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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>
    <docs>http://blogs.law.harvard.edu/tech/rss</docs>
    <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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      <title>Becoming a predict-and-prevent railway</title>
      <link>https://trid.trb.org/View/1481028</link>
      <description><![CDATA[UK infrastructure manager Network Rail (NR) is undergoing a transition to a predictive and preventive infrastructure maintenance strategy. Some of the challenges faced by NR, as well as the progress made so far, are charted in this article. The new condition-based approach promises to save time and reduce costs, yet the reality is often different, with data aggregation and collection not yet meeting standards required to satisfy safety regulations. NR is working to change this, and it is now able to remotely monitor the condition of more than 42,000 fixed assets. While there is still much work ahead for NR, the potential for opportunity is great if they can get it right.]]></description>
      <pubDate>Tue, 29 Aug 2017 10:07:40 GMT</pubDate>
      <guid>https://trid.trb.org/View/1481028</guid>
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      <title>Turning buzzwords into useable information</title>
      <link>https://trid.trb.org/View/1436882</link>
      <description><![CDATA[In order for railways to improve their competitive position, it is crucial utilize systems that are already in place which can cut operating costs, reduce the incidence of derailments, improve efficiency, and improve asset utilization. This article states the case for the wider application and integration of these systems which engage in remote monitoring and data harvesting.]]></description>
      <pubDate>Wed, 21 Dec 2016 11:29:39 GMT</pubDate>
      <guid>https://trid.trb.org/View/1436882</guid>
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    <item>
      <title>Proactive Management of Slope Hazards - Waioeka Gorge Pilot Study</title>
      <link>https://trid.trb.org/View/1406661</link>
      <description><![CDATA[Management of natural hazard risks, such as large landslides, has been a grey area for New Zealand's transport industry. The 2012 "Sandy Slip" event - SH2, Waioeka Gorge - was one such event. The resulting road closure spanned over 4 weeks, costing the New Zealand Transport Agency $8M (NZD). There was a failure to predict either the timing or scale of the slip. Hence the Waioeka Gorge Slope Hazard Pilot Study was commenced in 2012 to answer two questions: (1) Was Sandy Slip a one-off event? and (2) Explore the ability of remote monitoring systems to enable a more proactive risk management system dealing with large scale slip risks.]]></description>
      <pubDate>Fri, 20 May 2016 15:54:39 GMT</pubDate>
      <guid>https://trid.trb.org/View/1406661</guid>
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      <title>Application of Remote Real-Time Monitoring to Offshore Oil and Gas Operations</title>
      <link>https://trid.trb.org/View/1406439</link>
      <description><![CDATA[This report provides advice to the Bureau of Safety and Environmental Enforcement (BSEE) of the U.S. Department of the Interior on the use of remote real-time monitoring (RRTM) to improve the safety and reduce the environmental risks of offshore oil and gas operations. The report also evaluates the role that RRTM could play in condition-based maintenance (CBM), and how BSEE could leverage RRTM into its safety enforcement program.  The report makes recommendations to BSEE about how RRTM could be incorporated into BSEE's regulatory scheme. The recommendations also suggest that BSEE monitor the development of RRTM technologies in relation to risk-based goals governing offshore oil and gas processes.]]></description>
      <pubDate>Tue, 03 May 2016 10:35:34 GMT</pubDate>
      <guid>https://trid.trb.org/View/1406439</guid>
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    <item>
      <title>Monitoring Remote Intersections for Safety and Functionality</title>
      <link>https://trid.trb.org/View/1359716</link>
      <description><![CDATA[30-40% of signalized intersections in the US are located in remote or rural areas and are not connected to a central system, making it challenging to both service non-working signals and to monitor intersections for safety. This article details two options for monitoring signalized intersections in remote and rural areas: closed loop systems and cloud-based central monitoring and reporting systems.]]></description>
      <pubDate>Tue, 28 Jul 2015 15:51:50 GMT</pubDate>
      <guid>https://trid.trb.org/View/1359716</guid>
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    <item>
      <title>Detailed overview of selected RCM areas - RCM Toolkit</title>
      <link>https://trid.trb.org/View/1222981</link>
      <description><![CDATA[This report documents a toolkit and methodology for assessing the benefits and costs  of remote condition monitoring (RCM) systems to inform industry wide decisions. RCM captures and processes real-time asset condition information. The report presents a way to comprehensively evaluate the current industry approach and pinpoint opportunities and rationales relating to the further implementation of current and future systems. Guidance is provided for ways in which to approach qualitative assessment of the relative weaknesses and strengths of these systems, and the threats and opportunities associated with their implementation. The report also details the stages necessary to further implement the applicable technologies in the future and the procedure for quantitatively assessing the benefits and costs  connected to each stage.]]></description>
      <pubDate>Fri, 30 Nov 2012 08:56:09 GMT</pubDate>
      <guid>https://trid.trb.org/View/1222981</guid>
    </item>
    <item>
      <title>Remote condition monitoring proves its worth</title>
      <link>https://trid.trb.org/View/1140830</link>
      <description><![CDATA[Remote condition monitoring is a system that was developed to improve upon the traditional ways of improving point availability of railway assets. This article focuses on the case of Strukton Rail in the Netherlands and how they have used this system to get the most out of their maintenance. The hardware uses data logger software with on-board diagnosis units that can be connected via Ethernet. Train data is displayed on a website, which allows trains to be monitored from the depot. Railway condition monitoring systems such as these are only effective with the proper training and having it embedded into the organization.]]></description>
      <pubDate>Fri, 15 Jun 2012 16:04:54 GMT</pubDate>
      <guid>https://trid.trb.org/View/1140830</guid>
    </item>
    <item>
      <title>SmartPark Truck Parking Availability System: Video Technology Field Operational Test Results</title>
      <link>https://trid.trb.org/View/1102453</link>
      <description><![CDATA[This report presents the results of a field operational test (FOT) of an innovative system to monitor parking availability in a public truck parking area. The system used an off-the-shelf video-based traffic monitoring system. The self-contained monitoring equipment was solar-powered and used Ethernet radios to transmit vehicle entrance and exit events to an onsite, networked computer. Four Web cameras mounted on the service center building provided real-time views of the entire parking area to enable collection of ground truth data on facility occupancy. The FOT consisted of functional and performance tests. Initial tests found the vehicle detection accuracy met the desired 96 percent accuracy, but accuracy of vehicle length detection was below the required accuracy. Night detection was less accurate, primarily due to multiple detections of individual vehicles. Final tests occurred following improvements to the image processing software. The authors’ vehicle presence detector configuration and vehicle length detection algorithm was more accurate than the detector configuration that used the system’s capabilities alone. Hardware problems with the outbound camera and the less than required accuracy of the vehicle classification prevented evaluation of facility occupancy estimates. Because the video-based technology did not meet the performance requirement for vehicle classification accuracy, the FMCSA will be repeating the field operations test with another technology to be announced.]]></description>
      <pubDate>Wed, 18 May 2011 13:23:10 GMT</pubDate>
      <guid>https://trid.trb.org/View/1102453</guid>
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    <item>
      <title>Continuous Remote Monitoring of Structural Health for Life Extension of Uplift Bearing Assembly on Large Cantilever Truss Bridge</title>
      <link>https://trid.trb.org/View/1083507</link>
      <description><![CDATA[A situation on a large cantilever through-truss bridge, the John F. Kennedy Memorial Bridge, which carries I-65 over the Ohio River at Louisville, Kentucky, provides significant opportunities for applying innovative health monitoring techniques to transportation infrastructure. One of four anchor bolts restraining an uplift bearing at one end of the bridge fractured as a result of corrosion fatigue; the fracture led to concerns about the continuing safety and serviceability of the compromised bearing assembly. Short- and long-term instrument-based monitoring systems were deployed on the bearing assembly to (a) characterize the behavior of the damaged bearing and its intact counterparts, (b) quantify the load transfer due to the retrofit, and (c) monitor the performance of the retrofit continuously for the long term. The monitoring strategy has been successful on all counts; in particular, during Part 3 the system detected a significant shifting of loads that was later confirmed to correspond to fracture of a threaded rod that had been used to replace the failed anchor bolt; this result showed the utility of continuous remote monitoring in detecting failures between inspections. This paper describes the instrumentation plan and strategies for data acquisition, communication, and autonomous operation used on the bridge. The data and implications for management decisions are also discussed.]]></description>
      <pubDate>Mon, 06 Dec 2010 14:46:56 GMT</pubDate>
      <guid>https://trid.trb.org/View/1083507</guid>
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    <item>
      <title>Developed Wheel and Axle Assembly Monitoring System to Improve Passenger Train Safety</title>
      <link>https://trid.trb.org/View/918995</link>
      <description><![CDATA[To encourage the expansion of safe high-speed passenger rail service nationwide, the FRA sponsored the development and testing of two autonomous systems to monitor passenger trains to help ensure safety and ride quality. This monitoring is essential for high-speed trains where the consequences of derailment are potentially greater than for trains traveling at lower speeds. The first system is a rugged unit that can function reliably in extreme environments. This system was tested on a Talgo train with tilting technology traveling between Portland and Vancouver during the summer and fall of 1998. The unit was installed to monitor Talgo’s compliance with an FRA waiver allowing the train to travel through certain curves at speeds higher than those of a non-tilting train. The second system is a lighter less rugged system designed for passenger cars where the operating environment is typically less harsh than that of locomotives. The system was installed on Amtrak passenger cars traveling from Bakersfield to Sacramento California and from Washington, DC to New York City. This unit was designed to measure and monitor the vibration of wheel and axle assemblies using standard accelerometers. The measurements were then processed using a neural net computer that “learns” in a manner similar to a human. The data can be used to identify track and vehicle maintenance and repair needs and potentially unsafe conditions. The tests successfully demonstrated that the remote monitoring systems could provide a reliable means for detecting potentially unsafe track and vehicle conditions in near-real time. In addition it can be easily modified to meet various users’ monitoring requirements.]]></description>
      <pubDate>Thu, 17 Jun 2010 07:17:58 GMT</pubDate>
      <guid>https://trid.trb.org/View/918995</guid>
    </item>
    <item>
      <title>Emerging Technologies for Construction Delivery</title>
      <link>https://trid.trb.org/View/843815</link>
      <description><![CDATA[This synthesis presents information on the use of five emerging technologies for transportation construction projects:  global positioning systems for layout, machine guidance, and quantity tracking; handheld computers for construction records; automated temperature tracking for concrete maturity monitoring; four-dimensional computer-aided drafting modeling for constructability analysis and improved communications; and web-based video cameras for remote project monitoring.  The synthesis reports on the current state of each of the five technologies and their potential benefits for transportation agencies in the delivery of construction projects.  The following characteristics are provided for each of the technologies:  description, benefits, extent of use, barriers to use, instances of successful implementation and procedures, unresolved issues, and unintended consequences.  It also discusses the current level of use and documents lessons learned from agencies with experience in implementing the targeted technologies.  Other technologies discussed include virtual reality, building information models, and radio frequency identification.  The information will form a foundation from which state and provincial highway agencies can begin the process of performing benefit-cost analysis as a first step to adopting those technologies that seem the most promising.  A survey questionnaire was distributed to U.S. departments of transportation through a web-based survey application, and was also sent to select Canadian transportation agencies.  Responses were received from agencies across the North American continent.  In addition, a literature search was conducted of academic, governmental, industrial, and commercial resources to provide a solid theoretical and anecdotal basis for the review of each technology.]]></description>
      <pubDate>Thu, 10 Jan 2008 10:41:22 GMT</pubDate>
      <guid>https://trid.trb.org/View/843815</guid>
    </item>
    <item>
      <title>Field and Laboratory Studies on High-Mast Lighting Towers in Iowa</title>
      <link>https://trid.trb.org/View/835450</link>
      <description><![CDATA[Recent failures of high-mast lighting towers in several Midwestern states have raised questions as to the robustness and safety of the existing inventory of similar structures. Failure of these structures is very critical, as they are typically located adjacent to interstates or other high-speed highways. The potential exists for these fracture-critical structures to fall across multiple traffic lanes or adjacent property. Forensic studies on cracked poles in the state of Iowa and elsewhere have revealed fatigue to be the primary cause of the failures. Interestingly, there is little data on the actual response of these structures in terms of natural wind, longterm cyclic stresses, and general dynamic properties. Believed to be the first of its kind, the Iowa Department of Transportation has sponsored a comprehensive field testing and long-term remote monitoring program that has focused on two poles near Clear Lake, Iowa. The results of the field studies suggest that additional fatigue cracking can be expected at other poles in the future. In order to address this issue, retrofit strategies have been developed and are currently going through static and fatigue tests to establish the fatigue resistance and long-term viability of the design. The laboratory tests, which have just begun, have been augmented with detailed finite element analytical studies on the base plate connection. This paper will report on the initial results of the field studies and provide suggested strategies for retrofit, inspection, and maintenance of these fracture-critical structures.]]></description>
      <pubDate>Fri, 21 Sep 2007 13:54:15 GMT</pubDate>
      <guid>https://trid.trb.org/View/835450</guid>
    </item>
    <item>
      <title>Improving Asset Management: Remote Health Monitoring of the Hawk Falls Bridge</title>
      <link>https://trid.trb.org/View/804208</link>
      <description><![CDATA[In 2005, the Pennsylvania Turnpike Commission (PTC) agreed to implement a pilot remote health monitoring (RHM) system on the Hawk Falls Bridge in Beaver County, Pennsylvania.  This article describes the RHM system and explains how its data can be used in asset management applications.  The proposed system consisted of three fundamental components:  (1) permanent dual-channel strain sensors with memory capability to record both peak strain and active strain; (2) a secure, hard-wired installation and onsite data acquisition control box that records sensor data and then transmits it via wireless communication technology; and (3) a remote network operations center where data is received and stored and made available to PTC management through a password-protected Internet connection.  Coupling the RHM system data stream with a three-dimensional finite element model of the structure resulted in Pennsylvania's first "smart bridge."  Major benefits of the smart bridge system include assurance of reliable bridge performance, more predictable bridge response and better allocation of financial resources for maximum return on investment.]]></description>
      <pubDate>Fri, 30 Mar 2007 06:59:02 GMT</pubDate>
      <guid>https://trid.trb.org/View/804208</guid>
    </item>
    <item>
      <title>Selective Random Decrement Techniques for Bridge Monitoring Systems</title>
      <link>https://trid.trb.org/View/788537</link>
      <description><![CDATA[Reliable and early bridge-condition evaluation and detection of component failures are critical for bridge owners in the U.S. to ensure better utilization of available resources. Remote bridge monitoring systems (RBMS) have been perceived to assist periodic evaluation of structures to supplement bridge management systems with quantitative data, and for examining new design techniques. Many RBMS are based on measured bridge vibration, with a major issue in developing new RBMS being the lack of reliable methods to obtain modal parameters using traffic excitation. This paper addresses one such signal processing method and discusses results obtained using data measured from one of the RBMS installed in New York State bridges. Results indicate that is is necessary to find the natural modes, which are most insensitive to environmental parameter variations, for structural monitoring and the detection of damage.]]></description>
      <pubDate>Tue, 05 Sep 2006 07:48:27 GMT</pubDate>
      <guid>https://trid.trb.org/View/788537</guid>
    </item>
    <item>
      <title>Virtual Reality Damage Process Education System for Deteriorating Bridges</title>
      <link>https://trid.trb.org/View/783330</link>
      <description><![CDATA[Virtual Reality (VR)/Three-dimensional computer graphics (3-D CG) is a technology that creates a virtual three-dimensional space in a computer to visually reproduce the texture and movement of objects. Due to the significant improvement of the performance of computers and price reduction of software and various peripheral equipment in recent years, VR/3-D CG is rapidly becoming widespread and used for various purposes including scientific simulation and entertainment. It is also widely used in civil engineering for such purposes as aesthetic evaluation during planning and design phases, analytical simulations, and damage detection with real-time health monitoring. In this study, using above-mentioned great advantage of VR, a damage process education system as an “on the job training system” is developed for education of unskilled bridge maintenance engineers related to deteriorating bridges. The proposed system will greatly help not only easy-to-understand but also enlighten them on the importance of safety evaluation and management of existing bridges. The deterioration sequence and damage progress in the future are reproduced for some actual bridges in the system, then it is found that the proposed VR system helps efficiency bridge engineers related to bridge management understand easily what are the major processes in the deteriorating bridges in the future, how to improve their performance, and what kind of repair/strengthening works is most convenient for the deteriorating bridges. Bridge monitoring system via information technology is capable of providing more accurate knowledge of bridge performance characteristics than traditional strategies. This paper also describes an integrated Internet monitoring system that consists of a Stand-alone Monitoring System (SMS) and a Web-based Internet Monitoring System (IMS) for bridge maintenance. IMS, as a web-based system, is capable of addressing the remote monitoring by introducing measuring information derived from SMS into the system through Internet or Intranet connected by either PHS or LAN. Moreover, the key functions of IMS such as data management system, condition assessment and decision-making with the proposed system are also introduced in this paper.]]></description>
      <pubDate>Mon, 03 Jul 2006 07:08:48 GMT</pubDate>
      <guid>https://trid.trb.org/View/783330</guid>
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