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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>The shape of road markings for visibility computations</title>
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      <description><![CDATA[Road markings visibility is usually assessed by means of the visibility level (VL). Several models have been developed to calculate the visibility distance on the road (Detect/PCDetect, Carve/Tarvip, Cost 331 and CIE 73). These models all approximate the visibility of a marking by estimating the diameter of an 'equivalent' disc. In this process, speculative hypotheses are made to calculate this diameter, labelled the equivalent area hypothesis, the equivalent perimeter hypothesis or the equivalent width hypothesis. To compare these hypotheses, a psychophysical experiment was conducted with eight participants and 120 stimuli. It was found that the merit of each hypothesis changed with the diameter of the equivalent disc. Above 0·1°, all the hypotheses gave good results, but the equivalent area hypothesis was found to be the best. Below 0·1°, the equivalent width hypothesis was more accurate, but further investigations are still needed.]]></description>
      <pubDate>Tue, 21 Dec 2021 16:38:16 GMT</pubDate>
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      <title>Horizontal highway segmentation optimisation using genetic algorithms</title>
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      <pubDate>Thu, 25 Oct 2018 11:19:37 GMT</pubDate>
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      <title>Support vector machine model for prediction of accidents on non-urban sections of highways</title>
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      <title>Are deceleration numbers a suitable index for road safety?</title>
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      <title>Modelling of urban traffic noise using a systems approach</title>
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      <pubDate>Thu, 23 Aug 2018 11:45:14 GMT</pubDate>
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      <title>An ordered-probit analysis of enforcement of road speed limits</title>
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      <pubDate>Thu, 23 Aug 2018 11:45:12 GMT</pubDate>
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      <title>Exploring multi-stage driving behaviours prior to potential vehicle–pedestrian collisions</title>
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      <pubDate>Thu, 23 Aug 2018 11:45:10 GMT</pubDate>
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      <title>Mobility scooters in the UK: public perception of their role</title>
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      <pubDate>Thu, 23 Aug 2018 11:45:08 GMT</pubDate>
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      <title>Study of travel time variability using two-wheeler probe data: an Indian experience</title>
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      <pubDate>Thu, 23 Aug 2018 11:45:06 GMT</pubDate>
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      <title>Failure modes and mechanisms of pavements in saline foundations</title>
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      <pubDate>Tue, 26 Jun 2018 10:12:07 GMT</pubDate>
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      <title>Ride quality stability of jointed plain-concrete road pavements with short slabs</title>
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      <pubDate>Tue, 26 Jun 2018 10:12:05 GMT</pubDate>
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      <title>High-strength steel-fibre-reinforced concrete: potential use for ground slabs applications</title>
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      <pubDate>Tue, 26 Jun 2018 10:12:03 GMT</pubDate>
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      <title>Study of ravelling failure on dense graded asphalt pavement</title>
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      <pubDate>Tue, 26 Jun 2018 10:12:00 GMT</pubDate>
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      <title>Effects of pavement surface deformations on lane-changing behaviours</title>
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      <pubDate>Tue, 26 Jun 2018 10:11:58 GMT</pubDate>
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      <title>Investigation of damage and deterioration hazard in asphalt mixtures due to moisture</title>
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      <pubDate>Mon, 21 May 2018 10:12:41 GMT</pubDate>
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