Now showing items 3561-3580 of 4147

    • Structural Evaluation of Airfield Rigid Pavements Using Falling Weight Deflectometer 

      Boming Tang (American Society of Civil Engineers, 1993)
      In this paper, a comprehensive study of structural evaluation methods for jointed concrete airfield pavements is presented. A specially prepared concrete test pavement, consisting of six slabs with different size voids ...
    • Decision Analysis of Alternative Highway Alignments 

      Ram B. Kulkarni; Robert L. Burns; John Wright; Bryan Apper; Thomas O. Baily; Stephen T. Noack (American Society of Civil Engineers, 1993)
      The evaluation of alternative alignments for a proposed highway project in California required taking into account impacts on a variety of environmental and socioeconomic issues. Techniques of formal decision analysis were ...
    • Waste Products as Highway Materials in Flexible Pavement System 

      Seung W. Lee; K. L. Fishman (American Society of Civil Engineers, 1993)
      The purpose of this study is to investigate the use of industrial byproduct mixtures as construction materials. Fly ash, which is a by‐product of coal combustion, is mixed with fine‐grained material, a by‐product from an ...
    • Knowledge‐Based System for Flexible Pavement Structural Evaluation 

      Y. J. Chou (American Society of Civil Engineers, 1993)
      Pavement deflection data are often used to evaluate pavement's structural conditions nondestructively. Pavement layers are characterized by their elastic moduli estimated from surface deflections through backcalculations. ...
    • Analyses of Canadian Air Travel Demands 

      Bruce G. Hutchinson (American Society of Civil Engineers, 1993)
      The trends in Canadian domestic air‐travel demand during the past 20 years are described, and the annual changes in domestic air demand are shown to relate only very generally to the annual changes in economic activity. ...
    • Microcomputer Bridge Management System 

      Ronald W. Hudson; R. Frank Carmichael, III; Stuart W. Hudson; Manuel A. Diaz; Len O. Moser (American Society of Civil Engineers, 1993)
      The U.S. Department of Transportation and most of the state transportation agencies have identified a growing problem with deficient and obsolete bridges throughout the country. This paper summarizes the results of a study ...
    • Reliability‐Based Design of Intergreen Interval at Traffic Signals 

      Said M. Easa (American Society of Civil Engineers, 1993)
      The current method of computing the intergreen (yellow plus all‐red) interval at signalized intersections assumes that the component variables are deterministic. This paper presents a probabilistic method in which the ...
    • Characteristics of Hazardous‐Material Accidents in Pennsylvania 

      Antoine G. Hobeika; Sigon Kim; Raja Sethuraman (American Society of Civil Engineers, 1993)
      Pennsylvania has accounted for the highest number of hazardous material incidents in the United States between 1971 and 1983, with 90% of the incidents being highway related. The Pennsylvania Department of Transportation ...
    • Rating Countermeasures for Mitigation of Hazardous Materials Incidents 

      Eugene R. Russell, Sr. (American Society of Civil Engineers, 1993)
      Kansas State University (KSU) conducted a comprehensive study of the development of a set of prioritized, extreme‐risk scenarios; the development of a set of feasible, practical, and implementable protective systems, and ...
    • Hazmat Transport Risks: Societal and Individual Perspectives 

      F. F. Saccomanno; J. H. Shortreed (American Society of Civil Engineers, 1993)
      Risks associated with the transport of hazardous materials (hazmat) by truck and rail are viewed from two perspectives: society in general and the individual residing adjacent to the route. Societal and individual risks ...
    • Transportation Hazard Analysis in Integrated GIS Environment 

      Mark Lepofsky; Mark Abkowitz; Paul Cheng (American Society of Civil Engineers, 1993)
      With geographic information systems for transportation (GISTs) gaining wider acceptance by government agencies, attention is turning to the application of this information technology to sophisticated transportation management ...
    • Unified Design of Horizontal Circular Curves 

      Said M. Easa (American Society of Civil Engineers, 1993)
      A unified method for designing complex horizontal curves and all traditional categories of horizontal curves is presented. The unified method is applicable to complex curve geometry involving any number, combination, and ...
    • Effect of Vehicle Length on Passing Operations 

      Gordon A. Sparks; Russell D. Neudorf; John B. L. Robinson; Don Good (American Society of Civil Engineers, 1993)
      The maximum permitted length of trucks on Canadian roads has increased significantly over the past 20 years. This has led to concern regarding the interaction of trucks with other elements in the traffic stream. This paper ...
    • Field Evaluation of Preformed Membranes 

      Imad L. Al‐Qadi; Richard E. Weyers; Phillip D. Cady (American Society of Civil Engineers, 1993)
      Recently, the use of preformed membrane systems has increased as a corrosion preventive technique in reducing chloride intrusion into reinforced concrete bridge decks. However, there is no nondestructive method to evaluate ...
    • Bridge Size and Clearance Time of Single‐Point Urban Interchange 

      James A. Bonneson (American Society of Civil Engineers, 1993)
      The single‐point urban interchange (SPUI) is a relatively new type of diamond interchange. Its reported advantages are improved operational efficiency, improved safety, and reduced right‐of‐way requirements as compared to ...
    • Computer‐Assisted Routing of Dangerous Goods for Haute‐Normandie 

      Sylvain Lassarre; Kurt Fedra; Elisabeth Weigkricht (American Society of Civil Engineers, 1993)
      To assess the best routes for the transport of dangerous goods in an area of 600 km
    • Procedure for Developing Truck Accident and Release Rates for Hazmat Routing 

      Douglas W. Harwood; John G. Viner; Eugene R. Russell (American Society of Civil Engineers, 1993)
      To conduct risk assessments in routing studies for the highway transportation of hazardous materials (hazmat), estimates of accident and release rates are essential. Published literature underscores the importance of these ...
    • Infrastructure Management under Uncertainty: Latent Performance Approach 

      Moshe Ben‐Akiva; Frannie Humplick; Samer Madanat; Rohit Ramaswamy (American Society of Civil Engineers, 1993)
      This paper presents a new framework for the analysis of infrastructure performance and the planning of inspection, maintenance, and rehabilitation (M&R) activities. The main facets of this framework are: explicitly modeling ...
    • Design of a Submarine Oil Pipeline 

      Prabhata K. Swamee (American Society of Civil Engineers, 1993)
      Submarine oil pipelines carry hot crude oil obtained from offshore oil wells to an onshore location. As the flow proceeds, the crude oil progressively cools down, drastically changing its kinematic viscosity. This cooling ...
    • Proposed Model for Predicting Motorist Delays at Two‐Lane Highway Work Zones 

      Michael J. Cassidy; Lee D. Han (American Society of Civil Engineers, 1993)
      Maintenance activity on two‐lane highways often requires the closure of one travel lane. Vehicles in both directions of travel are served via the one remaining lane. Under such conditions, alternating right of way into the ...