Investigation of Commercial Motor Vehicle (CMV)-related crashes in Ohio work zones

Final report.; Sponsoring agency: Ohio Department of Transportation, Office of Statewide Planning & Research; Contract or grant no.: 39166; "February 2025."; "Project ID Number 115884."; "Texas A&M Transportation Institute."; "University of Cincinnati."; "Prepared in cooperation with the Ohio Department of Transportation and the U.S. Department of Transportation, Federal Highway Administration"--page ii.; Additional information provided in email: Sate job number: 136519.; Includes bibliographical references (pages 133-137 of Final report).Final report (137 pages) -- [Fact sheet] (2 unnumbered pages).This research project was conducted to identify causation trends and factors that contribute to commercial motor vehicle (CMV)-involved work zone crashes in Ohio. In addition, the research project examined how workspace access points contribute to the CMV crash risk in work zones. In Phase 1, the research team reviewed previous research findings, conducted a preliminary crash analysis, and identified potential projects and novel data sources. In Phase 2, the research team reviewed the characteristics, narratives, and diagrams of fatal, serious injury suspected, and minor injury suspected CMV-involved work zone crashes to determine the factor that primarily influenced the crash, whether a CMV was fault, and whether a work-related CMV was involved. In addition, the research team used two statistical modeling techniques to identify the association between critical factors. The research team also conducted field studies in Phase 2 to observe the operational and safety impact of workspace access points. Based on the crash analysis and field study findings, the research team made 10 recommendations for improving CMV safety in work zones

Other title: Developing a roadmap to advance TSMO's signal data uses

Final report; "Project ID Number: 118091."; "March 2025."; Sponsoring agency: Ohio Department of Transportation, Office of Statewide Planning & Research; Contract or Grant No. 39171; Additional information provided in email: SJN 136678.; "Prepared in cooperation with the Ohio Department of Transportation and the U.S. Department of Transportation, Federal Highway Administration"--page iii.; Includes bibliographical references (pages 15-16 of Final report).Includes bibliographical references (pages 15-16 of Final report).This project highlights the needs and opportunities for ODOT to invest in ATSPM through a national scan of practices, a cost estimate spreadsheet tool, and a roadmap to pilot ATSPM. The integration of signal state based data and performance measures can meet ODOT's operational needs

Ella Sereda's Spring 2025 Art Portfolio

For more of Ella Sereda's art visit: https://ellassereda24.wixsite.com/ellaseredastudi

Other title: Annual report on activities

Began with: 2012 (issued February 1, 2013

Other title: Load rating of bridge TRU-87-0546

"Project ID Number 118088."; "January 2025."; "Prepared in cooperation with the Ohio Department of Transportation and the U.S. Department of Transportation, Federal Highway Administration"--unnumbered page 3.; "Performing organization name ... Ohio Research Institute for Transportation and the Environment (ORITE) ... and E.L. Robinson Engineering of Ohio Company"--unnumbered page 2.; "Sponsoring agency name ... Ohio Department of Transportation, Office of Research and Development"--unnumbered page 2.; Additional information provided in email: SJN 136675.; Includes bibliographical references (Page 33 of Final report). ; Final report; Sponsored by Ohio Department of Transportation, Office of Statewide Planning & Research; Contract or grant no. 39168Final report (3 unnumbered pages, 46 pages, 7 unnumbered leaves of plates) -- [Fact sheet] (2 unnumbered pages).The TRU-87-0546 bridge, a two-lane concrete bridge over Grand River, was instrumented and subjected to controlled live load testing in July 2024. The load response data was collected, filtered, and an ABAQUS finite element model (FEM) was calibrated to determine material properties and boundary conditions based off measured strain data. These material properties and boundary conditions were then applied to both simple span and continuous span MIDAS/Civil FEMs for the structure. The MIDAS/Civil FEMs were utilized to generate dead load and live moment and shear data that was exported to be analyzed in externally developed spreadsheets to calculate live load rating factors (RF) using the AASHTO LRFR and LFR methodology. The RFs that were calculated were compared to the RFs calculated using the AASHTOWare BrR software following the AASHTO LFR methodology. For the simple span models, it was found that the controlling locations for structure RF matched the locations in the AASHTOWare BrR model, but RFs were lower due to differences in modeling geometry. For the continuous models, it was found that the controlling RF locations moved from positive moment region of the end span to the negative moment region over the piers. Controlling RFs were lower overall when compared to the AASHTOWare BrR model. However, utilizing a continuous span model resulted in significantly higher RFs in the positive moment region when compared to the simple span models. It was recommended that the RFs from the continuous span model be used to restrict loading on the structure as it is thought that the simple span models are overly punitive. Additionally, it is thought that the structure acts somewhere between a simple span and continuous span configuration with a rotational spring action at the piers. It is understood that considerably heavier loads have been observed crossing the structure than can be analytically calculated. Based on these observations, further research was recommended to increase the understanding of how the structure is behaving under live load

Other title: Evaluation of temporary traffic signs

Final report; "Prepared for: The Ohio Department of Transportation, Office of Statewide Planning & Research"--Cover.; "January 2025."; Sponsoring agency: Ohio Department of Transportation, Office of Statewide Planning & Research; Contract or grant no. 37852; Additional information provided in email: SJN 136522; PID 115889.; "Performing organization name ... University of Cincinnati, Department of Civil and Architectural Engineering and Construction Management"--Unnumbered page 3.Final report (6 unnumbered pages, 17 pages) -- [Fact sheet] (2 unnumbered pages).This report summarizes the results of a research task that was conducted to identify and evaluate the temporary traffic control signs/ roll up signs that may be used by ODOT Districts and county garages. To achieve these goals, surveys were performed to gather information from ODOT and other DOTs on current signs/ roll up signs to alert the public to construction, maintenance, and potential hazards. In addition, site visits were made to several ODOT Districts to explore their experiences and better understand their challenges with using different types of temporary roll up signs. To further this understanding, interviews were conducted with select transportation stakeholders, including contractors and traffic control companies, as well as each of the state-approved vendors of temporary roll up signs. The associated supports/ bases for the temporary roll up signs, particularly their compatibility, were also considered. Finally, a cost analysis was conducted to evaluate the cost-effectiveness of temporary roll up signs among approved vendors. Based on these investigations and analyses, recommendations were made to empower ODOT personnel to be informed decision makers in the purchasing of cost-effective and durable temporary roll up signs