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

Now showing items 3741-3760 of 4147

    • Low‐Maintenance Rubber Crash Cushion 

      Dean L. Sicking; Paul N. Roschke; Hayes E. Ross, Jr. (American Society of Civil Engineers, 1990)
      The present research was aimed at development of a low‐maintenance crash cushion utilizing reusable rubber elements. Energy dissipation characteristics of full‐scale hollow circular rubber cylinders was investigated through ...

    • Automating Urban Freeways: Policy Research Agenda 

      Robert A. Johnston; Mark A. DeLuchi; Daniel Sperling; Paul P. Craig (American Society of Civil Engineers, 1990)
      Population growth, continuing suburbanization, and higher labor‐force‐participation rates, combined with a virtual halt in new freeway construction, have led to rapid increases in traffic congestion in the U.S. This ...

    • Arizona Freight Network Evaluation Using Decision Support System 

      M. Rahman; A. E. Radwan (American Society of Civil Engineers, 1990)
      Since highway freight transportation is recognized as an important part of the overall transportation scenario, planning initiatives are needed at the state level to ensure adequacy and efficient performance of its freight ...

    • Mathematical Model of Temperature Changes in Concrete Pavements 

      Dan F. Adkins; Gary P. Merkley (American Society of Civil Engineers, 1990)
      When concrete pavement is subjected to a change in temperature, some time must elapse before a condition of equilibrium is again reached. In the transient heating and cooling processes that take place in the interim, there ...

    • Discussion of “<i>Joint Shear Transfer Effects on Pavement Behavior</i>” by T. Krauthammer and K. L. Western (September, 1988, Vol. 114, No. 5) 

      Yu T. Chou (American Society of Civil Engineers, 1990)

    • Machine‐Vision System for Multispot Vehicle Detection 

      Panos G. Michalopoulos; Blake Wolf (American Society of Civil Engineers, 1990)
      New technology and equipment are constantly sought by traffic engineers for dealing with the problem of urban congestion. Among the most promising concepts available today is the use of video imaging for vehicle detection, ...

    • Automatic Pavement‐Distress‐Survey System 

      Toshihiko Fukuhara; Keiji Terada; Makoto Nagao; Atsushi Kasahara; Shigeki Ichihashi (American Society of Civil Engineers, 1990)
      An automatic pavement‐distress‐survey system that uses laser, video, and image processing techniques has recently been developed. This system consists of a survey vehicle and a data‐processing system. The survey vehicle ...

    • Closure to “<i>Optimization of Feeder Bus Routes and Bus‐Stop Spacing</i>” by Geok K. Kuah and Jossef Perl (May, 1988, Vol. 114, No. 3) 

      Geok K. Kuah; Jossef Perl (American Society of Civil Engineers, 1990)

    • Adaptation of Geographic Information Systems to Highway Management 

      Mark Abkowitz; Stephen Walsh; Edwin Hauser; Larry Minor (American Society of Civil Engineers, 1990)
      The advent of geographic information systems (GIS) has created a technology with considerable potential for achieving dramatic gains in efficiency and productivity for a multitude of traditional and innovative highway ...

    • Analysis of Pressure Distribution under Falling Weight Deflectometer Loading 

      Jacob Uzan; Robert L. Lytton (American Society of Civil Engineers, 1990)
      An analysis of the pressure distribution beneath the loading plate of a falling weight deflectometer is presented. The analysis is conducted in two stages: (1) Rigid plate deformation shapes without the rubber pad are ...

    • Digital Imaging Concepts and Applications in Pavement Management 

      Stephen G. Ritchie (American Society of Civil Engineers, 1990)
      The potential application of image‐processing methods to automate the manual data collection and visual rating of pavement surface conditions has not been widely recognized until relatively recently. A cost‐effective ...

    • Expert System for Compactor Selection 

      Ali Touran (American Society of Civil Engineers, 1990)
      This paper describes an expert system that helps the construction or highway engineer choose the most appropriate compactor under a set of job conditions. Selecting the suitable compactor is affected by numerous field ...

    • Feasibility of Robotic Cleaning of Undersides of Toronto's Subway Cars 

      W. Wiercienski; Alan R. Leek (American Society of Civil Engineers, 1990)
      The problems experienced with periodic and sometimes mandatory cleaning of the undersides of light‐rail commuter railcars are common to transit authorities throughout North America. The predominant causes for concern are ...

    • Automation and Robotics for Road Construction and Maintenance 

      Miroslaw Skibniewski; Chris Hendrickson (American Society of Civil Engineers, 1990)
      With rising road construction and maintenance costs and the lack of productivity improvement, automated road construction and maintenance equipment will provide an attractive alternative for the execution of routine work ...

    • Estimation of Driver Behavior Model Parameters 

      John C. Golias; George C. Kanellaidis (American Society of Civil Engineers, 1990)
      This paper develops methods for the analytical estimation of the critical gap and lag acceptance function parameters from existing major stream headway distribution and acceptance data. The analysis distinguishes between ...

    • Effects of 65‐MPH Speed Limit on Traffic Safety 

      Gang‐Len Chang; Jeffrey F. Paniati (American Society of Civil Engineers, 1990)
      In April 1987 the United States Congress passed the Surface Transportation and Uniform Relocation Assistance (STURA) Act that permitted the states to increase the speed limit on rural Interstate highways up to 65 mph. This ...

    • Costs to Small Agencies of Using Micros to Manage Traffic Records 

      Edward C. Sullivan (American Society of Civil Engineers, 1990)
      This paper discusses the costs and benefits of computerized traffic record systems and the actions required to implement them. While it emphasizes the problems and opportunities faced by small transportation and public ...

    • Seismic Damage to Pipeline: Case Study 

      Michael J. O'Rourke; Gustavo Ayala (American Society of Civil Engineers, 1990)
      A case study of damage to a welded steel pipeline in Mexico City, caused by the 1985 Michoacan earthquake, is presented. Seismic damage to pipelines in past earthquakes is briefly reviewed. The damage has typically been ...

    • Implementing Headway‐Based Reliability Control on Transit Routes 

      Mark D. Abkowitz; Mark Lepofsky (American Society of Civil Engineers, 1990)
      This paper presents the operational issues and results of implementing real‐time headway‐based reliability control along candidate bus routes operated by the Massachusetts Bay Transportation Authority in 1987. The procedure ...

    • Influence of Rehabilitation Decisions on Pavement‐Maintenance Planning 

      Tien F. Fwa; Kumares C. Sinha; John D. N. Riverson (American Society of Civil Engineers, 1990)
      There is a need to consider the influence of rehabilitation decisions in highway pavement‐maintenance planning and scheduling. Substantial cost savings can be achieved through effective work coordination and data‐base ...