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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 4561 - 4580 of 36908 results
  • Engineered Geopolymer Composites (EGCs) for Sustainable Transportation Infrastructure [supporting datasets]
    Arce, Gabriel A ;
    Hassan, Marwa
    2020-11-01 | PDF
    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 | 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 ...
    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 ...
  • Application of Dynamic Crash Prediction Methodologies to FDOT Safety and Transportation System Management Operation TSMO Programs
    Application of Dynamic Crash Prediction Methodologies to FDOT Safety and Transportation System Management & Operation (TSM&O) Programs
    Wang, Zhenyu ;
    Lin, Pei-Sung
    2020-11-01 | PDF
    Dynamic crash prediction, a proactive safety management strategy, predicts crash risk based on prevailing traffic conditions and prevents crashes before occurrence. As an innovative technology, dynamic crash prediction provides a potential way for the Florida Department of Transportation (FDOT) to take advantage of information provided by intellige ...
  • Phase II Investigation of Recycled Tire Chips and Fiber Reinforcement for Use in GDOT Concrete Used To Construct Barrier Walls and Other Applications
    Phase II – Investigation of Recycled Tire Chips and Fiber Reinforcement for Use in GDOT Concrete Used To Construct Barrier Walls and Other Applications
    Durham, Stephan A. ;
    Chorzepa, Mi G
    2020-11-01 | PDF
    Concrete median barriers (CMBs) are installed to decrease the overall severity of traffic accidents by producing higher vehicle decelerations. In 2016, an update to the AASHTO Manual for Assessing Safety Hardware (MASH) saw a 58.00 percent increase in impact severity of test level 4 (TL-4) impact conditions when compared to the NCHRP Report 350 tes ...
  • Preventing Crashes in Mixed Traffic With Automated and HumanDriven Vehicles
    Preventing Crashes in Mixed Traffic With Automated and Human-Driven Vehicles
    Talebpour, Alireza ;
    Lord, Dominique
    2020-11-01 | PDF
    Reducing crash counts on saturated road networks is one of the most significant benefits of autonomous vehicle(AV) technology. To date, many researchers have studied how AVs maneuver in different traffic situations, but less attention has been paid to car-following scenarios between AVs and human drivers. Braking and accelerating decision mismatche ...
  • Evaluation of StreetLight Datas Traffic Count Estimates From Mobile Device Data
    Evaluation of StreetLight Data’s Traffic Count Estimates From Mobile Device Data
    Turner, Shawn ;
    Tsapakis, Ioannis
    2020-11-01 | PDF
    In this study, the Texas A&M Transportation Institute (TTI) conducted an independent, follow-up evaluation of StreetLight Data’s 2019 traffic count estimates using MnDOT sources of traffic count data. At 442 permanent benchmark locations, TTI found that average annual daily traffic ( AADT) estimation accuracy by StreetLight Data has improved signif ...
  • NonContact Scour Monitoring for Highway Bridges
    Non-Contact Scour Monitoring for Highway Bridges
    Nagarajan, Sudhagar ;
    Arockiasamy, Madasamy
    2020-11-01 | PDF
    The most common cause of bridge failures in the United States is from floods scouring bed material around bridge foundations. Bridge scour due to hydraulic forces accounts for 52% of bridge failures. Increasing occurrences of flood events and an increase in their magnitude will likely result in greater instances of scour damage to bridges. A signif ...
  • Analysis of Demographic Socioeconomic and Regional Difference in TDOT Customer Satisfactions Survey
    Analysis of Demographic, Socioeconomic, and Regional Difference in TDOT Customer Satisfactions Survey
    Ivey, Stephanie ;
    Milligan, Jake
    2020-11-01 | PDF
    The Tennessee Department of Transportation (TDOT) has conducted three statewide residential customer surveys (2006, 2013, 2016) to aid in identifying and assessing satisfaction with transportation services. This research focused on demographic analysis of the Tennessee Department of Transportation’s previous residential survey data with the goals o ...
  • Expedited Process for Developing Specifications on New Products
    Expedited Process for Developing Specifications on New Products
    CTC & Associates LLC
    2020-11-01 | PDF
    It is common practice for transportation agencies to assert a degree of authority over the products and materials that are used to perform work on public property in an effort to ensure the state’s standards for quality, performance, efficiency or other criteria are met. The process by which products achieve sanctioned use varies, with some states ...
  • Evaluation of Concrete Bridge Decks Comprising Twisted Steel Micro Rebar
    Evaluation of Concrete Bridge Decks Comprising Twisted Steel Micro Rebar
    Guthrie, W Spencer ;
    Hebdon, Aubrey L
    2020-11-01 | PDF
    The objective of this research was to investigate the effects of twisted steel micro rebar (TSMR) fibers on 1) the mechanical properties of concrete used in bridge deck construction and 2) the early cracking behavior of concrete bridge decks. This research involved the evaluation of four newly constructed bridge decks through a series of laboratory ...
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