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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>Clean, Green and Smart Corridor Development: MCOM Advance Adoption of Alternative Fuel Commercial Vehicles</title>
      <link>https://rip.trb.org/View/1440843</link>
      <description><![CDATA[When compared to passenger vehicles, trucks and other commercial vehicles have disproportionately higher emissions and impacts.  One strategy to reduce emissions from commercial vehicle sources is to transition away from fossil-based diesel by increasing the adoption of alternative fuel vehicles.  This project examines and inventories the existing alternate fuel infrastructure along the I-5 Corridor, identifies the gaps in that infrastructure, and looks for ways to establish additional alternative fueling locations.  In addition, the project will study the potential for integrating alternative fuel attributes to the mix of timely and accurate truck traveler information in order to accelerate the adoption of alternative fuels as well as support vehicle operators make travel choices that are better for them and the environment.     Reducing hazardous emissions to improve air quality and lessen the impacts to human health have been a high priority for the Department and the State for Decades.  More recently there have been significant efforts to reduce greenhouse gas emissions in the hopes of slowing the effects that will be brought about by climate change.  While there are many sources of air pollution, mobile sources account for about 40% of hazardous air emissions per year nationally and up to 65% of harmful emissions in California.]]></description>
      <pubDate>Wed, 28 Dec 2016 11:39:56 GMT</pubDate>
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      <title>Field Testing &amp; Analysis of Braking Performance of In-Service Trucks</title>
      <link>https://rip.trb.org/View/1232733</link>
      <description><![CDATA[The National Highway Traffic Safety Administration (NHTSA) is on the verge of requiring that the stopping distance of new trucks be reduced up to 30 percent below current regulations, depending on the vehicle type. However, this regulation does not address the braking performance of trucks after they have entered into service. Further, the current in-service vehicle inspection procedure, as well as the required annual inspection of commercial motor vehicles (CMVs), may be missing a critical component of braking capability, that of the effectiveness of after-market or replacement brake linings, which have a direct impact on stopping capability. Inspection procedures for CMVs cannot assess the friction available at the pad versus drum (or disc) interface, and there are no data available on the criticality to safety of this aspect of the inspection process. The objective of this project is to obtain a data set of the stopping capability of in-service CMVs. This will be accomplished through the performance-controlled stopping distance and deceleration tests and performance-based brake tests of in-service heavy trucks. The data set will provide a current assessment of the distribution of the braking capabilities and performance required of in-service vehicles that can be compared with that of new vehicles. These stopping performance tests will be complemented by visual inspections of the brake system by qualified inspectors. Federal Motor Carrier Safety Administration (FMCSA) and NHTSA need these data for assessing the effectiveness of current safety standards and regulations, and to support changes to such standards and regulations, including those covering replacement brake linings. Industry has similar interest in the data to assess the importance of replacement linings and maintenance on fleet safety.]]></description>
      <pubDate>Thu, 03 Jan 2013 14:43:49 GMT</pubDate>
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