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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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Showing 4121 - 4140 of 36011 results
  • Calibrating the Highway Safety Manual Crash Prediction Models for Urban and Suburban Arterial Intersections in Kansas
    Calibrating the Highway Safety Manual Crash Prediction Models for Urban and Suburban Arterial Intersections in Kansas
    Dissanayake, Sunanda ;
    Karmacharya, Rijesh
    2020-11-01 | PDF
    Kansas experienced about 60,000 crashes annually from 2013 to 2016, 25% of which occurred at urban intersections. Hence, urban intersections in Kansas are one of the critical locations in terms of frequency of crashes. Therefore, an accurate prediction of crashes at these locations would help identify critical intersections with a higher probabilit ...
  • Evaluation of Use of Crushed Hydraulic Cement Concrete CHCC as an Additive To Base CourseSubbase Material
    Evaluation of Use of Crushed Hydraulic Cement Concrete (CHCC) as an Additive To Base Course/Subbase Material
    Tanyu, Burak F ;
    Abbaspour, Aiyoub
    2020-11-01 | PDF
    All new pavement systems constructed under the jurisdiction of the Virginia Department of Transportation (VDOT) require drainage systems. These drainage systems are constructed with perforated pipe and coarse aggregate that surrounds the pipe. Additionally, to separate the coarse aggregate from the base course and to create a filter, the drainage s ...
  • Investigation of Performance of Skewed Reinforcing in InvertedT Bridge Caps
    Investigation of Performance of Skewed Reinforcing in Inverted-T Bridge Caps
    Wang, Jiaji ;
    Oz, Yagiz
    2020-11-01 | PDF
    Reinforced concrete inverted-T bridge caps (ITBCs) have been widely used in the bridges in the United States as they are aesthetically pleasing and offer a practical means to increase vertical clearance. Many of the ITBCs are skewed when two roads are not aligned perpendicularly and exceed the 45-degree angle of the construction requirements. The T ...
  • Effects of Surface Treatments on National Bridge Inventory Condition Ratings for Concrete Bridge Decks in Utah
    Effects of Surface Treatments on National Bridge Inventory Condition Ratings for Concrete Bridge Decks in Utah
    Guthrie, W Spencer ;
    De Leon, John T
    2020-11-01 | PDF
    The objectives of this research were to develop and analyze deterioration curves for bare concrete bridge decks and decks with specific treatments commonly used in Utah. The scope of this study was determined by the types and extent of electronically available data, including selected static inventory information; maintenance, rehabilitation, and r ...
  • Enhancing the Performance of Asphalt Mixtures Containing High RAP Content With the Use of Different WMA Technologies [supporting datasets]
    Sadek, Husam ;
    Hassan, Marwa
    2020-11-01 | ZIP
    The production of Warm-mix asphalt mixtures in conjunction with reclaimed asphalt pavement (RAP) has received considerable interest in recent years for economic and environmental reasons. The primary objective of this project is to enhance the performance of asphalt mixtures containing RAP in Region 6 using different WMA technologies. In this proje ...
    Dataset Supporting Files
  • Highways and Wealth Distribution A Geospatial Analysis
    Highways and Wealth Distribution: A Geospatial Analysis
    Cohen, Jeffrey P ;
    Lownes, Nicholas
    2020-11-01 | PDF
    The objectives of this report are to (1) evaluate how the implementation of Interstate 84 (I-84) in Hartford, Connecticut impacted real estate values over the 20-30 year period spanning from the planning stages through the opening of the highway; (2) demonstrate visually how this wealth creation for homeowners varied in the city of Hartford, Connec ...
  • Evaluate the Uses and Technology for TruckMounted Attenuators
    Evaluate the Uses and Technology for Truck-Mounted Attenuators
    Finley, Melisa D. ;
    Ruback, Leonard
    2020-11-01 | PDF
    Mobile maintenance operations on multi-lane highways, such as pothole patching and sweeping, present unique safety challenges due to the highly variable conditions encountered. While the Ohio Department of Transportation and Ohio Turnpike currently have procedures for temporary traffic control for mobile maintenance operations, both agencies wanted ...
  • Autonomous Emergency Navigation to a Safe Roadside Location
    Autonomous Emergency Navigation to a Safe Roadside Location
    Furukawa, Tomonari ;
    Zuo, Lei
    2020-11-01 | PDF
    In this project, we developed essential modules for achieving the proposed autonomous emergency navigation function for an automated vehicle. We investigated and designed sensing solutions for safe roadside location identification, as well as control solutions for autonomous navigation to the identified location. Sensing capabilities are achieved b ...
  • Engineered Geopolymer Composites (EGCs) for Sustainable Transportation Infrastructure [supporting datasets]
    Arce, Gabriel A ;
    Hassan, Marwa
    2020-11-01 | ZIP
    The objective of this study was to develop novel Engineered Geopolymer Composite (EGC) materials implementing locally available ingredients to produce practical and cost-effective EGCs for repair and new construction of transportation infrastructure in the region. To this end, geopolymers (GPs) were synthesized by alkali activation of metakaolin (M ...
    Dataset Supporting Files
  • Development of Corrosion Inhibiting Geopolymers Based Cement for Transportation Infrastructure
    Development of Corrosion Inhibiting Geopolymers Based Cement for Transportation Infrastructure
    Castaneda-Lopez, Homero ;
    Radovic, Miladin
    2020-11-01 | PDF
    Geopolymers are gaining attention as affordable, sustainable, and eco-friendly replacement for Ordinary Portland Cement (OPC) in concrete civil structures. More importantly, Geopolymer-based Cement (GPC) provide sustainable and environmentally friendly alternative to OPCs as GPC can be processed at room temperatures from aqueous solutions of waste ...
  • Investigating the Impacts of Truck Platooning on Transportation Infrastructure in the SouthCentral Region
    Investigating the Impacts of Truck Platooning on Transportation Infrastructure in the South-Central Region
    Hassan, Hany ;
    Dessouky, Samer
    2020-11-01 | PDF
    Truck platooning is an essential application of connected and autonomous vehicles, where several trucks are connected to each other forming a platoon. It is envisioned that truck platooning can assist in minimizing transportation challenges related to freight movements in the US by improving traffic operation, safety and reducing fuel consumption a ...
  • Corrosion Management System of Regional Reinforced Concrete RC Bridges
    Corrosion Management System of Regional Reinforced Concrete (RC) Bridges
    Castaneda, Homero ;
    Okeil, Ayman M.
    2020-11-01 | PDF
    Civil infrastructure assets, including buildings, transportation networks, energy grids and networks, and water-sewer systems, are critical functional components of day-to-day life activity in a modern society. The durability and reliability of these civil infrastructures are largely affected by corrosion-induced structural deterioration. In additi ...
  • Enhancing the Performance of Asphalt Mixtures Containing High RAP Content With the Use of Different WMA Technologies
    Enhancing the Performance of Asphalt Mixtures Containing High RAP Content With the Use of Different WMA Technologies
    Sadek, Husam ;
    Hassan, Marwa
    2020-11-01 | PDF
    The production of Warm-mix asphalt mixtures in conjunction with reclaimed asphalt pavement (RAP) has received considerable interest in recent years for economic and environmental reasons. The primary objective of this project is to enhance the performance of asphalt mixtures containing RAP in Region 6 using different WMA technologies. In this proje ...
  • The Development of a WebBased Small Airport Economic Impact Model
    The Development of a Web-Based Small Airport Economic Impact Model
    Borowiec, Jeffrey D. ;
    Glover, Brianne
    2020-11-01 | PDF
    Knowing the current economic impact of an airport is critical to both airport sponsors and the Texas Department of Transportation (TxDOT). While TxDOT periodically commissions a statewide economic impact study, the ability to provide updated or more precise economic impact values to airport sponsors and other stakeholders is needed. Having updated ...
  • Evaluation of Asphalt Mixtures Resistance To CementTreated Base CTB Reflective Cracking in the Laboratory
    Evaluation of Asphalt Mixtures’ Resistance To Cement-Treated Base (CTB) Reflective Cracking in the Laboratory
    Sadek, Husam ;
    Hassan, Marwa
    2020-11-01 | PDF
    The primary objective of this project is to propose a laboratory setup to test and evaluate an asphalt mixture layer on top of a simulated Cement-Treated Base (CTB) layer against reflective cracking. An in-depth literature review on the experimental studies that were conducted throughout the world to investigate the resistance of asphalt mixtures t ...
  • Truck Parking Needs in Tennessee
    Truck Parking Needs in Tennessee
    Golias, Mihalis ;
    Mishra, Sabya
    2020-11-01 | PDF
    The scope of this research project was to extend the work by Golias et al. (2017) and Cherry et al. (2017) and collect and process truck, network, and rest area data; develop, distribute and collect, synthesize and analyze a truck parking survey; develop extrapolation factors and estimate truck parking utilization and violations (i.e., truck parkin ...
  • Davis Amtrak Station Access Program A Pilot in a Pandemic Research Brief
    Davis Amtrak Station Access Program: A Pilot in a Pandemic [Research Brief]
    Pike, Susan
    ORCID ICON IMG
    2020-11-01 | PDF
    The Davis Amtrak station, a stop on the regional Capital Corridor (CC) line has the third highest passenger usage along the Capitol Corridor and up until early 2020, ridership was increasing. However, the station’s parking lot fills up before 6am on weekday mornings and this poses an access challenge to passengers. City of Davis Transportation staf ...
  • Corrosion Management System of Regional Reinforced Concrete (RC) Bridges [supporting datasets]
    Castaneda, Homero ;
    Okeil, Ayman M.
    2020-11-01 | ZIP
    Civil infrastructure assets, including buildings, transportation networks, energy grids and networks, and water-sewer systems, are critical functional components of day-to-day life activity in a modern society. The durability and reliability of these civil infrastructures are largely affected by corrosion-induced structural deterioration. In additi ...
    Dataset Supporting Files
  • A Guide to Understanding the Arizona Department of Transportation Pavement Management System
    A Guide to Understanding the Arizona Department of Transportation Pavement Management System
    Zavitski, Jeff ;
    Piane, Robert
    2020-11-01 | PDF
    This report documents the configuration, implementation, and use of the Arizona Department of Transportation (ADOT) Pavement Management System (PMS). The ADOT PMS is a commercial off-the-shelf, web-based application for managing infrastructure assets. The ADOT PMS complies with the federal reporting requirements for state departments of transportat ...
  • Evaluation of Bonded Concrete Overlays over Asphalt under Accelerated Loading
    Evaluation of Bonded Concrete Overlays over Asphalt under Accelerated Loading
    Mahdi, Moinul I ;
    Wu, Zhong
    2020-11-01 | PDF
    Bonded concrete overlay of asphalt (BCOA), previously known as ultra-thin whitetopping (UTW), has been widely used to repair aged asphalt concrete (AC) pavements with moderate distress in many states in the United States. Due to the increasing costs of roadway maintenance, Louisiana has a great interest in determining if the thin bonded concrete ov ...
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