ITE JOURNAL / DECEMBER 2004 INTRODUCTION AND SCOPE OF PAPER Planning for freight transportation in urban areas is not performed as commonly or as thoroughly as planning for passenger transportation, despite the fact that one of the seven factors for metropolitan planning specified in the federal legislation (the Transportation Equity Act for the 21st Century) mentions freight. Most planners and...

A b s w 6 In USA, trailic simulation was originally developed to evaluate the traffic signal control system in the 1970s by the Federal Highway Administration (FHWA). This paper fin1 introduces the traflic signal control system software development process developed a t Traffic Research Laboratory, in which trailic simulation is integrated to develop, debug, test and evaluate traflic signal con...

Traffic accidents at intersections in urban area are the most common and take a majority of the accident toll. Analysing and generating counter measures has been the major task for traffic safety officials and engineers. Without knowing the safety implications of the counter measures, the task normally concentrates on tackling accidents reflected in historic accident data. As more demand for tr...

Improved understanding of scour and sedimentation processes near and at highway bridges is dependant on collecting reliable field data. Field data collection programs, however, have been hindered by inadequacies in instrumentation and measurement technologies. Through a coordinated program of research, the Federal Highway Administration (FHWA), State Highway Agencies (SHAs), National Cooperativ...

Canada’s climate is warming at a rate about double the global average, leading to potential negative impacts on public infrastructures such as jointed plain concrete pavement (JPCP). In light of this reality changing climate, work contained in paper aimed evaluating JPCP’s early-age behaviour response environmental conditions. HIPERPAV® software and associated models developed by U.S. Federal H...

Bu çalışmada, Amerikan Karayolları Müdürlüğü FHWA (Federal Highway Administration) tarafından geliştirilmiş bir yazılım olan DRIP (Drenage Requirement in Pavements) aracılığıyla, demir çelik endüstrisi atık malzemesi olarak ortaya çıkan cüruflarının hidrolik iletkenliğinin drenaj süresi ve karayolu temel tabakasının kalınlığı üzerindeki etkisi incelenmiştir. Analizlerde üçü elektrik ark fırını ...

T his research effort originated during the design of the Central Artery/Tunnel (CA/T) project in Boston. The Commonwealth of Massachusetts, in conjunction with the Federal Highway Administration (FHWA), is undertaking a $5 billion project to widen and depress the existing Central Artery (I-93) through downtown Boston and construct a third harbor tunnel (1-90) below Boston Harbor. During subseq...

Highway and roadside safety features are crash tested for compliance with certain safety criteria. US Federal Highway Administration (FHWA) uses a surrogate reusable test vehicle, Bogie, to conduct crash tests of roadside safety features. Bogie is intended to replace an impacting vehicle in order to reduce the cost of the test. Bogie can be configured with different crushable impact noses repre...

The Federal Highway Administration’s (FHWA) High-Fidelity Simulator, called HYSIM, was recently upgraded to better meet the needs of FHWA’s Human Centered Systems research program. The HYSIM is a fully interactive driving simulator used for human factors research in highway safety and highway operations. It provides a platform to study driver performance in a broad spectrum of driving situation...

Pavement Management Systems (PMS) provided the framework for the development of infrastructure management systems. Under the leadership of the Federal Highway Administration (FHWA), infrastructure management has further evolved into asset management, adding two new dimensions to the traditional approach: integration and business-like objectives. The paper makes the case that systematic asset ma...