Now showing items 1921-1940 of 2320

    • Automatic Road Detection in Grayscale Aerial Images 

      Katherine Treash; Kevin Amaratunga (American Society of Civil Engineers, 2000)
      Digital aerial photography provides a useful starting point for computerized map generation. Features of interest can be extracted using a variety of image-processing techniques, which analyze the image for characteristics ...
    • Comparison of Neural and Conventional Approaches to Mode Choice Analysis 

      Tarek Sayed; Abdolmehdi Razavi (American Society of Civil Engineers, 2000)
      This paper describes a new approach to behavioral mode choice modeling using neurofuzzy models. The new approach combines the learning ability of artificial neural networks and the transparent nature of fuzzy logic. The ...
    • IntelliGIS: Tool for Representing and Reasoning Spatial Knowledge 

      Xudong Jia (American Society of Civil Engineers, 2000)
      This paper presents a method for the representation and reasoning of spatial knowledge. Spatial knowledge is important to decision making in many transportation applications that involve human judgment and understanding ...
    • Augmented IFN Learning Model 

      Shih-Lin Hung; J. C. Jan (American Society of Civil Engineers, 2000)
      Solving engineering problems is a creative, experiential process. An experienced engineer generally solves a new problem by recalling and reusing some similar instances examined before. According to such a method, the ...
    • Finite State Verification of Intelligent Transportation Systems 

      John W. Baugh; GopalaKrishna Reddy Kakivaya (American Society of Civil Engineers, 2000)
      Intelligent transportation systems (ITS) represent a major initiative to improve roadway and travel conditions, not by building roads, but by drawing on new technologies in computing, sensing, and communications. However, ...
    • Novel Approach to Pavement Cracking Detection Based on Fuzzy Set Theory 

      H. D. Cheng; Jim-Rong Chen; Chris Glazier; Y. G. Hu (American Society of Civil Engineers, 1999)
      Conventional visual and manual pavement cracking analysis approaches are very costly, time-consuming, dangerous, labor-intensive, and subjective. They possess various drawbacks such as having a high degree of variability, ...
    • River Stage Forecasting in Bangladesh: Neural Network Approach 

      Shie-Yui Liong; Wee-Han Lim; Guna N. Paudyal (American Society of Civil Engineers, 2000)
      A relatively new approach, artificial neural network, was demonstrated in this study to be a highly suitable flow prediction tool yielding a very high degree of water-level prediction accuracy at Dhaka, Bangladesh, even ...
    • Impact of Multimedia-Based Instruction on Learning and Retention 

      Raja R. A. Issa; Robert F. Cox; Clifford F. Killingsworth (American Society of Civil Engineers, 1999)
      Studies measuring and evaluating the impact of the same multimedia-based education on learners in universities and high schools are a relatively new phenomenon. This study provides a summary of the results from research ...
    • Frameworks for Interaction Support in Distributed Learning Environments 

      Karim M. Hussein; Feniosky Peña-Mora (American Society of Civil Engineers, 1999)
      A framework for the development of distributed learning environments is presented. The necessary technological infrastructure and the appropriate methodology for interactive learning in a distributed environment are explored. ...
    • Genetic Programming-Based Approach for Structural Optimization 

      Chee Kiong Soh; Yaowen Yang (American Society of Civil Engineers, 2000)
      The main purpose of this paper is to introduce genetic programming into civil engineering problem solving. This paper describes a genetic programming-based approach for simultaneous sizing, geometry, and topology optimization ...
    • Information Technology Planning Framework for Large-Scale Projects 

      Feniosky Peña-Mora; Sanjeev Vadhavkar; Eric Perkins; Thomas Weber (American Society of Civil Engineers, 1999)
      New information technology developments continue to have a significant impact on large-scale architectural/engineering/construction (A/E/C) projects. However, the issue of whether A/E/C organizations are receiving adequate ...
    • EvoSite: Evolution-Based Model for Site Layout Planning 

      Tarek Hegazy; Emad Elbeltagi (American Society of Civil Engineers, 1999)
      Appropriate site layout of temporary facilities is crucial for enhancing the productivity and safety on construction sites. Site layout planning, however, is a complex problem, and researchers have attempted to solve it ...
    • Fuzzy Optimal Model for Resource-Constrained Construction Scheduling 

      Sou-Sen Leu; An-Ting Chen; Chung-Huei Yang (American Society of Civil Engineers, 1999)
      Activity duration is uncertain due to the variation in the outside environment, such as weather, site congestion, productivity level, etc. Furthermore, resources for construction activities are limited in the real construction ...
    • Benchmarking the World Wide Web in Student Collaboration 

      Paul S. Chinowsky (American Society of Civil Engineers, 1999)
      The introduction of new communication technologies such as the World Wide Web is creating unique opportunities for civil engineering educators to develop new classroom collaboration methods, where student teams can interact ...
    • Multicriteria DSS with Historical Database for Attenuator Selection 

      Lisa K. Spainhour; Primus V. Mtenga; John Sobanjo (American Society of Civil Engineers, 1999)
      A computerized information system has been developed for the management of field data on vehicle impacts with crash attenuators. The system has been developed for an intranet platform with a Java-based interface. A central ...
    • Evolution Program for Layout Geometry of Rectilinear Looped Networks 

      J. W. Davidson (American Society of Civil Engineers, 1999)
      This paper presents a new algorithm for the design of layout geometry of looped water distribution networks based on rectilinear grids. The algorithm is an evolution program based on genetic algorithms. It incorporates new ...
    • Developing Complex Integrated Computer Applications and Systems 

      Brian L. Smith; William T. Scherer (American Society of Civil Engineers, 1999)
      The challenge of integrating multiple computer applications and systems is common in civil engineering. For example, civil engineers are working to integrate geographic information systems, database management systems, and ...
    • Planning for Computer Integrated Construction 

      Youngsoo Jung; G. Edward Gibson (American Society of Civil Engineers, 1999)
      Computer integrated construction (CIC) has recently evolved to maximize the integrated utilization of information systems throughout the project's entire life cycle and across different business functions. CIC is a broad ...
    • A/E/C Teamwork: A Collaborative Design and Learning Space 

      Renate Fruchter (American Society of Civil Engineers, 1999)
      This paper describes an ongoing effort focused on combined research and curriculum development for multidisciplinary, geographically distributed architecture/engineering/construction (A/E/C) teamwork. It presents a model ...
    • Internal Structure Characterization of Asphalt Concrete Using Image Analysis 

      E. Masad; B. Muhunthan; N. Shashidhar; T. Harman (American Society of Civil Engineers, 1999)
      The performance of asphalt concrete (AC) mixtures is influenced by the arrangement of aggregates and their associated air voids. Parameters to measure aggregate orientation, aggregate gradation, and air void distribution ...