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    <copyright>Copyright © 2026. National Academy of Sciences. All rights reserved.</copyright>
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    <managingEditor>tris-trb@nas.edu (Bill McLeod)</managingEditor>
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      <title>Feasibility Study for Development of Marine Exposure Test Site: Technical Report</title>
      <link>https://trid.trb.org/View/863670</link>
      <description><![CDATA[Durability is a serious issue for managers of the U.S. transportation infrastructure. Work remains to be done to improve the service life, life-cycle durability, and both direct and indirect life-cycle costs of reinforced concrete, steel, and other structural materials in all environments throughout the state of Texas. For this project, researchers performed a feasibility study for the development of a marine exposure test site on the Texas gulf coast. The goals of the site are to increase the service life, reduce the capital and maintenance costs, and improve the quality, performance, and safety of transportation infrastructure in Texas through real-exposure research, experimentation, and testing of construction materials and processes. A literature survey reviews economic studies of durability problems and associated costs, including the costs nationwide and in Texas of deterioration, degradation, and corrosion, and the tangible benefits of improved durability. The project researchers visited and evaluated existing exposure test sites in the U.S. to identify site requirements and the critical success factors for a Texas marine exposure test site. A quantitative cost-benefit analysis was performed considering costs and future benefits in the short-term and long-term. The results demonstrate that the development of a Texas marine test site would be economically feasible and cost-beneficial to Texas.]]></description>
      <pubDate>Tue, 08 Jul 2008 16:29:03 GMT</pubDate>
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      <title>MOISTURE CONTENT DETERMINATION OF UNBOUND AND SUBGRADE MATERIALS IN A PAVEMENT STRUCTURE</title>
      <link>https://trid.trb.org/View/469238</link>
      <description><![CDATA[This paper outlines a method recently developed and used to determine the moisture content in the unbound and subgrade materials of the pavement structure accurately.  This method is based on the application of the time-domain reflectometry (TDR) technique.  It has demonstrated to be a viable method for determining moisture content both in the laboratory and at the test site.  Its responses in uniformly and non-uniformly wet unbound and subgrade materials have been examined both theoretically and experimentally herein.  An extensive set of experiments were performed in a controlled laboratory test facility, which permitted the synthesis of steep moisture gradients and wetting fronts.  Measurements of moisture content were also taken from in-service test sites, with the aid of probes installed in-situ in the pavement layers.  Comparisons with conventional methods of determining moisture content were examined side-by-side and presented.  The moisture content measured using the TDR technique was found to be the same as the average moisture content, even in extremely non-uniform conditions.  In addition, the measurements obtained from this technique is also independent of temperature variations, thus eliminating the need for any temperature compensation. Application of this technique in long-term moisture condition monitoring of pavement structures is also discussed.]]></description>
      <pubDate>Thu, 27 Nov 1997 00:00:00 GMT</pubDate>
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      <title>OPEN ARCHITECTURE DEVELOPMENT FOR THE UK MOTORWAY TEST SITE</title>
      <link>https://trid.trb.org/View/574542</link>
      <description><![CDATA[The UK PROMOTE Association is working with the UK Departments of Transport and Trade and Industry to establish a motorway test site for the demonstration of applications involving two-way communications between roadside infrastructure and vehicles.  The communications will be achieved using microwave beacons operating at 5.8GHz.  This paper describes, in three main sections, the architecture designed to enable multiple information service providers to co-exist.  The roadside architecture is being developed to provide overall management of the strategic UK road network by collecting real-time information from the roadside, collating and processing it, and disseminating accurate and timely information to motorists through a number of diverse driver information services.  A beacon based communication medium has the flexibility to provide well targeted driver information in the short term and dynamic control in the longer term.  The communication system consists of a control center and a series of roadside beacons which can communicate with transceivers on-board equipped vehicles.  The on-board architecture continues the open systems approach by incorporating the flexibility to add new applications without having to change the existing architecture and component hardware.  This is achieved by using an information bus, a Universal Communications Supervisor and a Dialogue Manager.  A demonstration project, called Road Traffic Advisor (RTA) has been planned which, over three years, can develop the physical architecture and progressively demonstrate increasingly complex applications.  A wide range of applications can make use of the RTA architecture, both to provide information to individual drivers and to derive information which is of use to road operators.  This paper is one of four submitted on behalf of the (UK) Promote Association, which represents the UK motor industry and associated suppliers.]]></description>
      <pubDate>Tue, 16 Sep 1997 00:00:00 GMT</pubDate>
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      <title>PUBLIC/PRIVATE PARTNERSHIP IN PRACTICE - THE UK TELEMATICS DEMONSTRATION SITE</title>
      <link>https://trid.trb.org/View/574492</link>
      <description><![CDATA[The UK motor and electronics industry is working with the Highways Agency, Welsh Office and the Departments of Transport, and Trade and Industry, to establish a motorway test site for the demonstration of applications involving dedicated two-way communications between roadside infrastructure and vehicles. The project, called Road Traffic Advisor, is receiving funding from the Technology Foresight Challenge Fund which was set up by the UK Office of Science and Technology to encourage industry and science partners to work together to produce innovation.  This paper describes the partnerships which have been established to achieve the test site and associated demonstration.  The demonstration will involve experimental vehicles provided by Jaguar, Rover, and several research institutions as well as supporting infrastructure systems and hardware provided by government and industry.  Following the demonstration of UK based applications, it is expected that the test site will be used to establish harmonization with other European test sites.  Links with other Member States and with the European Commission are an important element of the overall partnership.  The paper is one of four submitted on behalf of the (UK) Promote Association, which represents the UK motor industry and associated suppliers.]]></description>
      <pubDate>Mon, 08 Sep 1997 00:00:00 GMT</pubDate>
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