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US Transportation Collection US Transportation Collection

US Transportation Collection

The US Transportation Collection consists of documents from across all transportation modes with specific focus on research reports from US DOT, state DOTs, and other transportation organizations. Bookmark this collection: https://rosap.ntl.bts.gov/collection_ust or https://doi.org/10.21949/1530857.

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  • Factors Influencing Pedestrian Decisions to Cross MidBlock and Potential Countermeasures
    Factors Influencing Pedestrian Decisions to Cross Mid-Block and Potential Countermeasures
    Filetype[PDF - 4.51 MB]
    :
    Xie, Kun ;
    Yang, Hong
    ...
    2024-11-01
    Abstract:
    About 70% of pedestrian fatalities involve mid-block crossings in Virginia. To address this critical safety issue, this research aims to investigate f...
    File Type:
    Filetype[PDF - 4.51 MB]
    File Type:
    Filetype[PDF - 4.51 MB]
  • Skew Detection System Replacement on Vertical Lift Bridges Phase 2
    Skew Detection System Replacement on Vertical Lift Bridges (Phase 2)
    Filetype[PDF - 3.07 MB]
    :
    Rees, Gareth
    2024-11-01
    Abstract:
    A potential vulnerability of a tower drive vertical lift bridge is a failure to maintain level operation over the length or width of its movable span;...
    File Type:
    Filetype[PDF - 3.07 MB]
    File Type:
    Filetype[PDF - 3.07 MB]
  • Skew Detection System Replacement on Vertical Lift Bridges Phase 2 Technical Summary
    Skew Detection System Replacement on Vertical Lift Bridges (Phase 2) [Technical Summary]
    Filetype[PDF - 506.65 KB]
    :
    Rees, Gareth
    2024-11-01
    Abstract:
    A potential vulnerability of a tower drive vertical lift bridge is a failure to maintain level operation over the length or width of its movable span;...
    File Type:
    Filetype[PDF - 506.65 KB]
    File Type:
    Filetype[PDF - 506.65 KB]
  • Support XRF Determination of Tire Rubber Content in Asphalt Binders
    Support XRF Determination of Tire Rubber Content in Asphalt Binders
    Filetype[PDF - 2.30 MB]
    :
    Bhasin, Amit ;
    Hazlett, Darren
    ...
    2024-11-01
    Abstract:
    This work involved providing support to the Lufkin, Odessa, and Brownwood Districts during their 2024 seal coat season for determining the tire rubber...
    File Type:
    Filetype[PDF - 2.30 MB]
    File Type:
    Filetype[PDF - 2.30 MB]
  • Leveraging Probe Data for Improving Incident Management Practice in Rural Areas
    Leveraging Probe Data for Improving Incident Management Practice in Rural Areas
    Filetype[PDF - 2.59 MB]
    :
    Yang, Jidong J ;
    Wang, Linbing
    ...
    2024-11-01
    Abstract:
    Traffic data are essential for decision-making by state departments of transportation in planning, designing, operating, maintaining, and rehabilitati...
    File Type:
    Filetype[PDF - 2.59 MB]
    File Type:
    Filetype[PDF - 2.59 MB]
  • Using Vehicle Probe Data to Evaluate Speed Limits
    Using Vehicle Probe Data to Evaluate Speed Limits
    Filetype[PDF - 2.09 MB]
    :
    Fitzpatrick, Kay ;
    Kutela, Boniphace
    ...
    2024-11-01
    Abstract:
    When speed limits are set via an engineering speed zone study, the operating speed for a site is needed. This research project investigated whether pr...
    File Type:
    Filetype[PDF - 2.09 MB]
    File Type:
    Filetype[PDF - 2.09 MB]
  • Quantification of the Effectiveness and External Noise of Rumble Strip Designs
    Quantification of the Effectiveness and External Noise of Rumble Strip Designs
    Filetype[PDF - 11.66 MB]
    :
    El-Rayes, Khaled ;
    Ignacio, Ernest-John
    ...
    2024-11-01
    Abstract:
    Rumble strips are roadway safety countermeasures that alert inattentive drivers by generating in-vehicle noise to minimize roadway departure crashes a...
    File Type:
    Filetype[PDF - 11.66 MB]
    File Type:
    Filetype[PDF - 11.66 MB]
  • Predicting Lane Utilization at Signalized Intersections in Advance of Arterial Lane Drops 2024
    Predicting Lane Utilization at Signalized Intersections in Advance of Arterial Lane Drops [2024]
    Filetype[PDF - 2.43 MB]
    :
    Anderson, Camille ;
    Runyan, Samuel L
    ...
    2024-11-01
    Abstract:
    Reducing the number of through travel lanes requires drivers to decide where and when they will merge from the lane that is being dropped (the short l...
    File Type:
    Filetype[PDF - 2.43 MB]
    File Type:
    Filetype[PDF - 2.43 MB]
  • Development of a MASH TL4 Portable Concrete Barrier with Large Scupper
    Development of a MASH TL-4 Portable Concrete Barrier with Large Scupper
    Filetype[PDF - 20.04 MB]
    :
    Bligh, Roger P. ;
    Silvestri-Dobrovolny, Chiara
    ...
    2024-11-01
    Abstract:
    Portable concrete barriers are commonly used as temporary positive protection in work zone applications to shield motorists from hazards in the work z...
    File Type:
    Filetype[PDF - 20.04 MB]
    File Type:
    Filetype[PDF - 20.04 MB]
  • MASH Testing of Luminaire Pole behind Single Slope Traffic Rail
    MASH Testing of Luminaire Pole behind Single Slope Traffic Rail
    Filetype[PDF - 8.76 MB]
    :
    Bligh, Roger P. ;
    Bastin, Brianna
    2024-11-01
    Abstract:
    The purpose of the test reported herein was to assess the performance of a luminaire pole mounted behind a single slope traffic rail according to the ...
    File Type:
    Filetype[PDF - 8.76 MB]
    File Type:
    Filetype[PDF - 8.76 MB]
  • ReExamining Minimum Reinforcement Requirements for Shear Design Final Report
    Re-Examining Minimum Reinforcement Requirements for Shear Design: Final Report
    Filetype[PDF - 45.05 MB]
    :
    Sideris, Petros ;
    Birely, Anna C.
    ...
    2024-11-01
    Abstract:
    Minimum shear reinforcement requirements in the Association of State Highway Transportation Officials Load and Resistance Factor Design (LRFD) Bridge ...
    File Type:
    Filetype[PDF - 45.05 MB]
    File Type:
    Filetype[PDF - 45.05 MB]
  • Safer by Design Pavement Friction
    Safer by Design: Pavement Friction
    Filetype[PDF - 1.73 MB]
    :
    Goehl, Darlene C ;
    Nyamuhokya, Tito
    ...
    2024-11-01
    Abstract:
    Minimizing pavement impact on wet weather crashes is essential to the Wet Surface Crash Reduction Program (WSCRP). Currently, the Texas Department of ...
    File Type:
    Filetype[PDF - 1.73 MB]
    File Type:
    Filetype[PDF - 1.73 MB]
  • Reexamine Minimum Reinforcement Requirements for Shear Design Project Summary
    Re-examine Minimum Reinforcement Requirements for Shear Design [Project Summary]
    Filetype[PDF - 506.38 KB]
    :
    Birely, Anna C. ;
    Hueste, Mary Beth D.
    ...
    2024-11-01
    Abstract:
    Minimum shear reinforcement requirements in the Association of State Highway Transportation Officials Load and Resistance Factor Design (LRFD) Bridge ...
    File Type:
    Filetype[PDF - 506.38 KB]
    File Type:
    Filetype[PDF - 506.38 KB]
  • Load and Resistance Factor Rating Methodology Recommendations for Missouri Bridges
    Load and Resistance Factor Rating Methodology Recommendations for Missouri Bridges
    Filetype[PDF - 3.69 MB]
    :
    Ganesh, Thiagarajan ;
    Finke, John
    ...
    2024-11-01
    Abstract:
    Traditionally, MoDOT performed bridge load ratings using the Load Factor Rating (LFR) methodology. With the adoption of Load and Resistance Factor Des...
    File Type:
    Filetype[PDF - 3.69 MB]
    File Type:
    Filetype[PDF - 3.69 MB]
  • Report on Agency Survey and National Bridge Inventory Analysis for Damaged Steel Girders
    Report on Agency Survey and National Bridge Inventory Analysis for Damaged Steel Girders
    Filetype[PDF - 1.48 MB]
    :
    Schissler, Limo R ;
    Ahershinge, Sanjana
    ...
    2024-11-01
    Abstract:
    Bridge strikes—events where over-height vehicles impact bridge superstructures—are common across the United States and pose significant challenges...
    File Type:
    Filetype[PDF - 1.48 MB]
    File Type:
    Filetype[PDF - 1.48 MB]
  • Reconsidering the Impact of Access Spacing on Crash Risk
    Reconsidering the Impact of Access Spacing on Crash Risk
    Filetype[PDF - 9.60 MB]
    :
    Xie, Kun ;
    Yang, Hong
    ...
    2024-11-01
    Abstract:
    The spacing of access points is one of the most critical elements in access management. This project aims to investigate the effect of access spacing ...
    File Type:
    Filetype[PDF - 9.60 MB]
    File Type:
    Filetype[PDF - 9.60 MB]
  • Determining an Acceptable California Bearing Ratio CBR Value for Kansas Subgrades Based on Pavement Distress Data
    Determining an Acceptable California Bearing Ratio (CBR) Value for Kansas Subgrades Based on Pavement Distress Data
    Filetype[PDF - 2.00 MB]
    :
    Perić, Dunja ;
    Goh, Gyuhyeong
    ...
    2024-11-01
    Abstract:
    The major objective of this study was to develop scientifically based recommendations for acceptable California Bearing Ratio (CBR) values for Kansas ...
    File Type:
    Filetype[PDF - 2.00 MB]
    File Type:
    Filetype[PDF - 2.00 MB]
  • Determining an Acceptable California Bearing Ratio CBR Value for Kansas Subgrades Based on Pavement Distress Data Technical Summary
    Determining an Acceptable California Bearing Ratio (CBR) Value for Kansas Subgrades Based on Pavement Distress Data [Technical Summary]
    Filetype[PDF - 266.60 KB]
    :
    Perić, Dunja ;
    Goh, Gyuhyeong
    ...
    2024-11-01
    Abstract:
    California Bearing Ratio (CBR) of subgrade soils, which can be used in design of flexible pavements, can be obtained from Dynamic Cone Penetrometer (D...
    File Type:
    Filetype[PDF - 266.60 KB]
    File Type:
    Filetype[PDF - 266.60 KB]
  • Dowel Concrete Interface Material Categorization Performance in Isolated Test Slabs
    Dowel — Concrete Interface Material Categorization & Performance in Isolated Test Slabs
    Filetype[PDF - 5.71 MB]
    :
    Izevbekhai, Bernard Igbafen ;
    Aydin, Ceren
    ...
    2024-11-01
    Abstract:
    The Minnesota Department of Transportation (MnDOT) investigated the use of dowel bars with various anchoringmethods. This report examines the characte...
    File Type:
    Filetype[PDF - 5.71 MB]
    File Type:
    Filetype[PDF - 5.71 MB]
  • Beautifying Tennessees Roadways and Enhancing Its Ecology By Strategizing Pollinator Habitat Potential
    Beautifying Tennessee's Roadways and Enhancing Its Ecology By Strategizing Pollinator Habitat Potential
    Filetype[PDF - 6.59 MB]
    :
    Waldron, Brian ;
    Reyes, Paulina
    ...
    2024-11-01
    Abstract:
    A study was initiated through funding from the Tennessee Department of Transportation (TDOT) and the Federal Highway Administration to develop strateg...
    File Type:
    Filetype[PDF - 6.59 MB]
    File Type:
    Filetype[PDF - 6.59 MB]
21 - 40 / 32343
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