Now showing items 3401-3420 of 4147

    • Parametric Empirical Bayes Estimates of Truck Accident Rates 

      David A. Nembhard; Martin R. Young (American Society of Civil Engineers, 1995)
      The two common approaches to estimation of truck accident rates are an aggregate method, in which the data from all available road segments are pooled, and a segment-specific method, in which separate accident-rate estimates ...
    • Analysis of Travel Behavior Using Three-Parameter Data Loggers 

      Catherine L. Ross; Michael D. Meyer; Scott Barker; Yared Zemere (American Society of Civil Engineers, 1995)
      Data loggers were used in Atlanta to measure vehicle velocity, engine revolutions per minute, and manifold absolute pressure on 77 vehicles. The in-vehicle data loggers measured the characteristics of more than 4,600 trips ...
    • Multimedia Data Model for Video-Detection Research 

      Darcy Bullock; Suryanarayana Mantri (American Society of Civil Engineers, 1995)
      Traffic monitoring and detection systems are important for constructing closed-loop traffic-signal control, freeway-control, and congestion-management systems. Most detection and monitoring systems depend on inductive ...
    • Decision Support Rules for Profile Design at Intersections 

      Jim Lee; Kam K. Movassaghi; Amit Kumat (American Society of Civil Engineers, 1995)
      This research addresses the development of heuristic decision support rules to aid highway designers in designing intersection profiles that reduce the degree of roughness in the design. Six heuristic rules are developed ...
    • Determination of DDHV from Directional Traffic Flows 

      Satish C. Sharma; Yongqiang Wu; Samantha N. Rizak (American Society of Civil Engineers, 1995)
      The traditional two-way design-hour volume (DHV) is multiplied with directional split (D) to obtain the value of directional design-hour volume (DDHV) for multilane highways. A number of previous studies have revealed some ...
    • Classifying Highways: Hierarchical Grouping versus Kohonen Neural Networks 

      Pawan Lingras (American Society of Civil Engineers, 1995)
      Neural networks may be useful alternatives for statistical classification techniques when the available data is incomplete. This paper discusses the results obtained from a statistical technique called hierarchical grouping ...
    • Methodology for Evaluating ATIS Impacts on Air Quality 

      H. Al-Deek; R. Wayson; A. E. Radwan (American Society of Civil Engineers, 1995)
      This paper presents an analytical method for evaluating the impact of rerouting traffic guided with Advanced Traveler Information Systems (ATIS) on air quality. The method is applied to a simple road network composed of ...
    • Identifying Accident-Prone Locations Using Fuzzy Pattern Recognition 

      Tarek Sayed; Walid Abdelwahab; Frank Navin (American Society of Civil Engineers, 1995)
      This paper describes a method to identify accident-prone locations (APLs) based on an assessment of factors that contribute to accidents. Current methods to identify APLs make no distinction between accidents that result ...
    • Airport Choice in Multiple-Airport Regions 

      Robert Windle; Martin Dresner (American Society of Civil Engineers, 1995)
      A logistic model is constructed to predict airport choice in a multiple-airport region and estimated using passenger data from the Washington, D.C./Baltimore area. In agreement with previous work, it was found that airport ...
    • Investigation of Bonding between Asphalt Layers on Road Construction 

      Elmar K. Tschegg; Georg Kroyer; Dong-Ming Tan; Stefanie E. Stanzl-Tschegg; Johann Litzka (American Society of Civil Engineers, 1995)
      Bonding of asphalt layers on road construction is usually examined with the pull-off test, measuring the adhesive power. This value however, is not appropriate to characterize the fracture-mechanical behavior of layer ...
    • Model to Reduce Airline Schedule Disturbances 

      Dušan Teodorović; Goran Stojković (American Society of Civil Engineers, 1995)
      A wide variety of factors result in disturbances in carrying out planned airline schedules. Technical failures in the aircraft, meteorological conditions, crew delay, crews not showing up for flights, breakdowns in aircraft ...
    • Vehicle-Arrival Characteristics at Urban Uncontrolled Intersections 

      V. R. Rengaraju; V. Trinadha Rao (American Society of Civil Engineers, 1995)
      Vehicle-arrival characteristics are an important input for evaluating the performance measures at urban uncontrolled intersections. In the present study an attempt is made to identify suitable probability distribution ...
    • Development of No-Fines Concrete Pavement Applications 

      Nader Ghafoori; Shivaji Dutta (American Society of Civil Engineers, 1995)
      No-fines concrete is a type of concrete from which the fine aggregate is totally omitted and single-sized coarse aggregates are held together by a binder consisting of a paste of hydraulic cement and water. The earliest ...
    • Use of Nonlinear Subgrade Modulus in AASHTO Design Procedure 

      Matthew W. Witczak; Xicheng Qi; Muhammad W. Mirza (American Society of Civil Engineers, 1995)
      Resilient modulus (
    • Random Field Modeling of Railway Track Irregularities 

      R. N. Iyengar; O. R. Jaiswal (American Society of Civil Engineers, 1995)
      Track irregularity is considerably important in track-vehicle studies. Recorded data of these irregularities form a basis to develop track standards. This also helps specify track inputs to the vehicles. In this paper ...
    • Component Dowel-Bar Model for Load-Transfer Systems in PCC Pavements 

      Hua Guo; James A. Sherwood; Mark B. Snyder (American Society of Civil Engineers, 1995)
      A component dowel-bar model has been developed to simulate the doweled joint in portland-cement-concrete (PCC) pavements. The model consists of two bending beams of finite length, embedded in concrete, connected by a ...
    • Joint Width and Freeze/Thaw Effects on Joint Sealant Performance 

      I. L. Al-Qadi; S. A. Abo-Qudais (American Society of Civil Engineers, 1995)
      As part of ongoing research, a new testing method was developed to evaluate the effect of joint width and freezing and thawing on the performance of three types of commercially available one-component rigid pavement joint ...
    • Poisson Regression Models of Infrastructure Transition Probabilities 

      Samer Madanat; Wan Hashim Wan Ibrahim (American Society of Civil Engineers, 1995)
      Markovian transition probabilities have been used extensively in the field of infrastructure management, to provide forecasts of facility conditions. However, existing approaches used to estimate these transition probabilities ...
    • ERRATA 

      Unknown author (American Society of Civil Engineers, 1995)
    • Effects of Routine Maintenance on Flexible Pavement Condition 

      Edward Fekpe (American Society of Civil Engineers, 1995)