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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>State-of-the-Practice of a State Utilization of Traffic Simulation: Case Study of Florida, U.S.</title>
      <link>https://trid.trb.org/View/2381816</link>
      <description><![CDATA[Traffic simulation tools are widely used in analyzing and enhancing the forecasting, planning, design, operations, and management of transportation systems. Despite the increasing use of traffic simulation through the years, there are still many needs and issues facing transportation agencies and modelers in their use of traffic simulation. These needs and issues have not been sufficiently surveyed and summarized in the literature. The goal of this study is to identify the current applications, needs, and issues of traffic simulation modeling based on a survey of public and private agencies in Florida, U.S. The study conducted an online survey of traffic simulation modelers in Florida, followed by phone interviews with a subset of the respondents to the survey. The survey addressed the types of the utilized traffic analysis and simulation tools, utilized simulation guidance, utilized traffic data and performance measures, calibration processes and resources utilized by agencies, the current practice of future year demand forecasting, and perspective on the simulation of emerging technologies. The results from this study will help understand the present situation of applying traffic simulation and future needs to enhance simulation modeling capabilities and practices.]]></description>
      <pubDate>Tue, 28 May 2024 10:29:51 GMT</pubDate>
      <guid>https://trid.trb.org/View/2381816</guid>
    </item>
    <item>
      <title>Benefits of Adaptive Traffic Control Deployments - A Review of Evaluation Studies</title>
      <link>https://trid.trb.org/View/1743230</link>
      <description><![CDATA[Adaptive Traffic Control Systems (ATCSs), have been in use since the late ‘70s but have received significant attention in the US only during the last 10 years. Since 2008, the number of these systems has increased by more than 600%. The literature review clearly shows a shortage of comprehensive studies which would gather data from numerous field evaluations, categorize those evaluations based on a number of factors (i.e., criteria), summarize findings, and develop meaningful conclusions. This study develops a framework and a tool which enables comprehensive analysis of ATCSs deployed and evaluated in the US. Compared to some previous studies, where focus was on brief and general experiences with ATCSs, this study allows a detailed analysis of ATCS deployments and investigation of numerous criteria important for ATCS deployments and evaluation. Relevant data are collected through literature reviews and surveys of deploying agencies and used to populate a database of Assessment Tool for Adaptive Traffic Control ((AT)2C). The main purpose of the (AT)2C is to help practitioners and researchers to identify, compare, assess, and monitor statistics of relevant ATCS technologies, mainly from the perspective of their field benefits achieved in field. The last sections of the report give a sample of analyses that can be performed in this direction.]]></description>
      <pubDate>Wed, 07 Oct 2020 15:34:54 GMT</pubDate>
      <guid>https://trid.trb.org/View/1743230</guid>
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    <item>
      <title>Decision Support Systems for Road Traffic Management in Europe</title>
      <link>https://trid.trb.org/View/1266576</link>
      <description><![CDATA[Decision support systems (DSS) provide traffic managers in Traffic Control Centres with advice on certain decisions and operation tasks, thus enabling them to work more efficiently and improve safety and mobility. The paper provides an overview of the results of a European-wide survey conducted within the EasyWay project to compile current state of development and usage of decision support systems in European road traffic control centres. The paper concludes with overall analysis and recommendations on the types and priorities for traffic management decision support systems to be improved.]]></description>
      <pubDate>Thu, 21 Nov 2013 09:14:52 GMT</pubDate>
      <guid>https://trid.trb.org/View/1266576</guid>
    </item>
    <item>
      <title>A Report Card From Missourians - 2011</title>
      <link>https://trid.trb.org/View/1117524</link>
      <description><![CDATA[This survey populates data for seven customer satisfaction measures for the MoDOT Tracker; 4b, 4c, 5a, 12i, 13c, 16a and 17b. The survey also asks other evaluative and priority questions that measure the public’s support for various ways of raising and appropriating revenue for transportation. Using previous annual surveys as a baseline, the investigators collaborated with MoDOT to finalize the survey questions to be asked. A professional calling center was contracted to obtain a representative sample of each of the 10 MoDOT Districts, with a minimum of 350 respondents per District. Potential respondents were contacted through random digit dialing (RDD) from April 19th through May 2nd 17. A total of 3,524 interviews were completed for the study for a response rate of 43.2%.]]></description>
      <pubDate>Fri, 30 Sep 2011 07:41:14 GMT</pubDate>
      <guid>https://trid.trb.org/View/1117524</guid>
    </item>
    <item>
      <title>EVALUATION OF FREEWAY TRAFFIC MANAGEMENT SYSTEM (FTMS) IN KOREA</title>
      <link>https://trid.trb.org/View/574343</link>
      <description><![CDATA[In Korea, construction of the Freeway Traffic Management System (FTMS) was first initiated in 1992, and it has been in the process of operational testing since February 1995 on the 318 km sections of Kyoung-Bu and Chung-Bu express highways.  This study mainly focuses on the evaluation of system performance and effectiveness of FTMS; and then, based on these findings, the expansion possibility of FTMS in other sections of express highways will be scheduled for future study.  Several objectives were identified for the study.  These were: 1) Testing the various input sources and algorithms for FTMS.  The result of detector tests revealed that 500 meter intervals of loop and Autoscope outperformed among other types of detectors.  Incident detection, lane control, and ramp metering algorithms were also evaluated.  2) Quantifying the user acceptance of FTMS.  An on site survey was conducted for two days at several rest areas on express highways where FTMS is in operation.  The survey result revealed that 79% of highway users recognized the FTMS, 65% of the users agreed on the effectiveness of FTMS, 95% of the people were satisfied with the accuracy of VMS information, 68% of highway users needed alternative routing information, and 96% of the people were positive about the expansion of FTMS.]]></description>
      <pubDate>Fri, 15 Aug 1997 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/574343</guid>
    </item>
    <item>
      <title>GENERATING PARTIAL ORIGIN-DESTINATION TABLES FOR STREAMLINED APPLICATION OF CORRIDOR MODELS</title>
      <link>https://trid.trb.org/View/302134</link>
      <description><![CDATA[A method is described for generating origin-destination (OD) matrices for the subset of drivers who are likely to divert in response to any changes to the traffic network, such as ramp metering for freeways.  These ODs are generated automatically from responses to survey questionnaires handed out at strategic points in the network.  The responses are factored up to represent 100% of the observed flow on critical links.  The procedure also preloads onto the network any link volumes that are not represented by factored survey responses, and are presumably insensitive to any control schemes that might be considered.  Preloading of the less sensitive flows, rather than the existing procedure of creating and assigning pseudo-ODs, should reduce the work required of the analyst and lead to improved predictions of flows and queues.]]></description>
      <pubDate>Thu, 30 Nov 1989 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/302134</guid>
    </item>
    <item>
      <title>SUBSURFACE FRACTURE SURVEYS USING A BOREHOLE TELEVISION CAMERA AND ACOUSTIC TELEVIEWER</title>
      <link>https://trid.trb.org/View/282500</link>
      <description><![CDATA[Borehole television survey and acoustic televiewer logging provide rapid, cost-effective, and accurate methods of surveying fractures and their characteristics within boreholes varying in diameter from 7.6 to 15.3 cm.  In the television survey, a camera probe is used to inspect the borehole walls.  Measurements of location, orientation, infilling width, and aperture of fractures are made on the television screen and recorded on computer data record sheets.  All observations are recorded on video cassette tapes.  With the acoustic televiewer, oriented images of fractures in the borehole walls are recorded on a strip-chart log and also on video cassette tapes.  The images are displayed as if the walls were split vertically along magnetic north and spread out horizontally. Measurements of fracture characteristics are made on the strip-chart log, using a digitizing table and a microcomputer, and the data recorded on floppy diskettes. In both surveys, an inclined fracture is displayed as a sinusoidal curve, from which the apparent orientation of the fracture can be measured.  Once the borehole orientation is known, the true orientation of the fracture can be computed from its apparent orientation. Computer analysis of the fracture data, provides a rapid assessment of fracture occurrence, fracture aperture, and statistically significant concentrations of fracture orientations.]]></description>
      <pubDate>Thu, 30 Jun 1988 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/282500</guid>
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    <item>
      <title>PROCEEDINGS OF THE NATIONAL CONFERENCE ON DECENNIAL CENSUS DATA FOR TRANSPORTATION PLANNING - PART III DATA-USER EXPERIENCE WITH THE 1980 CENSUS--OPENING STATEMENT</title>
      <link>https://trid.trb.org/View/218116</link>
      <description><![CDATA[Papers presented at this session on the Data-User Experience with the 1980 Census describe in detail such uses, ranging from national, state, local, and interregional planning to service to local government on land use and employment estimates.  From a strictly transportation planning point of view, the transportation-oriented data have generally been used to develop a new data base for urbanized areas. Another important use has been in the application of existing models and in the development of new models, especially for mode-split analysis and shared-ride options. Data have been used for subarea planning, alternatives analysis, air-quality and energy studies, and land use forecasting.  The data have highlighted the unserved transit patron and provided information for Title VI transit reports.  Studies of hazardous waste transportation have been done for both night and day circumstances.]]></description>
      <pubDate>Sun, 31 Jan 1988 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/218116</guid>
    </item>
    <item>
      <title>SURVEY CONTROL FOR I-205 COLUMBIA RIVER BRIDGE</title>
      <link>https://trid.trb.org/View/173743</link>
      <description><![CDATA[The establishment of the principal control points required for the Columbia River Bridge construction using present day electronic distance measuring equipment is reviewed. Selection of the survey equipment was based on the distances at the bridge site to be measured and simplicity of operation. Familiarization and confidence were gained by traversing the river and verifying existing points set earlier by the location survey. The bridge site was studied and five locations were selected for permanent monuments.  Shelters for protection of the instrument were constructed, distances measured and angles turned. Closure was made and coordinates determined with the aid of a computer terminal and the Highway Division COGO program. To date the bridge piers and some of the superstructure have been successfully positioned with a minimum effort utilizing the five control points. The electronic distance measuring equipment and computer terminal have proven to be a time and labor saving combination for establishing survey control of this type. (ASCE)]]></description>
      <pubDate>Fri, 29 Jan 1982 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/173743</guid>
    </item>
    <item>
      <title>LAND SURVEYING RESEARCH: 1965-1975</title>
      <link>https://trid.trb.org/View/35152</link>
      <description><![CDATA[A review of land surveying research based on articles published during the period 1965-1975 is presented.  The areas covered include: (1) Land identification systems; (2) monumentation and legal aspects; (3) land surveying methods and survey control; (4) instrumentation; (5) education and professional registration; and (6) current and future research need.]]></description>
      <pubDate>Wed, 14 Jan 1976 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/35152</guid>
    </item>
    <item>
      <title>NEW ADJUSTMENT OF NORTH AMERICAN DATUM AND SURVEYOR</title>
      <link>https://trid.trb.org/View/35156</link>
      <description><![CDATA[A new adjustment of the horizontal geodetic control (triangulation) of the North American continent has began which will probably include Greenland, Canada, the United States, Mexico, and the Central American countries.  The impact of this effort on the surveying community is examined along with comments relating to the importance of tying to the national control network.  The potential of analytical photogrammetry is exploited for the purposes of relating local control to the national network.  Educators are requested to aid in the education of the surveying community in connection with the perils of inconsistent control.  The importance of a national cadastre is stressed.]]></description>
      <pubDate>Wed, 14 Jan 1976 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/35156</guid>
    </item>
    <item>
      <title>HANDBOOK OF APPLICATIONS OF STATISTICAL CONCEPTS TO THE HIGHWAY INDUSTRY. PART I-INITIAL COMPUTATIONS AND APPLICATIONS</title>
      <link>https://trid.trb.org/View/94866</link>
      <description><![CDATA[THIS IS PART I OF A THREE-PART HANDBOOK DEALING WITH PRACTICAL CONCEPTS IN THE FIELD OF STATISTICS AND WITH THEIR APPLICATIONS IN THE CONTROL OF MATERIALS AND PROCEDURES IN HIGHWAY CONSTRUCTION. THIS FIRST PART PRESENTS INTRODUCTORY EXPLANATIONS RELATING TO GENERAL PRINCIPLES OF STATISTICS THAT WILL BE USEFUL TO TECHNICIANS IN HIGHWAY ENGINEERING AND TO PRODUCERS OF MATERIALS. THE PRACTICAL APPLICATIONS OF THESE PRINCIPLES ARE SHOWN BY NUMERICAL EXAMPLES THAT ARE WORKED OUT FULLY. THE TERMS AND UNITS OF MEASUREMENTS ARE THOSE IN COMMON USE IN HIGHWAY WORK AND THE VALUES USED IN THE EXAMPLES ARE APPROXIMATELY THE SAME AS WOULD BE OBTAINED DURING CONSTRUCTION OPERATIONS. THE IMPORTANCE OF OBTAINING SAMPLES FOR TESTING BY THE USE OF CONTROL CHARTS IS ILLUSTRATED. /MR&D/]]></description>
      <pubDate>Sat, 20 Apr 1974 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/94866</guid>
    </item>
    <item>
      <title>HANDBOOK OF APPLICATIONS OF STATISTICAL CONCEPTS TO THE HIGHWAY INDUSTRY. PART II-ACCEPTANCE PLANS</title>
      <link>https://trid.trb.org/View/94867</link>
      <description><![CDATA[THIS IS PART II OF A THREE-PART HANDBOOK DEALING WITH PRACTICAL CONCEPTS IN THE FIELD OF STATISTICS AND WITH THEIR APPLICATIONS IN THE CONTROL OF MATERIALS AND PROCEDURES IN HIGHWAY CONSTRUCTION. THE MAIN PRUPOSE OF THIS PART IS TO POINT OUT AND ANALYZE THE RISK, OR EXPECTED LOSS, THAT MAY RESULT WHENEVER AN INSPECTOR OR ENGINEER MAKES A WRONG DECISION BY ACCEPTING OR REJECTING A LOT OF MATERIAL OR CONSTRUCTION. THE CONCEPTS AND PROCEDURES DESCRIBED IN PART I ARE APPLIED TO THE DESIGN OF STATISTICAL ACCEPTANCE PLANS AND SPECIFICATIONS. THE CONCEPT OF GOOD AND POOR LOTS CHARACTERIZED BY ASSIGNED AVERAGE VALUES IS INTRODUCED. IT IS SHOWN THAT THE AMOUNT OF RISK ASSOCIATED WITH THE ACCEPTANCE OR REJECTION OF A PARTICULAR LOT DEPENDS ON THE DIFFERENCE BETWEEN THESE AVERAGES, ON THE VARIABILITY OF THE MEASURED VALUES, AND ON THE NUMBER OF TESTS ON WHICH A DECISION IS BASED. THE DESIGN OF ACCEPTANCE PLANS AND SPECIFICATIONS, THE CONSTRUCTION OF ASSOCIATED OPERATING CHARACTERISTICS CURVES, AND METHODS OF APPLYING REDUCTIONS IN PRICE FOR MATERIALS OR CONSTRUCTION OF MARGINAL QUALITY, ARE ILLUSTRATED BY FULLY WORKED OUT EXAMPLES.]]></description>
      <pubDate>Sat, 20 Apr 1974 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/94867</guid>
    </item>
    <item>
      <title>LEGAL ASPECTS OF CONTROL SURVEYS</title>
      <link>https://trid.trb.org/View/93629</link>
      <description><![CDATA[CONTROL SURVEY DATA ARE INHERENTLY TENTATIVE VALUES WITH PROBABLE ERRORS DERIVED IN THE ADJUSTMENT OF REDUNDANT MEASUREMENTS RELATED TO A TENTATIVE GEODETIC DATUM. FEEDBACK IN THE GEODETIC ENGINEERING COMPLEX, TOGETHER WITH ACCUMULATING DATA FROM THIS AND RELATED PURE AND ENGINEERING SCIENCES, PERMITS MAKING RECURRENT READJUSTMENTS TO IMPROVE BOTH THE TENTATIVE GEODETIC DATUM AND THE FIT OF ALL ACCUMULATED AND NEAR-FUTURE MEASUREMENT RESULTS. THE NAS/NAE COMMITTEE ON A NEW WORLD GEODETIC DATUM FOUND IT TO BE TECHNICALLY AND ECONOMICALLY FEASIBLE, WITHIN THE NEXT DECADE, TO REDUCE PROBABLE ERRORS TO MINIMA OF 1:100000 FOR MODERATELY SHORT LINES AND 1:1000000 FOR LONG LINES. ACCURATE MEASUREMENTS OF VERY LONG ARCS, REPEATED AT INTERVALS APPROXIMATING A HALF CENTURY, TOGETHER WITH THE RESULTS OF SOME NEW VERY PRECISE PROCEDURES, INDICATE RELATIVE MOTIONS IN THE SAME SENSE AND WITH REASONABLY GOOD NUMERICAL AGREEMENT WITH GEOLOGIC-TIME ESTIMATES OF SEA FLOOR SPREADING, CONTINENTAL PLATE DRIFTS AND OTHER RELATED MOTIONS. CONTROL SURVEY DATA MUST NOW BE REGARDED AS SUBJECT TO RECURRENT ITERATIVE IMPROVEMENTS IN ACCURACY AND AS BEING SLIGHTLY VARIABLE IN REAL TIME. PRELIMINARY REFERENCE TO STATUTE AND CASE LAW INDICATES NEED FOR FURTHER SEARCH AND EXAMINATION OF THE LEGAL ASPECTS OF CONTROL SURVEYS AND THEIR RELATIONS TO GOVERNMENTAL AND PRIVATE BOUNDARIES, RIPARIAN RIGHTS, SURVEYING AND MAPPING IN GENERAL, ENVIRONMENTAL AND PLANNING CONTROLS, TERRESTRIAL, SEA, AIR AND SPACE NAVIGATION AND SAFETY, AND OTHER RELATED ACTIVITIES OF MAN. /AUTHOR/]]></description>
      <pubDate>Sun, 08 Aug 1971 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/93629</guid>
    </item>
    <item>
      <title>CONTROLLING ORTHOPHOTOGRPHY</title>
      <link>https://trid.trb.org/View/93615</link>
      <description><![CDATA[RECENT DEVELOPMENTS IN THE FIELD OF ORTHOPHOTOGRAPHY HAVE PLACED A NEW TOOL AT THE COMMAND OF THE MODERN CONTROL AND LAND SURVEYOR. THIS NEW TOOL OF ORTHOPHOTOGRAPHY WILL GIVE THE MAP PRODUCER CONSIDERABLY MORE LATITUDE IN MAP DESIGN THAN PREVIOUSLY POSSIBLE, AND WILL ALLOW HIM TO BETTER SERVE THE INTERESTS AND NEEDS OF THE MAP USER. AS WITH ANY NEW TOOL, NEW SKILLS ARE INVOLVED IN ITS USE AND SUCH IS THE CASE WITH ORTHOPHOTOGRAPHY. THE CONTROL OR LAND SURVEYOR HOPING TO UTILIZE OR PRODUCE ORTHOPHOTO MAPS BECOME AWARE OF THE PROBLEMS INVOLVED IN THIS PRODUCT SO THAT HE CAN AVOID THE PITFALLS AND GAIN ALL THE ADVANTAGES POSSIBLE WITH THIS NEW PROCESS. /AUTHOR/]]></description>
      <pubDate>Sun, 08 Aug 1971 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/93615</guid>
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