Journal of Transportation Engineering, Part A: Systems: Recent submissions

Now showing items 2961-2980 of 4147

    • Testing and Analysis of Steel Pipe Segments 

      Magdi Mohareb; G. L. Kulak; A. Elwi; D. W. Murray (American Society of Civil Engineers, 2001)
      Steel pipelines buried in cold regions are subject to thermally induced axial loads, hoop stresses caused by the action of the fluids they convey, and differential settlements caused by factors such as thaw settlements, ...

    • Effect of Mixture Compaction on Indirect Tensile Stiffness and Fatigue 

      A. M. Hartman; M. D. Gilchrist; G. Walsh (American Society of Civil Engineers, 2001)
      When constructing laboratory samples of bituminous mixture that are intended to have the same characteristics as the in situ pavement layer, the most important factor to consider is compaction. It is widely accepted that ...

    • Assessment of Asphalt Specimen Homogeneity 

      Richard H. McCuen; Haleh Azari (American Society of Civil Engineers, 2001)
      The inhomogeneity of aggregates in an asphalt concrete pavement can be a primary factor in its deterioration. Statistical tests are useful for judging the extent of inhomogeneity. However, their use requires knowledge of ...

    • Geometric Design Projects for Highways: An Introduction, 2nd Ed. 

      Brian Wolshon (American Society of Civil Engineers, 2001)

    • Stresses and Deformation of Buried Pipeline under Wave Loading 

      D. S. Jeng; P. F. Postma; Y. S. Lin (American Society of Civil Engineers, 2001)
      An evaluation of wave-induced pore pressures and effective stresses has been recognized by marine geotechnical engineers as an important factor in the design of offshore pipelines. Most previous investigations for the ...

    • Resilient Response of Recycled Concrete Road Aggregates 

      A. Nataatmadja; Y. L. Tan (American Society of Civil Engineers, 2001)
      This paper presents the results of a recent investigation on the performance of four recycled concrete aggregates (RCAs). The materials, obtained by crushing concrete with compressive strength ranging from 15 MPa to 75 ...

    • Estimation of Mobile Emissions Reduction from Using Electronic Tolls 

      Anthony A. Saka; Dennis K. Agboh; Simon Ndiritu; Richard A. Glassco (American Society of Civil Engineers, 2001)
      The Baltimore Metropolitan Area is classified as a severe nonattainment area under the Clean Air Act Amendments of 1990. Consequently, it operates on a stringent emissions budget and is mandated to embark on mitigation ...

    • Integrated Model for Optimizing Orientation of Two-Runway Configurations 

      Ragab M. Mousa (American Society of Civil Engineers, 2001)
      This paper presents an integrated computer model (WNDROS2) for optimizing runway orientation at airports having two-runway configurations. In this model, mathematical formulation is applied to transfer circles and radial ...

    • Establishing Practical Approach for Design Consistency Evaluation 

      Y. Hassan; T. Sayed; V. Tabernero (American Society of Civil Engineers, 2001)
      The concept of design consistency has lately been gaining greater acceptance in North America. Considerable research work is being carried out and steps have already been taken to incorporate this concept into the design ...

    • Improvements to Sight Distance Algorithm 

      David J. Lovell; Jyh-Cherng Jong; Peter C. Chang (American Society of Civil Engineers, 2001)
      This paper describes improvements developed for an existing algorithm that calculates sight distance profiles based on horizontal geometry. Exact expressions are developed for vector derivatives for plane curves including ...

    • Analysis of Time Headways on Urban Roads: Case Study from Riyadh 

      Ali S. Al-Ghamdi (American Society of Civil Engineers, 2001)
      The headway between vehicles in a traffic stream is of fundamental importance in traffic engineering applications. Previous research in this subject has focused on modeling theoretical distributions for low and medium ...

    • Regression Model for Back-Calculation of Rigid-Pavement Properties 

      T. F. Fwa; S. Chandrasegaran (American Society of Civil Engineers, 2001)
      Computer algorithms and graphical solutions for deflection-based closed-form back-calculation of rigid pavement properties are available. However, a solution in the form of regression equations would have useful practical ...

    • Comparison among Computer Packages in Providing Timing Plans for Iowa Arterial in Lawrence, Kansas 

      Xiao Kuan Yang (American Society of Civil Engineers, 2001)
      In traffic engineering, three computer packages have been widely used in providing coordinated signal timing plans for arterials. They are SYNCHRO, TRANSYT-7F, and PASSER. These packages were developed at different periods ...

    • Evaluating Reliability of TRANSYT-7F Optimization Schemes 

      Byungkyu “Brian” Park; Nagui M. Rouphail; Jeffrey P. Hochanadel; Jerome Sacks (American Society of Civil Engineers, 2001)
      This paper investigates the reliability of TRANSYT-7F optimal solutions from two perspectives: (1) the effect of the selected optimization criterion on the values of various system performance measures; and (2) the extent ...

    • Optimizing Highway Grades to Minimize Cost and Maintain Traffic Speed 

      Yusin Lee; Juey-Fu Cheng (American Society of Civil Engineers, 2001)
      In practice, the task of designing the vertical alignment of a highway is done manually by an experienced engineer. As a result, the work is both time and resource consuming and relies heavily on human expertise. This work ...

    • Study of Noise Barrier Life-Cycle Costing 

      Susan M. Morgan; Dianne H. Kay; S. Narayan Bodapati (American Society of Civil Engineers, 2001)
      A life-cycle cost model for noise barrier walls was developed based on survey data and field observations. The model includes all costs required to construct the noise barriers and uses service-life estimates based on field ...

    • Impact of Road Conditions on Elderly Drivers 

      Stewart Robertson; Lisa Aultman-Hall (American Society of Civil Engineers, 2001)
      This study examines the characteristics of crashes that involve elderly drivers (age 65 and older) in the state of Kentucky on different road surface conditions (dry, wet, or snowy/slushy); the study also compares the crash ...

    • Minimizing Distress on Flexible Pavements Using Variable Tire Pressure 

      Philip M. O. Owende; Anton M. Hartman; Shane M. Ward; Michael D. Gilchrist; Michael J. O'Mahony (American Society of Civil Engineers, 2001)
      The potential of variable tire pressure technology to minimize distress on flexible pavements with thin asphalt surfacing layers and peat soil subgrade was evaluated using in-situ stress-strain data. Pavement interfacial ...

    • Optimal Design of Pumping Mains 

      Prabhata K. Swamee (American Society of Civil Engineers, 2001)
      Pumping mains are pipelines in which the flow is maintained by pumping. The present design equations are based on the Hazen-Williams equation or the constant friction factor in the Darcy-Weisbach equation. Considering the ...

    • Statistical and Genetic Algorithms Classification of Highways 

      Pawan Lingras (American Society of Civil Engineers, 2001)
      This paper reports the results of experiments comparing a conventional statistical method and an evolutionary genetic algorithms approach for classifying highway sections that is based on temporal traffic patterns. Traffic ...