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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>Is transport modelling ‘a bit of a racket’? On the role of transport planning support systems in England</title>
      <link>https://trid.trb.org/View/2676360</link>
      <description><![CDATA[As transport planning support systems (TPSS) such as models, frameworks and dashboards grow in prevalence among devolved, combined and regional authorities, it is essential to understand how these systems are being applied, and the institutional framework around them. To what extent do TPSS, and the abductions they make about society as it really is, impact transport policy outcomes? And how do systemic barriers shape the way that GIS systems can be used in practice? The authors use interviews with practitioners across England’s sub-national transport bodies (STBs) to understand contemporary attitudes surrounding TPSS and their use cases, clarifying existing assumptions regarding transport modelling. The authors find that in England there is a vicious cycle comprising a lack of multi-level governance and an overly austere funding model for local and regional authorities that hinder the possibilities for truly data-driven decision-making.]]></description>
      <pubDate>Tue, 24 Mar 2026 16:18:20 GMT</pubDate>
      <guid>https://trid.trb.org/View/2676360</guid>
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    <item>
      <title>CARMA Platform Version 3.6.0 [supporting software]</title>
      <link>https://trid.trb.org/View/2675031</link>
      <description><![CDATA[The Federal Highway Administration (FHWA) developed the innovative CARMA℠ Platform to encourage collaboration with the goal of improving transportation efficiency and safety. FHWA's interest in advancing Transportation Systems Management and Operations (TSMO) strategies with automated driving technology is focused on how infrastructure can move traffic more efficiently. CARMA enables Automated Driving Systems (ADS) to navigate more safely and efficiently with other vehicles and roadway infrastructure though communication and cooperation. CARMA was designed using open source software (OSS) and is available on GitHub. The unique platform was created to work collaboratively with any vehicle, hardware, or control system. By simplifying software development and providing access to increased functionality and a community of developers, CARMA enables the research and development (R&D) of cooperative automated driving system (CADS) capabilities to support TSMO. CARMA also will develop a concept of operations for new TSMO strategies, such as identifying Traffic Incident Management (TIM) scenarios that provide new strategies for first responder use cases interacting with ADS. This research will accelerate market readiness and the deployment of cooperative automated driving technology, while advancing safety, security, data, and artificial intelligence. Beyond reducing traffic congestion and improving transportation safety, CARMA will support industry collaboration and expand on existing automation capabilities to reduce R&D time and advance cooperative automated driving technology. CARMA promotes collaboration and participation from communities of engineers and researchers to advance the understanding of cooperative automated driving using OSS and agile project management practices. CARMA-platform release version 3.6.0 is comprised of five major enhancements. First, added ADS unobstructed lane change. Second, CTM Move-over law – Upon receiving a request from an emergency vehicle, CARMA Platform plans move over to the adjacent open lane. Third, added Geofence speed, gap control and lane closure. And fourth, added CARMA-cloud integration. Along with the above enhancements, several bug fixes and CI related enhancements are included in this release.]]></description>
      <pubDate>Mon, 16 Mar 2026 08:41:16 GMT</pubDate>
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    <item>
      <title>CARMA Platform Version 3.7.0 [supporting software]</title>
      <link>https://trid.trb.org/View/2675032</link>
      <description><![CDATA[The Federal Highway Administration (FHWA) developed the innovative CARMA℠ Platform to encourage collaboration with the goal of improving transportation efficiency and safety. FHWA's interest in advancing Transportation Systems Management and Operations (TSMO) strategies with automated driving technology is focused on how infrastructure can move traffic more efficiently. CARMA enables Automated Driving Systems (ADS) to navigate more safely and efficiently with other vehicles and roadway infrastructure though communication and cooperation. CARMA was designed using open source software (OSS) and is available on GitHub. The unique platform was created to work collaboratively with any vehicle, hardware, or control system. By simplifying software development and providing access to increased functionality and a community of developers, CARMA enables the research and development (R&D) of cooperative automated driving system (CADS) capabilities to support TSMO. CARMA also will develop a concept of operations for new TSMO strategies, such as identifying Traffic Incident Management (TIM) scenarios that provide new strategies for first responder use cases interacting with ADS. This research will accelerate market readiness and the deployment of cooperative automated driving technology, while advancing safety, security, data, and artificial intelligence. Beyond reducing traffic congestion and improving transportation safety, CARMA will support industry collaboration and expand on existing automation capabilities to reduce R&D time and advance cooperative automated driving technology. CARMA promotes collaboration and participation from communities of engineers and researchers to advance the understanding of cooperative automated driving using OSS and agile project management practices. CARMA-platform release version 3.7.0 is comprised of three major enhancements. First, Unobstructed lane change. Second Cooperative Lane Follow (CLF) - All Predecessor Following (APF) platooning. Third, Cooperative Traffic Management - Speed Advisory. Along with the above enhancements, several bug fixes and CI related enhancements are included in this release.]]></description>
      <pubDate>Mon, 16 Mar 2026 08:41:16 GMT</pubDate>
      <guid>https://trid.trb.org/View/2675032</guid>
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    <item>
      <title>CARMA Platform Version 3.7.1 [supporting software]</title>
      <link>https://trid.trb.org/View/2675033</link>
      <description><![CDATA[The Federal Highway Administration (FHWA) developed the innovative CARMA℠ Platform to encourage collaboration with the goal of improving transportation efficiency and safety. FHWA's interest in advancing Transportation Systems Management and Operations (TSMO) strategies with automated driving technology is focused on how infrastructure can move traffic more efficiently. CARMA enables Automated Driving Systems (ADS) to navigate more safely and efficiently with other vehicles and roadway infrastructure though communication and cooperation. CARMA was designed using open source software (OSS) and is available on GitHub. The unique platform was created to work collaboratively with any vehicle, hardware, or control system. By simplifying software development and providing access to increased functionality and a community of developers, CARMA enables the research and development (R&D) of cooperative automated driving system (CADS) capabilities to support TSMO. CARMA also will develop a concept of operations for new TSMO strategies, such as identifying Traffic Incident Management (TIM) scenarios that provide new strategies for first responder use cases interacting with ADS. This research will accelerate market readiness and the deployment of cooperative automated driving technology, while advancing safety, security, data, and artificial intelligence. Beyond reducing traffic congestion and improving transportation safety, CARMA will support industry collaboration and expand on existing automation capabilities to reduce R&D time and advance cooperative automated driving technology. CARMA promotes collaboration and participation from communities of engineers and researchers to advance the understanding of cooperative automated driving using OSS and agile project management practices.]]></description>
      <pubDate>Mon, 16 Mar 2026 08:41:16 GMT</pubDate>
      <guid>https://trid.trb.org/View/2675033</guid>
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    <item>
      <title>CARMA Platform Version 3.8.0 [supporting software]</title>
      <link>https://trid.trb.org/View/2675034</link>
      <description><![CDATA[The Federal Highway Administration (FHWA) developed the innovative CARMA℠ Platform to encourage collaboration with the goal of improving transportation efficiency and safety. FHWA's interest in advancing Transportation Systems Management and Operations (TSMO) strategies with automated driving technology is focused on how infrastructure can move traffic more efficiently. CARMA enables Automated Driving Systems (ADS) to navigate more safely and efficiently with other vehicles and roadway infrastructure though communication and cooperation. CARMA was designed using open source software (OSS) and is available on GitHub. The unique platform was created to work collaboratively with any vehicle, hardware, or control system. By simplifying software development and providing access to increased functionality and a community of developers, CARMA enables the research and development (R&D) of cooperative automated driving system (CADS) capabilities to support TSMO. CARMA also will develop a concept of operations for new TSMO strategies, such as identifying Traffic Incident Management (TIM) scenarios that provide new strategies for first responder use cases interacting with ADS. This research will accelerate market readiness and the deployment of cooperative automated driving technology, while advancing safety, security, data, and artificial intelligence. Beyond reducing traffic congestion and improving transportation safety, CARMA will support industry collaboration and expand on existing automation capabilities to reduce R&D time and advance cooperative automated driving technology. CARMA promotes collaboration and participation from communities of engineers and researchers to advance the understanding of cooperative automated driving using OSS and agile project management practices. CARMA-platform release version 3.8.0 is comprised of two major enhancements. First, Cooperative Traffic Signaling (CTS), fixed signal transit for Work Zones using a SPaT message a vehicle plans a maneuver to proceed through the intersection as efficiently as possible, or come to a safe stop if needed. Second lane geometry updates affected by a geofence to split and stitch lanelets together to match the geofence requirements. Along with the above enhancements, several bug fixes and CI related enhancements are included in this release.]]></description>
      <pubDate>Mon, 16 Mar 2026 08:41:16 GMT</pubDate>
      <guid>https://trid.trb.org/View/2675034</guid>
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    <item>
      <title>CARMA Platform Version 3.8.1 [supporting software]</title>
      <link>https://trid.trb.org/View/2675035</link>
      <description><![CDATA[The Federal Highway Administration (FHWA) developed the innovative CARMA℠ Platform to encourage collaboration with the goal of improving transportation efficiency and safety. FHWA's interest in advancing Transportation Systems Management and Operations (TSMO) strategies with automated driving technology is focused on how infrastructure can move traffic more efficiently. CARMA enables Automated Driving Systems (ADS) to navigate more safely and efficiently with other vehicles and roadway infrastructure though communication and cooperation. CARMA was designed using open source software (OSS) and is available on GitHub. The unique platform was created to work collaboratively with any vehicle, hardware, or control system. By simplifying software development and providing access to increased functionality and a community of developers, CARMA enables the research and development (R&D) of cooperative automated driving system (CADS) capabilities to support TSMO. CARMA also will develop a concept of operations for new TSMO strategies, such as identifying Traffic Incident Management (TIM) scenarios that provide new strategies for first responder use cases interacting with ADS. This research will accelerate market readiness and the deployment of cooperative automated driving technology, while advancing safety, security, data, and artificial intelligence. Beyond reducing traffic congestion and improving transportation safety, CARMA will support industry collaboration and expand on existing automation capabilities to reduce R&D time and advance cooperative automated driving technology. CARMA promotes collaboration and participation from communities of engineers and researchers to advance the understanding of cooperative automated driving using OSS and agile project management practices.]]></description>
      <pubDate>Mon, 16 Mar 2026 08:41:16 GMT</pubDate>
      <guid>https://trid.trb.org/View/2675035</guid>
    </item>
    <item>
      <title>CARMA Platform Version 3.8.2 [supporting software]</title>
      <link>https://trid.trb.org/View/2675036</link>
      <description><![CDATA[The Federal Highway Administration (FHWA) developed the innovative CARMA℠ Platform to encourage collaboration with the goal of improving transportation efficiency and safety. FHWA's interest in advancing Transportation Systems Management and Operations (TSMO) strategies with automated driving technology is focused on how infrastructure can move traffic more efficiently. CARMA enables Automated Driving Systems (ADS) to navigate more safely and efficiently with other vehicles and roadway infrastructure though communication and cooperation. CARMA was designed using open source software (OSS) and is available on GitHub. The unique platform was created to work collaboratively with any vehicle, hardware, or control system. By simplifying software development and providing access to increased functionality and a community of developers, CARMA enables the research and development (R&D) of cooperative automated driving system (CADS) capabilities to support TSMO. CARMA also will develop a concept of operations for new TSMO strategies, such as identifying Traffic Incident Management (TIM) scenarios that provide new strategies for first responder use cases interacting with ADS. This research will accelerate market readiness and the deployment of cooperative automated driving technology, while advancing safety, security, data, and artificial intelligence. Beyond reducing traffic congestion and improving transportation safety, CARMA will support industry collaboration and expand on existing automation capabilities to reduce R&D time and advance cooperative automated driving technology. CARMA promotes collaboration and participation from communities of engineers and researchers to advance the understanding of cooperative automated driving using OSS and agile project management practices.]]></description>
      <pubDate>Mon, 16 Mar 2026 08:41:16 GMT</pubDate>
      <guid>https://trid.trb.org/View/2675036</guid>
    </item>
    <item>
      <title>CARMA Platform Version 3.9.0 [supporting software]</title>
      <link>https://trid.trb.org/View/2675039</link>
      <description><![CDATA[The Federal Highway Administration (FHWA) developed the innovative CARMA℠ Platform to encourage collaboration with the goal of improving transportation efficiency and safety. FHWA's interest in advancing Transportation Systems Management and Operations (TSMO) strategies with automated driving technology is focused on how infrastructure can move traffic more efficiently. CARMA enables Automated Driving Systems (ADS) to navigate more safely and efficiently with other vehicles and roadway infrastructure though communication and cooperation. CARMA was designed using open source software (OSS) and is available on GitHub. The unique platform was created to work collaboratively with any vehicle, hardware, or control system. By simplifying software development and providing access to increased functionality and a community of developers, CARMA enables the research and development (R&D) of cooperative automated driving system (CADS) capabilities to support TSMO. CARMA also will develop a concept of operations for new TSMO strategies, such as identifying Traffic Incident Management (TIM) scenarios that provide new strategies for first responder use cases interacting with ADS. This research will accelerate market readiness and the deployment of cooperative automated driving technology, while advancing safety, security, data, and artificial intelligence. Beyond reducing traffic congestion and improving transportation safety, CARMA will support industry collaboration and expand on existing automation capabilities to reduce R&D time and advance cooperative automated driving technology. CARMA promotes collaboration and participation from communities of engineers and researchers to advance the understanding of cooperative automated driving using OSS and agile project management practices. CARMA-platform release version 3.9.0 is comprised of one major enhancement - Updated Carma Freight Port Drayage plugin web service integration. Along with the above enhancement, several bug fixes and CI related enhancements are included in this release.]]></description>
      <pubDate>Mon, 16 Mar 2026 08:41:16 GMT</pubDate>
      <guid>https://trid.trb.org/View/2675039</guid>
    </item>
    <item>
      <title>CARMA Platform Version 3.10.0 [supporting software]</title>
      <link>https://trid.trb.org/View/2675040</link>
      <description><![CDATA[The Federal Highway Administration (FHWA) developed the innovative CARMA℠ Platform to encourage collaboration with the goal of improving transportation efficiency and safety. FHWA's interest in advancing Transportation Systems Management and Operations (TSMO) strategies with automated driving technology is focused on how infrastructure can move traffic more efficiently. CARMA enables Automated Driving Systems (ADS) to navigate more safely and efficiently with other vehicles and roadway infrastructure though communication and cooperation. CARMA was designed using open source software (OSS) and is available on GitHub. The unique platform was created to work collaboratively with any vehicle, hardware, or control system. By simplifying software development and providing access to increased functionality and a community of developers, CARMA enables the research and development (R&D) of cooperative automated driving system (CADS) capabilities to support TSMO. CARMA also will develop a concept of operations for new TSMO strategies, such as identifying Traffic Incident Management (TIM) scenarios that provide new strategies for first responder use cases interacting with ADS. This research will accelerate market readiness and the deployment of cooperative automated driving technology, while advancing safety, security, data, and artificial intelligence. Beyond reducing traffic congestion and improving transportation safety, CARMA will support industry collaboration and expand on existing automation capabilities to reduce R&D time and advance cooperative automated driving technology. CARMA promotes collaboration and participation from communities of engineers and researchers to advance the understanding of cooperative automated driving using OSS and agile project management practices. CARMA-platform release version 3.10.0 is comprised of two major enhancements. First, ROS1 Noetic (Updating the underlying ROS version from ROS Kinetic to ROS Noetic). Second updating the underlying OS from Ubuntu 16.04 to Ubuntu 20.04 to support the ROS2 migration which will use Ubuntu 20.04. Along with the above enhancements, several bug fixes and CI related enhancements are included in this release.]]></description>
      <pubDate>Mon, 16 Mar 2026 08:41:16 GMT</pubDate>
      <guid>https://trid.trb.org/View/2675040</guid>
    </item>
    <item>
      <title>CARMA Platform Version 3.11.0 [supporting software]</title>
      <link>https://trid.trb.org/View/2675042</link>
      <description><![CDATA[The Federal Highway Administration (FHWA) developed the innovative CARMA℠ Platform to encourage collaboration with the goal of improving transportation efficiency and safety. FHWA's interest in advancing Transportation Systems Management and Operations (TSMO) strategies with automated driving technology is focused on how infrastructure can move traffic more efficiently. CARMA enables Automated Driving Systems (ADS) to navigate more safely and efficiently with other vehicles and roadway infrastructure though communication and cooperation. CARMA was designed using open source software (OSS) and is available on GitHub. The unique platform was created to work collaboratively with any vehicle, hardware, or control system. By simplifying software development and providing access to increased functionality and a community of developers, CARMA enables the research and development (R&D) of cooperative automated driving system (CADS) capabilities to support TSMO. CARMA also will develop a concept of operations for new TSMO strategies, such as identifying Traffic Incident Management (TIM) scenarios that provide new strategies for first responder use cases interacting with ADS. This research will accelerate market readiness and the deployment of cooperative automated driving technology, while advancing safety, security, data, and artificial intelligence. Beyond reducing traffic congestion and improving transportation safety, CARMA will support industry collaboration and expand on existing automation capabilities to reduce R&D time and advance cooperative automated driving technology. CARMA promotes collaboration and participation from communities of engineers and researchers to advance the understanding of cooperative automated driving using OSS and agile project management practices.]]></description>
      <pubDate>Mon, 16 Mar 2026 08:41:16 GMT</pubDate>
      <guid>https://trid.trb.org/View/2675042</guid>
    </item>
    <item>
      <title>CARMA Platform Version 4.0.3 [supporting software]</title>
      <link>https://trid.trb.org/View/2675043</link>
      <description><![CDATA[The Federal Highway Administration (FHWA) developed the innovative CARMA℠ Platform to encourage collaboration with the goal of improving transportation efficiency and safety. FHWA's interest in advancing Transportation Systems Management and Operations (TSMO) strategies with automated driving technology is focused on how infrastructure can move traffic more efficiently. CARMA enables Automated Driving Systems (ADS) to navigate more safely and efficiently with other vehicles and roadway infrastructure though communication and cooperation. CARMA was designed using open source software (OSS) and is available on GitHub. The unique platform was created to work collaboratively with any vehicle, hardware, or control system. By simplifying software development and providing access to increased functionality and a community of developers, CARMA enables the research and development (R&D) of cooperative automated driving system (CADS) capabilities to support TSMO. CARMA also will develop a concept of operations for new TSMO strategies, such as identifying Traffic Incident Management (TIM) scenarios that provide new strategies for first responder use cases interacting with ADS. This research will accelerate market readiness and the deployment of cooperative automated driving technology, while advancing safety, security, data, and artificial intelligence. Beyond reducing traffic congestion and improving transportation safety, CARMA will support industry collaboration and expand on existing automation capabilities to reduce R&D time and advance cooperative automated driving technology. CARMA promotes collaboration and participation from communities of engineers and researchers to advance the understanding of cooperative automated driving using OSS and agile project management practices. CARMA-platform release version 4.0.0 is first version that starts of the transition of system to ROS2 with V2X, Object Perception and some driver nodes transitioned to ROS2 and others still using ROS1 with communication enabled using ROS bridge. This release includes feature enhancements in support of the following proof-of-concept applications to demonstrate the following TSMO use cases: Cooperative Traffic Signaling (CTS), fixed signal traversal. Commercial Motor Vehicle (CMV) - Work Zone. Along with the above enhancements, several bug fixes are included in this release. Note: V2X Hub release 7.2 includes CARMA streets plugin for following operations: Enhancement to receive, decode and forward the Traffic Control Message (TCM) and Mobility Operations Message (MOM) to enable lane restrictions by vehicle type and to record and notify the vehicle acknowledgement of receiving a TCM from infrastructure.]]></description>
      <pubDate>Mon, 16 Mar 2026 08:41:16 GMT</pubDate>
      <guid>https://trid.trb.org/View/2675043</guid>
    </item>
    <item>
      <title>CARMA Platform Version 4.2.0 [supporting software]</title>
      <link>https://trid.trb.org/View/2675044</link>
      <description><![CDATA[The Federal Highway Administration (FHWA) developed the innovative CARMA℠ Platform to encourage collaboration with the goal of improving transportation efficiency and safety. FHWA's interest in advancing Transportation Systems Management and Operations (TSMO) strategies with automated driving technology is focused on how infrastructure can move traffic more efficiently. CARMA enables Automated Driving Systems (ADS) to navigate more safely and efficiently with other vehicles and roadway infrastructure though communication and cooperation. CARMA was designed using open source software (OSS) and is available on GitHub. The unique platform was created to work collaboratively with any vehicle, hardware, or control system. By simplifying software development and providing access to increased functionality and a community of developers, CARMA enables the research and development (R&D) of cooperative automated driving system (CADS) capabilities to support TSMO. CARMA also will develop a concept of operations for new TSMO strategies, such as identifying Traffic Incident Management (TIM) scenarios that provide new strategies for first responder use cases interacting with ADS. This research will accelerate market readiness and the deployment of cooperative automated driving technology, while advancing safety, security, data, and artificial intelligence. Beyond reducing traffic congestion and improving transportation safety, CARMA will support industry collaboration and expand on existing automation capabilities to reduce R&D time and advance cooperative automated driving technology. CARMA promotes collaboration and participation from communities of engineers and researchers to advance the understanding of cooperative automated driving using OSS and agile project management practices. CARMA-platform release version 4.2.0 is comprised of three major enhancements. First, Cooperative Traffic Management (CTM) Speed harmonization. Second, Cooperative Lane Follow (CLF) - Platoon Formation, Operation, Dissolution. Third, Cooperative Lane Coordination (CLC), cooperative lane merge. Along with the above enhancements, several bug fixes and CI related enhancements are included in this release.]]></description>
      <pubDate>Mon, 16 Mar 2026 08:41:16 GMT</pubDate>
      <guid>https://trid.trb.org/View/2675044</guid>
    </item>
    <item>
      <title>CARMA Platform Version 4.3.0 [supporting software]</title>
      <link>https://trid.trb.org/View/2675045</link>
      <description><![CDATA[The Federal Highway Administration (FHWA) developed the innovative CARMA℠ Platform to encourage collaboration with the goal of improving transportation efficiency and safety. FHWA's interest in advancing Transportation Systems Management and Operations (TSMO) strategies with automated driving technology is focused on how infrastructure can move traffic more efficiently. CARMA enables Automated Driving Systems (ADS) to navigate more safely and efficiently with other vehicles and roadway infrastructure though communication and cooperation. CARMA was designed using open source software (OSS) and is available on GitHub. The unique platform was created to work collaboratively with any vehicle, hardware, or control system. By simplifying software development and providing access to increased functionality and a community of developers, CARMA enables the research and development (R&D) of cooperative automated driving system (CADS) capabilities to support TSMO. CARMA also will develop a concept of operations for new TSMO strategies, such as identifying Traffic Incident Management (TIM) scenarios that provide new strategies for first responder use cases interacting with ADS. This research will accelerate market readiness and the deployment of cooperative automated driving technology, while advancing safety, security, data, and artificial intelligence. Beyond reducing traffic congestion and improving transportation safety, CARMA will support industry collaboration and expand on existing automation capabilities to reduce R&D time and advance cooperative automated driving technology. CARMA promotes collaboration and participation from communities of engineers and researchers to advance the understanding of cooperative automated driving using OSS and agile project management practices. CARMA system release version 4.3.0 is comprised of new features in both CARMA Streets and CARMA Platform to support Adaptive Traffic Signal Optimization in a cooperative driving automation (CDA) environment; a new feature in CARMA Platform to support Cellular Traffic Control Messages; CARMA Platform ROS upgrades; and an upgraded CARMA XiL Co-simulation tool to support CARMA Platform Robotics Operating System 2 (ROS2) implementation. Along with the above enhancements, several bug fixes and CI related enhancements are included in this release.]]></description>
      <pubDate>Mon, 16 Mar 2026 08:41:16 GMT</pubDate>
      <guid>https://trid.trb.org/View/2675045</guid>
    </item>
    <item>
      <title>CARMA Platform Version 4.4.0 [supporting software]</title>
      <link>https://trid.trb.org/View/2675046</link>
      <description><![CDATA[The Federal Highway Administration (FHWA) developed the innovative CARMA℠ Platform to encourage collaboration with the goal of improving transportation efficiency and safety. FHWA's interest in advancing Transportation Systems Management and Operations (TSMO) strategies with automated driving technology is focused on how infrastructure can move traffic more efficiently. CARMA enables Automated Driving Systems (ADS) to navigate more safely and efficiently with other vehicles and roadway infrastructure though communication and cooperation. CARMA was designed using open-source software (OSS) and is available on GitHub. The unique platform was created to work collaboratively with any vehicle, hardware, or control system. By simplifying software development and providing access to increased functionality and a community of developers, CARMA enables the research and development (R&D) of cooperative automated driving system (CADS) capabilities to support TSMO. CARMA also will develop a concept of operations for new TSMO strategies, such as identifying Traffic Incident Management (TIM) scenarios that provide new strategies for first responder use cases interacting with ADS. This research will accelerate market readiness and the deployment of cooperative automated driving technology, while advancing safety, security, data, and artificial intelligence. Beyond reducing traffic congestion and improving transportation safety, CARMA will support industry collaboration and expand on existing automation capabilities to reduce R&D time and advance cooperative automated driving technology. CARMA promotes collaboration and participation from communities of engineers and researchers to advance the understanding of cooperative automated driving using OSS and agile project management practices. CARMA system release version 4.4.0 is comprised of new features in CARMA Cloud, CARMA Messenger, and CARMA Platform to support Freight Emergency Response functionality; a newly created Workforce Development (WFD) CDA telematics tool; and CARMA Platform Robotics Operating System 2 (ROS2) upgrades; Along with the above enhancements, several bug fixes and CI related enhancements are included in this release.]]></description>
      <pubDate>Mon, 16 Mar 2026 08:41:16 GMT</pubDate>
      <guid>https://trid.trb.org/View/2675046</guid>
    </item>
    <item>
      <title>CARMA Platform Version 4.4.1 [supporting software]</title>
      <link>https://trid.trb.org/View/2675047</link>
      <description><![CDATA[The Federal Highway Administration (FHWA) developed the innovative CARMA℠ Platform to encourage collaboration with the goal of improving transportation efficiency and safety. FHWA's interest in advancing Transportation Systems Management and Operations (TSMO) strategies with automated driving technology is focused on how infrastructure can move traffic more efficiently. CARMA enables Automated Driving Systems (ADS) to navigate more safely and efficiently with other vehicles and roadway infrastructure though communication and cooperation. CARMA was designed using open source software (OSS) and is available on GitHub. The unique platform was created to work collaboratively with any vehicle, hardware, or control system. By simplifying software development and providing access to increased functionality and a community of developers, CARMA enables the research and development (R&D) of cooperative automated driving system (CADS) capabilities to support TSMO. CARMA also will develop a concept of operations for new TSMO strategies, such as identifying Traffic Incident Management (TIM) scenarios that provide new strategies for first responder use cases interacting with ADS. This research will accelerate market readiness and the deployment of cooperative automated driving technology, while advancing safety, security, data, and artificial intelligence. Beyond reducing traffic congestion and improving transportation safety, CARMA will support industry collaboration and expand on existing automation capabilities to reduce R&D time and advance cooperative automated driving technology. CARMA promotes collaboration and participation from communities of engineers and researchers to advance the understanding of cooperative automated driving using OSS and agile project management practices. CARMA-platform release version 4.4.1 is a hotfix release for 4.4.0.]]></description>
      <pubDate>Mon, 16 Mar 2026 08:41:16 GMT</pubDate>
      <guid>https://trid.trb.org/View/2675047</guid>
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