilities Maintenance Cost Model for a Terminal Control Area : Volume 1. Model Formulation and Demonstration
    Greene, L. B. ;
    Witt, J.
    1978-05-01 | PDF
    The User Delay Cost Model (UDCM) is a Monte Carlo computer simulation of essential aspects of Terminal Control Area (TCA) air traffic movements that would be affected by facility outages. The model can also evaluate delay effects due to other factors, such as weather, aircraft schedule intensity, and approach minima. Although the Boston TCA was sel ...
  • User Delay Cost Model and Facilities Maintenance Cost Model for a Terminal Control Area Volume 2 Users Manual and Program Documentation for the User Delay Cost Model
    User Delay Cost Model and Facilities Maintenance Cost Model for a Terminal Control Area : Volume 2. User's Manual and Program Documentation for the User Delay Cost Model
    Greene, L. B. ;
    Witt, J.
    1978-05-01 | PDF
    The User Delay Cost Model (UDCM) is a Monte Carlo simulation of certain classes of movement of air traffic in the Boston Terminal Control Area (TCA). It incorporates a weather module, an aircraft generation module, a facilities module, and an air control module to simulate delays, resulting from facility outage, imposed on four user classes: Air Ca ...
  • Seven Experiment Designs Addressing Problems of Safety and Capacity on TwoLane Rural Highways Volume 2 Experimental Design to Develop and Evaluate Dynamic Aids for Narrow Bridges
    Seven Experiment Designs Addressing Problems of Safety and Capacity on Two-Lane Rural Highways : Volume 2. Experimental Design to Develop and Evaluate Dynamic Aids for Narrow Bridges
    King, G. F. ;
    Abramson, P.
    1978-05-01 | PDF
    A large number of bridges on two-lane rural highways are narrow bridges. While there is no universally accepted definition of this type of bridge, it is generally considered to be one where the roadway and/or shoulders narrow significantly. It has been recognized that this situation produces accidents with either the bridge structure, oncoming vehi ...
  • Estimation of Traffic Variables Using Point Processing Techniques
    Estimation of Traffic Variables Using Point Processing Techniques
    Lopez, R. L. ;
    Houpt, P. K.
    1978-05-01 | PDF
    An alternative approach to estimating aggregate traffic variables on freeways--spatial mean velocity and density--is presented. Vehicle arrival times at a given location on a roadway, typically a presence detector, are regarded as a point or counting Poisson process whose rate is a function of the state of the traffic at every instant of time. More ...
  • Performance Characteristics of Automotive Engines in the United States First Series Report No 19 1975 Ford Windsor 351 CID 57 Liters 2V
    Performance Characteristics of Automotive Engines in the United States : First Series - Report No. 19 - 1975 Ford Windsor 351 CID (5.7 Liters), 2V
    Marshall, W. F. ;
    Stamper, K. R.
    1978-05-01 | PDF
    Experimental data were obtained in dynamometer tests of a 1975 Ford 351 CID, 2V, Windsor engine to determine fuel consumption and emissions (hydrocarbon, carbon monoxide, oxides of nitrogen) at steady-state engine-operating modes. The objective of the program is to obtain engine performance data for estimating emissions and fuel economy for varied ...
  • ComputerAssisted Traffic Engineering Using Assignment Optimal Signal Setting and Modal Split
    Computer-Assisted Traffic Engineering Using Assignment, Optimal Signal Setting, and Modal Split
    Gershwin, Stanley B. ;
    Little, J. D. C.
    1978-05-01 | PDF
    Methods of traffic assignment, traffic signal setting, and modal split analysis are combined in a set of computer-assisted traffic engineering programs. The system optimization and user optimization traffic assignments are described. Travel time functions are presented for freeways, freeway entrance ramps, and signalized streets. Both single-vehicl ...
  • Performance Characteristics of Automotive Engines in the United States First Series Report No 14 1975 Mazda Rotary 70 CID 11 Liters 4V
    Performance Characteristics of Automotive Engines in the United States : First Series - Report No. 14 - 1975 Mazda Rotary 70 CID (1.1 Liters), 4V
    Marshall, W. F. ;
    Stamper, K. R.
    1978-05-01 | PDF
    Experimental data were obtained in dynamometer tests of a 1975 Mazda 70 CID, 4V rotary engine to determine fuel consumption and emissions (hydrocarbon, carbon monoxide, oxides of nitrogen) at steady-state engine-operating modes. The objective of the program is to obtain engine performance data for estimating emissions and fuel economy for varied en ...
  • Coupling System Design Optimization A Survey and Assessment of Automatic Coupling Concepts for Rail Freight Cars Volume 2 Text and Appendices
    Coupling System Design Optimization : A Survey and Assessment of Automatic Coupling Concepts for Rail Freight Cars : Volume 2. Text and Appendices.
    Nyquist, A. E. ;
    Boydston, G. D.
    1978-05-01 | PDF
    The purpose of this study is to provide an independent identification, classification, and analysis of significant freight car coupling system concepts offering potential for improved safety and operating costs over the present system. The basic method of approach was to make a comprehensive search as a prerequisite to establishing significant coup ...
  • Performance Characteristics of Automotive Engines in the United States Second Series Report No 5 1977 Ford 140 CID 23 Liters 2V
    Performance Characteristics of Automotive Engines in the United States : Second Series - Report No. 5 - 1977 Ford 140 CID (2.3 Liters), 2V
    Koehler, Don E. ;
    Chamberlain, T. W.
    1978-05-01 | PDF
    Experimental data were obtained in dynamometer tests of a 1977 Ford 2.3 liter (140 CID) engine to determine fuel consumption and emissions (hydrocarbon, carbon monoxide, oxides of nitrogen) at steady-state engine-operating modes. The objective of the program is to obtain engine performance data for estimating emissions and fuel economy for varied e ...
  • Near Term Weight Reduction Potential in a 1977 General Motors B Body Vehicle
    Near Term Weight Reduction Potential in a 1977 General Motors B Body Vehicle
    Hurter, Donald A. ;
    Gott, Philip G.
    1978-05-01 | PDF
    The report presents an analysis of the potential for weight reduction through lightweight material and component substitutions in a 1977 General Motors Corporation B body vehicle. The changes were limited to those that appeared producible in the 1980 to 1985 time frame. The first portion of the analysis involved gathering weight data on selected co ...
  • FlywheelDiesel Hybrid Power Drive Urban Bus Vehicle Simulation
    Flywheel/Diesel Hybrid Power Drive: Urban Bus Vehicle Simulation
    Larson, Glenn S. ;
    Zuckerberg, Harry
    1978-05-01 | PDF
    A flywheel/diesel hybrid power drive configuration for urban transit bus application is investigated using a computer simulation model. The hybrid uses continuously variable ratio transmissions and a control subsystem to optimize fuel consumption in an "on-off" mode of engine operation. The system is projected to use 50% less fuel than a diesel-alo ...
  • Analysis of Litigation Initiated to Prevent Paratransit Implementation
    Analysis of Litigation Initiated to Prevent Paratransit Implementation
    Gundersen, Richard G.
    1978-05-01 | PDF
    Implementation of subsidized paratransit services often affects business interests of existing transportation companies. At least a hlf dozen of these compaines have responded with lawsuuits seeking either to prevent implementation of this competitive service or to obrain compensation for loss of business. This study identifies and describes the le ...
  • Performance Characteristics of Automotive Engines in the United States First Series Report No 15 1975 Dodge Colt 98 CID 16 Liters 2V
    Performance Characteristics of Automotive Engines in the United States : First Series - Report No. 15 - 1975 Dodge Colt 98 CID (1.6 Liters), 2V
    Chamberlain, T. W. ;
    Koehler, Don E.
    1978-05-01 | PDF
    Experimental data were obtained in dynamometer tests of a 1975 Dodge Colt 1.6 liter (98 CID) engine to determine fuel consumption and emissions (hydrocarbon, carbon monoxide, oxides of nitrogen) at steady-state engine-operating modes. The objective of the program is to obtain engine performance data for estimating emissions and fuel economy for var ...
  • Evaluation Plan The Minneapolis Ridesharing Commuter Services Demonstration
    Evaluation Plan - The Minneapolis Ridesharing Commuter Services Demonstration
    Sherman, Len
    1978-05-01 | PDF
    In April 1977, the Metropolitan Transit Commission initiated a two-year demonstration project designed to increase work trip-vehicle occupancy at selected employment sites in the Twin Cities region. Key elements of this demonstration which differentiate it from previous ridesharing promotion efforts are the reliance on a regional transit agency to ...
  • Maritime Communication Experiments and SearchandRescue Evaluations with the NASA ATS6 Satellite Volume 1 Summary
    Maritime Communication Experiments and Search-and-Rescue Evaluations with the NASA ATS-6 Satellite : Volume 1. Summary.
    Engels, Peter D. ;
    Duncombe, C.B.
    1978-05-01 | PDF
    Maritime satellite communication experiments were conducted by this Center using the NASA Applications Technology Satellite-Number 6 (ATS-6) from September 1974 through April 1975. The objectives were: to acquire a base of satellite technology knowledge applicable to ship-satellite-shore system design; and to demonstrate, by means of coordination a ...
  • Performance Characteristics of Automotive Engines in the United States Second Series Report No 4 1976 Chevrolet 85 CID 14 Liters IV
    Performance Characteristics of Automotive Engines in the United States : Second Series - Report No. 4 - 1976 Chevrolet 85 CID (1.4 Liters), IV.
    Koehler, Don E. ;
    Chamberlain, T. W.
    1978-05-01 | PDF
    Experimental data were obtained in dynamometer tests of a 1976 Chevrolet 85 CID engine to determine fuel consumption and emissions (hydrocarbon, carbon monoxide, oxides of nitrogen) at steady-state engine-operating modes. The objective of the program is to obtain engine performance data for estimating emissions and fuel economy for varied engine se ...
  • Seven Experiment Designs Addressing Problems of Safety and Capacity on TwoLane Rural Highways Volume 6 Experimental Design for Comparative Evaluation of WarningAdvisory and Regulatory Traffic Control Devices
    Seven Experiment Designs Addressing Problems of Safety and Capacity on Two-Lane Rural Highways : Volume 6. Experimental Design for Comparative Evaluation of Warning-Advisory and Regulatory Traffic Control Devices
    King, G. F. ;
    Abramson, P.
    1978-05-01 | PDF
    The overuse of regulatory type signing on highways has been found to cause motorists to ignore all signing. In this experimental design, advisory-warning signs, regulatory signs and a combination of the two types will be tested in four experiments. The first experiment will compare curve signing; the second, intersection signing; the third, no pass ...
  • Performance Characteristics of Automotive Engines in the United States First Series Report No 18 1976 Ford 400 CID 66 Liters 2V
    Performance Characteristics of Automotive Engines in the United States : First Series - Report No. 18 - 1976 Ford 400 CID (6.6 Liters), 2V
    Marshall, W. F. ;
    Stamper, K. R.
    1978-05-01 | PDF
    Experimental data were obtained in dynamometer tests of a 1976 Ford 400 CID, 2V engine to determine fuel consumption and emissions (hydrocarbon, carbon monoxide, oxides of nitrogen) at steady-state engine-operating modes. The objective of the program is to obtain engine performance data for estimating emissions and fuel economy for varied engine se ...
  • Performance Characteristics of Automotive Engines in the United States First Series Report No 20 1975 Chevrolet 350 CID 57 Liters
    Performance Characteristics of Automotive Engines in the United States : First Series - Report No. 20 - 1975 Chevrolet 350 CID (5.7 Liters) ...
    Chamberlain, T. W. ;
    Koehler, Don E.
    1978-05-01 | PDF
    Experimental data were obtained in dynamometer tests of a 1975 Chevrolet 350 CID engine to determine fuel consumption and emissions (hydrocarbon, carbon monoxide, oxides of nitrogen) at steady-state engine-operating modes. The objective of the program is to obtain engine performance data for estimating emissions and fuel economy for varied engine s ...
  • Seven Experiment Designs Addressing Problems of Safety and Capacity on TwoLane Rural Highways Volume 5 Experimental Design for Vehicle Equivalency and Capacity Including Effects of Commercial and Recreational Vehicles on Rural NonControlled Access
    Seven Experiment Designs Addressing Problems of Safety and Capacity on Two-Lane Rural Highways : Volume 5. Experimental Design for Vehicle Equivalency and Capacity Including Effects of Commercial and Recreational Vehicles on Rural Non-Controlled Access
    King, G. F. ;
    Abramson, P.
    1978-05-01 | PDF
    The objective of the experiment is to establish the influence of various types of trucks, buses and recreational vehicles on traffic flow on rural non-controlled access highways. This influence is due primarily to the low speeds which are common for these types of vehicles, particularly when negotiating grades.
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