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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>Research in Progress (RIP)</title>
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      <title>Development of a CAV Testbed-enhanced Smart Campus at Morgan State University – Phase IV: Smart Corridor Expansion and Data-Driven Intersection Safety Monitoring</title>
      <link>https://rip.trb.org/View/2742148</link>
      <description><![CDATA[Phase IV builds upon the infrastructure and algorithms developed in Phases I through III by expanding the SMART corridor testbed and introducing a data-driven framework for continuous intersection safety monitoring. While earlier phases focused on LiDAR-enabled signal control and connected vehicle messaging, this phase emphasizes corridor expansion, safety analytics, and statewide V2X readiness.

The project analyzes pedestrian safety near the pedestrian bridge within the SMART corridor to understand unsafe crossing behavior and vehicle-pedestrian conflicts, and develops a new Intersection Safety Score framework using LiDAR trajectory data and signal-violation metrics, integrated into a Power BI dashboard for real-time monitoring. The SMART corridor testbed will be expanded to the Hillen Road and Harford Road intersection, a statewide inventory and operational assessment of Roadside Units (RSUs) across Maryland will be conducted, and the team will collaborate with Baltimore City DOT to integrate advanced V2X signal applications including SPaT broadcasting and LiDAR-based signal actuation.

The project will deliver a comprehensive analysis of pedestrian safety risks near the SMART corridor pedestrian bridge; an Intersection Safety Score methodology that quantifies intersection risk using trajectory-based conflict analysis of red- and yellow-light violations, vehicle-vehicle and vehicle-pedestrian conflicts, and near-miss events; and a Power BI safety-monitoring dashboard enabling agencies to visualize and track intersection safety performance. It will expand the SMART corridor testbed to the Hillen Road and Harford Road intersection through LiDAR installation, sensor calibration, and integration with existing connected vehicle systems. A statewide inventory and operational readiness assessment of Maryland’s RSUs will evaluate device status, firmware compatibility, and SAE J2735 messaging capability, and the project will conduct field validation of V2X-enabled signal applications, including SPaT broadcasting, LiDAR-based signal actuation, and trajectory-based interventions such as dynamic all-red extensions.

]]></description>
      <pubDate>Sat, 01 Aug 2026 10:38:06 GMT</pubDate>
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      <title>SPR-4535: Development of a Formalized Program for In-service Inspection of Pedestrian Bridges</title>
      <link>https://rip.trb.org/View/1756270</link>
      <description><![CDATA[Many pedestrian bridges are complex structures and may utilize non-redundant cable supported walkways, curved super structures, and materials not commonly used in highway bridges. Some of these bridges are over busy state highways and carry many pedestrians daily. The absence of any state-wide uniform inspection requirements elevates the risk associated with such bridges. This research project addresses the issues related to in-service inspection needs associated with pedestrian bridges.]]></description>
      <pubDate>Tue, 08 Dec 2020 12:32:36 GMT</pubDate>
      <guid>https://rip.trb.org/View/1756270</guid>
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      <title>Improving Connectivity: Innovative Fiber-Reinforced Polymer Structures for Wildlife, Bicyclists, and/or Pedestrians</title>
      <link>https://rip.trb.org/View/1752452</link>
      <description><![CDATA[Ecologists and engineers are constantly exploring new methods and adapting existing techniques to improve mitigation measures that increase motorist safety and wildlife species conservation. Crossing structures, combined with fences, are some of the most highly effective mitigation measures that are employed around the world due to their ability to not only reduce wildlife-vehicle collisions (WVCs) with large animals and increase motorist safety, but they also provide an additional benefit that other measures don’t, they help maintain habitat connectivity across transportation networks for many types and sizes of wildlife. Published research on bridge designs and materials for wildlife crossings is limited and suggests relatively little innovation has occurred. Given wildlife crossing structures are a critical contribution to highway mitigation strategies for reducing WVCs while also providing for habitat connectivity, species movement and migrations, the need for new, resourceful, and innovative techniques is warranted. This research explores the promising application of fiber-reinforced polymers (FRPs) to wildlife crossing structures. If FRP structural designs can meet all bridge specifications set by transportation agencies and prove to have less expensive life cycles, they will provide a new approach that is more efficient, more quickly deployed, lasts longer, requires less maintenance and is ultimately more adaptable than traditional materials. This project explores what is know about FRP bridge structures and materials that can be adapted for use in crossing structures over highways for wildlife and, by extension, for bicyclists and pedestrians as well.]]></description>
      <pubDate>Thu, 19 Nov 2020 14:12:00 GMT</pubDate>
      <guid>https://rip.trb.org/View/1752452</guid>
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