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    <title>Transport Research International Documentation (TRID)</title>
    <link>https://trid.trb.org/</link>
    <atom:link href="https://trid.trb.org/Record/RSS?s=PHNlYXJjaD48cGFyYW1zPjxwYXJhbSBuYW1lPSJkYXRlaW4iIHZhbHVlPSJhbGwiIC8+PHBhcmFtIG5hbWU9InN1YmplY3Rsb2dpYyIgdmFsdWU9Im9yIiAvPjxwYXJhbSBuYW1lPSJ0ZXJtc2xvZ2ljIiB2YWx1ZT0ib3IiIC8+PHBhcmFtIG5hbWU9ImxvY2F0aW9uIiB2YWx1ZT0iMCIgLz48L3BhcmFtcz48ZmlsdGVycz48ZmlsdGVyIGZpZWxkPSJpbmRleHRlcm1zIiB2YWx1ZT0iJnF1b3Q7SW5zdHJ1bWVudHMgZm9yIG1lYXN1cmluZyB0aW1lJnF1b3Q7IiBvcmlnaW5hbF92YWx1ZT0iJnF1b3Q7SW5zdHJ1bWVudHMgZm9yIG1lYXN1cmluZyB0aW1lJnF1b3Q7IiAvPjwvZmlsdGVycz48cmFuZ2VzIC8+PHNvcnRzPjxzb3J0IGZpZWxkPSJwdWJsaXNoZWQiIG9yZGVyPSJkZXNjIiAvPjwvc29ydHM+PHBlcnNpc3RzPjxwZXJzaXN0IG5hbWU9InJhbmdldHlwZSIgdmFsdWU9InB1Ymxpc2hlZGRhdGUiIC8+PC9wZXJzaXN0cz48L3NlYXJjaD4=" rel="self" type="application/rss+xml" />
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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>
      <url>https://trid.trb.org/Images/PageHeader-wTitle.jpg</url>
      <link>https://trid.trb.org/</link>
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    <item>
      <title>Reducing the Time Loss Bias: Two Ways to Improved Driving Safety and Energy Efficiency</title>
      <link>https://trid.trb.org/View/1632723</link>
      <description><![CDATA[The time loss bias describes the systematic overestimation of time lost when decelerating from a relatively high speed. In the present study, the authors investigated the debiasing effect of two educational interventions, the Paceometer (Peer and Gamliel, 2013) and a newly designed Pop-up assistant, in a video-based controlled-access highway driving scenario. The Paceometer provides participants with pace information (min/km) added to the common speedometer. The Pop-up assistant informs about the time lost when decreasing speed according to a specific situation. A mixed-design ANOVA confirmed the improvement of time loss estimations for both debiasing tools and the superiority of the Pop-up assistant, which produced temporal spillover effects. The authors discuss potential explanations in terms of simplifying information and anchoring and the potential benefits of both tools to reduce risky driving, fuel costs and range restrictions of electric vehicles.]]></description>
      <pubDate>Wed, 17 Jul 2019 11:36:21 GMT</pubDate>
      <guid>https://trid.trb.org/View/1632723</guid>
    </item>
    <item>
      <title>SPOT SPEED SURVEY DEVICES</title>
      <link>https://trid.trb.org/View/120667</link>
      <description><![CDATA[DEVICES AVAILABLE FOR SPOT SPEED DETECTION ARE DESCRIBED. THE PRINCIPLES OF OPERATION, OPERATING FEATURES, AND ADVANTAGES AND LIMITATIONS ARE INDICATED FOR EACH DEVICE. THE SENSING DEVICES ARE DISCUSSED IN ACCORDANCE WITH THE PRINCIPLE OF OPERATION: (1) ELECTRIC CONTACT, (2) PHOTOGRAPHIC, (3) PNEUMATIC ROAD TUBE, (4) RADAR, AND (5) ULTRASONIC. THERE ARE TWO BASIC METHODS EMPLOYED FOR MEASURING SPEED EXTERNALLY. ONE INVOLVES MEASUREMENT OF TIME AND DISTANCE, THE OTHER TAKES ADVANTAGE OF THE DOPPLER PRINCIPLE. DEVICES USING THE FIRST METHOD MAY BE STARTED AND STOPPED BY SENSING DEVICES OF THE ROAD TUBE AND ELECTRIC CONTACT TYPE. THE DOPPLER TYPE METERS ARE RADAR AND ULTRASONIC. MEASURING AND/OR INTERPRETIVE DEVICES ARE DISCUSSED UNDER THEIR PRINCIPLE OF OPERATION: (1) CONDENSER, (2) ELECTRONIC DECADE, (3) MECHANICAL STEPPING SWITCH, (4) OPTICAL, AND (5) TIMED WITH A WATCH. A VARIETY OF DISPLAY OR RECORDING DEVICES ARE ALSO AVAILABLE. THESE VARY FROM A SIMPLE DIRECT READING DIAL TO A MECHANICALLY DRIVEN TAPE WHERE ACTUATED PENS MAKE A PERMANENT RECORD OF SPEED. A LIST OF MANUFACTURERS IS APPENDED INDICATING WHERE THE DEVICES OR COMPONENTS MAY BE PURCHASED IN THE FOLLOWING CATEGORIES: (1) SENSING DEVICES, (2) MEASURING DEVICES, AND (3) RECORDING DEVICES.]]></description>
      <pubDate>Sun, 15 Aug 2004 02:36:20 GMT</pubDate>
      <guid>https://trid.trb.org/View/120667</guid>
    </item>
    <item>
      <title>A PRACTICAL METHOD FOR IMPROVING THE ACCURACY OF VEHICULAR SPEED DISTRIBUTION MEASUREMENTS</title>
      <link>https://trid.trb.org/View/120637</link>
      <description><![CDATA[A FORMULA CONNECTING THE SPEED DISTRIBUTION MEASURED IN TIME WITH THE SPEED MEASURED IN SPACE IS DERIVED AND APPLIED TO THE CASES OF PEARSON TYPE III DISTRIBUTIONS, AND LOGNORMAL DISTRIBUTIONS. IN THE FIRST CASE, CONVERSION TABLES FROM TIME TO SPACE MEASUREMENTS ARE PROVIDED BOTH FOR THE MEAN AND VARIANCE AND FOR THE PERCENTAGE OF CARS GOING MORE SLOWLY THAN SOME FIXED SPEED. /AUTHOR/]]></description>
      <pubDate>Sun, 15 Aug 2004 02:36:13 GMT</pubDate>
      <guid>https://trid.trb.org/View/120637</guid>
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    <item>
      <title>EFFECT OF TIME AND SPACE UNCERTAINTY ON A VIGILANCE TASK</title>
      <link>https://trid.trb.org/View/635996</link>
      <description><![CDATA[Two groups, each of 12 students were instructed to detect increments in light level from displays of one or five lights. Signals appeared in regular and in irregular intervals. The display was flashed on simultaneously for 0.8 seconds every 3.2 seconds. Signal detection was superior with a display of one light then with a display of five lights. For two extreme response criteria, there was a decrement of false alarms and an increment of beta during a run. These changes were not dependent upon time and spatial uncertainty. No difference was found between central and peripheral light positions. Correlation of measures was also examined.]]></description>
      <pubDate>Fri, 18 Sep 1998 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/635996</guid>
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    <item>
      <title>IMPLEMENTATION OF A STANDARD FORMAT FOR GPS COMMON VIEW DATA</title>
      <link>https://trid.trb.org/View/465923</link>
      <description><![CDATA[A new format for standardizing common view time transfer data, recommended by the Consultative Committee for the Definition of the Second, is being implemented in receivers commonly used for contributing data for the generation of International Atomic Time.  The paper discusses three aspects of this new format that potentially improve GPS common view time transfer: 1) the standard specifies the method for treating short term data, 2) it presents data in consistent formats including needed terms not previously available, and 3) the standard includes a header of parameters important for the GPS common view process.]]></description>
      <pubDate>Fri, 26 Dec 1997 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/465923</guid>
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    <item>
      <title>ACTIVITY, TRAVEL, AND THE ALLOCATION OF TIME</title>
      <link>https://trid.trb.org/View/451513</link>
      <description><![CDATA[This paper analyzes 1968 and 1987-88 metropolitan Washington, DC, household travel surveys to understand the daily allocation of time among different activities of individuals classified by work status and gender.  An increase in overall time spent at work per person is the result of the increase in female labor force participation rates.  Less time is spent at home due to the increase in work trips and the simultaneous increase in non-work trips.  Money has become a substitute for time spent at home, as seen in the number of household services purchased outside the home.  The group of individuals who work at home is analyzed separately to obtain an understanding of this growing segment.]]></description>
      <pubDate>Tue, 24 Oct 1995 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/451513</guid>
    </item>
    <item>
      <title>SWELL VERSUS SATURATION FOR COMPACTED CLAY. DISCUSSION AND CLOSURE</title>
      <link>https://trid.trb.org/View/408873</link>
      <description><![CDATA[A discussion of a technical note with the aforementioned title by Robert W. Day, published in this journal (Volume 118, Number 8, August 1992), is presented.  The discussion focuses on swell characteristics of compacted clay and methods of plotting data. Phatak and Kanitkar state that plotting percent swell versus time data on a log-log basis is a better way of identifying the end of the primary swell than in a semilogarithmic manner as performed by the author.  Discussion is followed by closure from the author.]]></description>
      <pubDate>Tue, 02 Aug 1994 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/408873</guid>
    </item>
    <item>
      <title>CORROSION OF METALS IN TROPICAL ENVIRONMENTS, PART 6 - GALVANIC COUPLES</title>
      <link>https://trid.trb.org/View/108157</link>
      <description><![CDATA[PREVIOUS PAPERS HAVE PRESENTED DATA FOR A NUMBER OF UNALLOYED METALS, STRUCTURAL STEELS, WROUGHT IRON AND STAINLESS STEELS. AS IN EARLIER REPORTS, THE DATA PRESENTED HERE ARE BASED ON THE RESULTS FROM EIGHT YEARS' EXPOSURE, DURING WHICH MEASUREMENTS WERE MADE AT THE END OF ONE, TWO, FOUR, AND EIGHT YEARS, RESPECTIVELY. /AUTHOR/]]></description>
      <pubDate>Fri, 13 May 1994 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/108157</guid>
    </item>
    <item>
      <title>RESISTANCE OF ALUMINUM-BASE ALLOYS TO 20-YEAR ATMOSPHERIC EXPOSURE</title>
      <link>https://trid.trb.org/View/106712</link>
      <description><![CDATA[THE PERTINENT DATA OBTAINED ON WROUGHT ALUMINUM-BASE ALLOYS AFTER ATMOSPHERIC WEATHERING EXPOSURE PERIODS OF 1, 3, 6, 10 AND 20 YEARS HAVE BEEN TABULATED AND ALSO ARRANGED GRAPHICALLY TO ILLUSTRATE CHARACTERISTICS OF SPECIFIC INTEREST, SUCH AS (1) EFFECT OF NATURAL AGING ON THE TENSILE STRENGTH OF SPECIMENS STORED INDOORS FOR 20 YEARS, (2) RATING OF THE CORROSIVITY OF THE SEVEN ATMOSPHERIC CONDITIONS EMPLOYED, AND (3) THE RATE OF WEATHERING OF THE FIVE ALUMINUM ALLOYS. THESE IMPORTANT DATA HAVE BEEN FURTHER ENHANCED BY CORRELATING THEM WITH EQUALLY LONG-TIME DATA OBTAINED BY THE ALUMINUM RESEARCH LABORATORIES ON SIMILAR ALLOYS IN OTHER ATMOSPHERIC ENVIRONMENTS, AND ON NEWER ALUMINUM ALLOYS WHICH NOW COMPLEMENT OR SUPERSEDE THE ALLOYS WHICH HAD BEEN IN THE ASTM INVESTIGATION. /AUTHOR/]]></description>
      <pubDate>Fri, 13 May 1994 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/106712</guid>
    </item>
    <item>
      <title>THE REAL TIME ESTIMATION OF ORIGIN-DESTINATION FLOWS IN THE PRESENCE OF PLATOON DISPERSION</title>
      <link>https://trid.trb.org/View/359406</link>
      <description><![CDATA[A number of procedures for the estimation in real time of origin-destination flows in junctions or small networks are reviewed. These are based on the assumption that the time taken by vehicles to traverse the junction or network is either small in relation to the chosen time interval or equal to some fixed number of time intervals. In reality, there will be a distribution of travel times that may span a number of time intervals. This paper proposes two ways to allow for this in the estimation of origin-destination flows. The first, appropriate if travel times are approximately geometrically distributed, makes use of the recurrence model of platoon dispersion. The second makes no assumption about the form of the distribution of travel times, but in general requires the estimation of substantially more parameters. Simulation results for data containing geometrically distributed travel times suggests that fitting the correctly specified model produces better estimates of the turning proportions than does the conventional approach where travel times are restricted to a fixed number of time intervals.]]></description>
      <pubDate>Wed, 30 Sep 1992 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/359406</guid>
    </item>
    <item>
      <title>NIST TIME AND FREQUENCY SERVICES</title>
      <link>https://trid.trb.org/View/342237</link>
      <description><![CDATA[No abstract provided.]]></description>
      <pubDate>Sat, 29 Feb 1992 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/342237</guid>
    </item>
    <item>
      <title>THE CONTROL OF MOTORWAY RELIABILITY</title>
      <link>https://trid.trb.org/View/364164</link>
      <description><![CDATA[This paper presents an analysis of the instability phenomenon on motorways, with the aim of arriving at the definition of a control strategy suitable for keeping the flow stable. By using some results of the motorway reliability theory, a relationship between reliability and some flow characteristics is obtained, which shows the existence of a reliability threshold critical for flow stability. A method is presented, based on the analysis in real time of these processes, by which it is possible to detect the approach of instability before its effects become manifest, and to single out the proper control strategy in different situations.]]></description>
      <pubDate>Fri, 31 Jan 1992 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/364164</guid>
    </item>
    <item>
      <title>IMPROVEMENT OF THE FIRST AID TO VICTIMS OF TRAFFIC ACCIDENTS</title>
      <link>https://trid.trb.org/View/356778</link>
      <description><![CDATA[Since the beginning of the 1980s people providing assistance to traffic accident victims (traumatologists as well as ambulance personnel) have declared that the assistance can be much improved on the basis of existing knowledge. Improvements are thought to be possible in every phase of the treatment.  While in every phase of the treatment errors are made, valuable time is lost and/or necessary treatments are not done at all.  Consequences of these shortcomings are: a number of avoidable fatalities (on the basis of an evaluation study estimated on some hundred cases per year), and a number of avoidable invalidity/loss of function (the number is as yet not known).  The report is based on a collection of incidents which have occurred in any phase of the assistance to victims of accidents and published in Dutch papers.]]></description>
      <pubDate>Mon, 30 Sep 1991 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/356778</guid>
    </item>
    <item>
      <title>THE CAPACITATED TRAVELING SALESMEN LOCATION PROBLEM</title>
      <link>https://trid.trb.org/View/353926</link>
      <description><![CDATA[The capacitated traveling salesmen location problem is the problem of locating one service station with servers, each having a limited capacity, q. The service units must visit each day all the calls that are registered in a service list. Each call is generated with a given probability and the service list contains at most n calls. In the paper the author presents an O (n to the 3rd power) time heuristic for the problem on networks. This heuristic finds a solution whose relative worst-case error equals 3/2 - 3/(2q). The report also shows how one can use this heuristic to solve the problem on the plane with rectilinear or Euclidean distances with the same worst-case error. In the latter case the heuristic is proved to be asymptotically optimal.]]></description>
      <pubDate>Tue, 30 Apr 1991 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/353926</guid>
    </item>
    <item>
      <title>NOTTINGHAM ZONES AND COLLAR STUDY, RESULTS OF THE 'AFTER' SURVEYS</title>
      <link>https://trid.trb.org/View/77720</link>
      <description><![CDATA[The Nottingham 'Zones and Collar' experiment in the western sector of the city was implemented in August 1975. The principal aim of the experiment was to make bus travel in the morning peak period more attractive by re-locating traffic queues at points where buses could be given priority. At the same time it was intended to limit the flow of traffic on the approaches to the city center to August 1973 levels. Away from the selected delay points, the reduction in traffic would allow the remaining vehicles, including buses and commercial vehicles to flow freely. A 'before' study was made in April/May 1975 and a report on the results has been published. The present report gives results of the 'after' study made in April/May 1976 by TRRL, Nottinghamshire County Council and the Traffic Advisory Unit, now of the Department of Transport. These include surveys of bus and car journey times, traffic flows, infringements of the newly introduced traffic regulations and the use of the newly introduced traffic regulations and the use of the special 'park and ride' sites. To complement these a roadside interview survey was held and also a household interview survey to determine changes in the travel habits of individuals. (Copyright (c) Crown Copyright 1978.)]]></description>
      <pubDate>Tue, 29 Dec 1981 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/77720</guid>
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