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    <title>Transport Research International Documentation (TRID)</title>
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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>
    <webMaster>tris-trb@nas.edu (Bill McLeod)</webMaster>
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      <title>Transport Research International Documentation (TRID)</title>
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      <link>https://trid.trb.org/</link>
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    <item>
      <title>DEVELOPMENT OF A MODEL TO ASSESS THE SAFETY IMPACTS OF IMPLEMENTING IVHS USER SERVICES</title>
      <link>https://trid.trb.org/View/412993</link>
      <description><![CDATA[This paper describes the design of a safety model that was developed to assess how the number and severity of accidents in a network are affected by the implementation of IVHS (Intelligent Vehicle-Highway Systems) user services. Facility type, geometric design, degree of congestion, number of stops and speed variability are factors that may affect safety. Implementation of some IVHS user services may impact the number and severity of accidents in a network by redistributing traffic to different facility types and/or to facilities with different levels of congestion. The model framework was developed to assess the congestion, emissions, fuel consumption and safety benefits of implementing IVHS user services. This paper focuses on the design of the safety model and not on evaluating the user services.]]></description>
      <pubDate>Thu, 17 Oct 2002 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/412993</guid>
    </item>
    <item>
      <title>INTEGRATED PLANNING/SIMULATION METHODOLOGY FOR ANALYSIS OF TRAFFIC MANAGEMENT SYSTEMS</title>
      <link>https://trid.trb.org/View/412950</link>
      <description><![CDATA[This paper describes the development of a prototype IVHS Benefits Assessment Model Framework to provide the analytical tools necessary to assess how the implementation of IVHS user services may impact congestion, fuel consumption, emissions, and safety. The framework approach is to integrate transportation demand modeling tools with simulation analysis tools and impact (emissions, fuel consumption, and safety) models to produce more accurate estimates of travel times and speeds, variables that may be impacted by IVHS, by introducing elements of dynamic assignment. The design of the model framework requires the development of automated linkages between the planning, simulation, and impact models. The model framework was developed specifically to assess the travel time, congestion, emissions, fuel consumption, and safety impacts of several traffic management IVHS user services, principally ATMS.]]></description>
      <pubDate>Fri, 05 Oct 2001 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/412950</guid>
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      <title>MOVING TOWARD DEPLOYMENT. PROCEEDINGS OF THE 1994 ANNUAL MEETING OF IVHS AMERICA</title>
      <link>https://trid.trb.org/View/638065</link>
      <description><![CDATA[This proceedings contains over 100 papers which were presented at the 4th Annual Meeting of IVHS America, Atlanta, Georgia, 1994.  All areas of IVHS are covered including traffic control systems, advanced traffic management systems, vehicle routing, automobile navigation, modeling data environments, artificial neural networks, drowsy driver detection, incident detection, risk management, traffic regulations, route guidance systems, mobile information systems and user needs and technologies.]]></description>
      <pubDate>Fri, 17 Nov 2000 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/638065</guid>
    </item>
    <item>
      <title>TRANSPORTATION MANAGEMENT CENTERS FOR IVHS - SURVEY OF EXISTING CAPABILITIES</title>
      <link>https://trid.trb.org/View/412695</link>
      <description><![CDATA[As new technologies are developed through research in Intelligent Vehicle-Highway Systems (IVHS), Transportation Management Centers (TMCs) will assume increasingly more importance as command and control centers for transportation operations. This paper includes an overview of TMC efforts on a national scale, and results of in-depth interviews with personnel at ten California TMCs and six major TMCs in North America. The interviews assessed: existing TMC functions, coordination among TMCs, coordination with other agencies, facilities, software and databases, and communication media. Three areas are highlighted: functional design, coordination among TMCs and with other agencies, and facilities available.]]></description>
      <pubDate>Thu, 15 Dec 1994 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/412695</guid>
    </item>
    <item>
      <title>ETTM TECHNOLOGY: CURRENT SUCCESS AND FUTURE POTENTIAL</title>
      <link>https://trid.trb.org/View/412696</link>
      <description><![CDATA[In the northeast, seven toll agencies in New York, New Jersey and Pennsylvania plan to have a common region-wide system in the near future. In New England, several toll authorities and other highway agencies are pursuing plans for compatible systems. In California, a state-wide standard is designed to coordinate ETTM systems by the California Department of Transportation, the Golden Gate Bridge, Highway and Transportation District, the new Transportation Corridor Agency toll projects, and private toll agencies being developed under AB680 legislation. The study briefly reviews recent progress relating to ETTM implementation worldwide and toll industry plans for the future.]]></description>
      <pubDate>Thu, 15 Dec 1994 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/412696</guid>
    </item>
    <item>
      <title>DESIGN OF AN INTEGRATED DATA COLLECTION PROGRAM TO SUPPORT MODELING OF USER RESPONSE TO ATIS SERVICES</title>
      <link>https://trid.trb.org/View/412697</link>
      <description><![CDATA[A critical issue in the design and evaluation of ATIS services is a clear understanding of user response to these potential services. Such an understanding is usually based on the development of models which capture user behavior. The authors present a comprehensive modeling framework of user response to ATIS. The framework focuses on ATIS access, usage, and response decisions made by travelers and considers levels of awareness of ATIS services and effects due to learning. Based on the modeling framework, data requirements for estimating component models are identified. A comprehensive review of related surveys, travel simulators, and field tests, and associated data collection efforts are presented. Data quality issues associated with each source are discussed and a data collection program is outlined.]]></description>
      <pubDate>Thu, 15 Dec 1994 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/412697</guid>
    </item>
    <item>
      <title>A NEURAL NETWORK BASED TRAFFIC DELAY PREDICTION MODEL FOR FREEWAY LANE CLOSURE</title>
      <link>https://trid.trb.org/View/412698</link>
      <description><![CDATA[This paper presents a prototype freeway lane closure delay estimation (FLCDE) model, which provides delay estimation to the motorists travelling miles upstream of a lane closure area. At this early juncture, they are given the opportunity to detour. The model employs simulation and artificial neural network techniques in estimating the near future traffic delay in a lane closure area on a real-time basis.]]></description>
      <pubDate>Thu, 15 Dec 1994 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/412698</guid>
    </item>
    <item>
      <title>RADICAL INNOVATION OR INCREMENTAL IMPROVEMENT? WHAT IS IVHS AND HOW SHOULD IT BE ORGANIZED?</title>
      <link>https://trid.trb.org/View/412699</link>
      <description><![CDATA[The premise of this paper is that the U.S. IVHS program began as a radical innovation program but its emphasis has since evolved toward an incremental innovation and diffusion program. The organization of the program, however, has remained more appropriate for a radical innovation program. The result is that the program organization is imperfectly matched to the goals of the program. This is most obvious in the limited participation by local operators and users.]]></description>
      <pubDate>Thu, 15 Dec 1994 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/412699</guid>
    </item>
    <item>
      <title>THE SUCCESSFUL DEPLOYMENT OF A MULTI-USER STANDARD COMMUNICATIONS PROTOCOL FOR LOCAL CONTROLLERS</title>
      <link>https://trid.trb.org/View/412700</link>
      <description><![CDATA[The use of NEMA and Model 170 local controller standards allows cities to install local controllers from one compliant vendor into cabinets from a second compliant vendor. This level of standardization simplifies maintenance and repair of field equipment. However, in cities with computer-supervised, area-wide signal control systems, the communications between the control center and the field is often accommodated with proprietary telemetry transceivers. Thus, desirable standardization and interchangeability is impaired by the need to use a specific external remote communication/interface unit (RCU) or a single brand of local controller with an integral serial port, modem and proprietary protocol. The logic, analysis and decisions that led to the formulation of an open, multi-user, multi-vendor communications protocol are presented in this paper.]]></description>
      <pubDate>Thu, 15 Dec 1994 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/412700</guid>
    </item>
    <item>
      <title>REAL-TIME FREEWAY RAMP CONTROL EMULATION SYSTEM</title>
      <link>https://trid.trb.org/View/412701</link>
      <description><![CDATA[This paper describes an innovative IVHS ATMS control emulation system designed to evaluate the real-time interactions of freeway system optimization and ramp control algorithms. This object-oriented, visualization system has implemented the TxDOT standard controller specifications through the "Visual Basic" and Microsoft Windows environment. The client/server design environments allow users to integrate various optimization modules through either stand-alone or networked microcomputer configurations. The system can monitor all the control interactions, collect traffic statistics, and provide real-time measures that allow users to visually examine system performance before field implementation.]]></description>
      <pubDate>Thu, 15 Dec 1994 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/412701</guid>
    </item>
    <item>
      <title>DEVELOPMENT AND FIELD IMPLEMENTATION OF OPEN ARCHITECTURE CONTROLLERS</title>
      <link>https://trid.trb.org/View/412702</link>
      <description><![CDATA[Many Intelligent Vehicle-Highway Syistems (IVHS) applications such as traffic management and control systems require more advanced field controllers than presently exist in the traffic controller industry. These advanced controllers are required because of new management and control techniques currently being developed in the IVHS industry. These new management and control techniques are increasing the requirements of field controllers for transportation applications. These requirements, in addition to the need to pursue an open solution which makes use of off-the-shelf scalable processors, have created the effort to develop the Open Architecture Controller (OAC). This paper presents the results of an evaluation of one of the first field OAC implementations. Various OAC hardware configuration alternatives are discussed in this paper, in particular the controller used in the Route 18 research project in New Jersey.]]></description>
      <pubDate>Thu, 15 Dec 1994 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/412702</guid>
    </item>
    <item>
      <title>CHART: CHESAPEAKE HIGHWAY ADVISORIES ROUTING TRAFFIC</title>
      <link>https://trid.trb.org/View/412703</link>
      <description><![CDATA[The Maryland State Highway Administration (SHA) is currently expanding its comprehensive statewide advanced traffic management system (ATMS), called the Chesapeake Highway Advisories Routing Traffic (CHART). In the current phase of the program's expansion, SHA is constructing a new complex to house the Statewide Operations Center (SOC). The SOC will be the "hub" center for the CHART system, operating seven days a week, 24 hours a day. The SOC will be supported during peak periods by "satellite" regional traffic operations centers (TOCs), which are already in operation. This hub and satellite architecture will provide statewide coverage through a systems approach which is very unique. CHART has been in operation as an incident management program since 1989.]]></description>
      <pubDate>Thu, 15 Dec 1994 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/412703</guid>
    </item>
    <item>
      <title>RAMP METERING: A SYSTEM CONCEPT DESIGN METHODOLOGY</title>
      <link>https://trid.trb.org/View/412683</link>
      <description><![CDATA[This paper describes a methodology to evaluate systemwide ramp metering implementation and provides guidelines for successful ramp metering application. Further, this paper describes a concept design for a systemwide metering application from definition of strategic objectives to tactical goals, to evaluation of key variables that impact ramp metering performance to assessment of costs and benefits associated with alternative ramp metering configuration.]]></description>
      <pubDate>Wed, 14 Dec 1994 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/412683</guid>
    </item>
    <item>
      <title>INTEGRATED REAL-TIME RAMP METERING CONTROL FOR NON-RECURRENT CONGESTION: MODELING AND STRATEGY DEVELOPMENT</title>
      <link>https://trid.trb.org/View/412684</link>
      <description><![CDATA[Over the past three decades, considerable ramp metering algorithms of both time-of-day and traffic-responsive types have been proposed and tested. The time-of-day algorithms determine the pre-timed metering rates based on regular demand and roadway traffic pattern, hence they are not effective in dealing with non-recurrent congestions. An appropriate trade-off must be made between the model complexity and the availability of solution algorithms. With this attempt, an integrated real-time ramp metering model for non-recurrent freeway congestion among link flows has been developed and tested in this study. The core concept of the proposed algorithm is to capture the dynamic traffic state evolution with a two-segment linear flow-density model. The entire algorithm has also been integrated with INTRAS, the most well-known freeway simulation model, for conducting simulation experiments.]]></description>
      <pubDate>Wed, 14 Dec 1994 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/412684</guid>
    </item>
    <item>
      <title>AN ADVANCED TRAFFIC MANAGEMENT SYSTEM FOR HAMPTON ROADS, VIRGINIA</title>
      <link>https://trid.trb.org/View/412685</link>
      <description><![CDATA[The I-64 Bus/HOV Reversible Roadway Traffic Management System is providing significant improvements to the transportation network of the Hampton Roads, Virginia area. As the ultimate traffic management system is installed and becomes operational, residents and tourists will be provided with real time traffic information on conditions throughout the region, and the system will facilitate the rapid detection and clearance of incidents.]]></description>
      <pubDate>Wed, 14 Dec 1994 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/412685</guid>
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