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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 4001 - 4020 of 36011 results
  • Is Seal Coating Counterproductive or Not
    Is Seal Coating Counterproductive or Not?
    You, Zhanping ;
    You, Lingyun
    2020-12-01 | PDF
    While seal coating has been widely used as a cost-effective strategy in asphalt pavement preservation by MnDOT and local agencies with great success, some cities and counties in Minnesota have reported their concerns about the premature stripping of street pavements that have been seal coated. The objective of this study was to diagnosis whether se ...
  • Assessing the Health Impacts of Transportation Projects a Synthesis
    Assessing the Health Impacts of Transportation Projects - a Synthesis
    Lee, Ming S ;
    Jin, Xia
    2020-12-01 | PDF
    To identify the best approach to applying Health Impact Assessment (HIA) for complete street projects in Florida, a comprehensive literature review and case studies were conducted. Existing HIA tools applied in the U.S. and elsewhere in the world were reviewed. It was found that the Integrated Transportation and Health Impacts Model tool (ITHIM) is ...
  • Economic Impact and Contribution of Arizona Highways Magazine to State Tourism
    Economic Impact and Contribution of Arizona Highways Magazine to State Tourism
    Andereck, Kathleen ;
    Vogt, Christine
    2020-12-01 | PDF
    To determine the influence that Arizona Highways Magazine (AHM) and its branded products have on tourism and the economy in Arizona, this study examined the influence of the AHM brand—the magazine, its related retail products, television program, and Facebook page—on tourism to and within Arizona; determined trip characteristics of Arizona traveler ...
  • Demand Response Transportation Planning and Visualization Tools
    Demand Response Transportation Planning and Visualization Tools
    Monast, Kai ;
    Murphy, Narmina
    2020-12-01 | PDF
    Demand Response Transportation (DRT) provide a necessary service to their community. One of the biggest issues facing DRTs is the continued decrease in funding, from Federal to State to the Local level. To continue to meet the needs of their community, DRTs must evolve their service offerings to become more efficient to meet the financial burdens. ...
  • Development of a SelfPowered WeighinMotion System
    Development of a Self-Powered Weigh-in-Motion System
    Papagiannakis, Athanassios T. ;
    Ahmed, Sara
    2020-12-01 | PDF
    This report describes the development of a novel weigh-in-motion (WIM) system that utilizes piezoelectric elements for sensing load and powering an ultra-low power microcontroller unit (MCU) that serves as its data acquisition system. A system of 4 piezoelectric (PZT) stacks serves as the energy harvester, while load sensing is done via a set of 4 ...
  • Evaluation of SSI and WSI Variables
    Evaluation of SSI and WSI Variables
    Sturges, Leigh ;
    Fay, Laura
    2020-12-01 | PDF
    The reliability of variables used in the calculation of storm severity indices or winter severity indices (SSIs/WSIs) was evaluated via an expansive literature review, an international survey, and two rounds of interviews with data and device managers. A Recommendations Guide was created to help agencies who want to improve upon or build anew an SS ...
  • Estimating Changes in Parking Capacity and Urban Form From Vehicle Automation
    Estimating Changes in Parking Capacity and Urban Form From Vehicle Automation
    Samaras, Constantine ;
    Mersky, Avi C.
    2020-12-01 | PDF
    This project developed a method to characterize the impact of privately-owned autonomous electric vehicles on electric vehicle charger placement, distribution, utilization, and power demand. Using Seattle, WA as a case study, a least total cost optimization for charging station owner and driver costs is conducted for vehicle automation levels 0-3, ...
  • Safety of the Urban Freight System Key Performance Indicators
    Safety of the Urban Freight System: Key Performance Indicators
    Lyons, Torrey ;
    McDonald, Noreen
    2020-12-01 | PDF
    Goods movement benefits the North Carolina economy by providing firms and consumers with needed materials. The freight sector has long monitored key performance indicators (KPIs) focused around delay and efficiency. This project focused on how monitoring of road safety KPIs could benefit goods movement in North Carolina. We recommend that North Car ...
  • Public Response to Different Planting Techniques for Annual Color and Enhancement
    Public Response to Different Planting Techniques for Annual Color and Enhancement
    Manoosingh, Celine ;
    Cubas, Francisco J
    2020-12-01 | PDF
    The objective of this study was to measure public perception of the different planting techniques (block and matrix), which are used at visitor information centers (VICs) and other rights of way (ROW) areas. The main factors that affect public perception of planting techniques were identified through an extensive literature review and qualitative s ...
  • Maritime Freight Data Collection Systems and Database To Support Performance Measures and Market Analyses
    Maritime Freight Data Collection Systems and Database To Support Performance Measures and Market Analyses
    Sriraj, P S ;
    Zou, Bo
    2020-12-01 | PDF
    The Illinois Marine Transportation System (IMTS) is a key component of the nation’s inland waterway system. IMTS is comprised of 27 locks and dams, 19 port districts, more than 350 active terminals, and 1,118 miles of navigable inland waterways traversing along the borderline or within the state of Illinois. However, the infrastructure of IMTS is a ...
  • VehicleTraffic Control with LimitedCapacity ConnectedAutomated Vehicles
    Vehicle-Traffic Control with Limited-Capacity Connected/Automated Vehicles
    Ban, Xuegang (Jeff) ;
    Guo, Qiangqiang
    2020-12-01 | PDF
    This project studies methods to control both vehicle and traffic under limited penetration of low-level connected and autonomous vehicles (LCAVs). The investigation includes three major parts: (1) the Eco-Driving algorithm for a single CAV with low-level automation; (2) the vehicle in the loop (VIL) simulation platform; and (3) the integrated vehic ...
  • Literature Search on Use of Flexible Pipes in Highway Engineering for DOTDs Needs
    Literature Search on Use of Flexible Pipes in Highway Engineering for DOTD’s Needs
    Jafari, Navid H ;
    Ulloa, H Omar
    2020-12-01 | PDF
    Drainage in Louisiana transportation projects are critical components in pavement infrastructure and are typically addressed using rigid concrete pipes. Plastic pipes include many various polymer-based materials, e.g., high-density polyethylene (HDPE), polyvinyl chloride (PVC), and polypropylene (PP). A long-term track record of rigid concrete pipe ...
  • Identifying and Tracking Emerging Transportation Trends and Indicators
    Identifying and Tracking Emerging Transportation Trends and Indicators
    Jin, Xia ;
    Alam, Md Rakibul
    2020-12-01 | PDF
    This report presents a study in understanding the impacts of external trends on transportation demand. Two major efforts were carried out in this project: (1) a nationwide survey was conducted to solicit opinions from transportation professionals to evaluate the impacts of various existing and emerging trends on transportation demand, and (2) geo-t ...
  • Resources Practices and Needs for Weather Forecasting to Facilitate Winter Road Maintenance Synthesis Report
    Resources, Practices and Needs for Weather Forecasting to Facilitate Winter Road Maintenance: Synthesis Report
    CTC & Associates LLC
    2020-12-01 | PDF
    A transportation agency’s ability to deliver effective winter road maintenance combines three essentials: a professional, knowledgeable staff, including trained snowplow operators; a fleet of high-quality, well-maintained equipment and appropriate supplies; and, perhaps most important and most difficult to consistently acquire, accurate and timely ...
  • Economic Impact Analysis of Georgias Rural and Small Urban Transit Systems Volume 2
    Economic Impact Analysis of Georgia’s Rural and Small Urban Transit Systems, Volume 2
    Garrow, Laurie A. ;
    Dhongde, Shatakshee
    2020-12-01 | PDF
    On March 30, 2017, the Georgia Legislature passed House Resolution 848 to create a Commission on Transit Governance and Funding. The Commission’s mission is to “study and assess the needs for and means of providing a system of mass transportation…in the state and [identify] potential methods of funding such systems” (HR 848). Currently, the State o ...
  • State and DOT Level Administration of Land Ownership Issues Across Navigable Waterways
    State and DOT Level Administration of Land Ownership Issues Across Navigable Waterways
    Johnston, Karen M ;
    Marshall, John T
    2020-12-01 | PDF
    This report examines current legal right of ownership issues arising in right-of-way land acquisition for highway projects crossing navigable waterways. The objective of this report is to help the state and GDOT be better positioned to deliver its program in a timely manner, simplify administrative understandings and efforts between agencies, reduc ...
  • Study of Gap Acceptance and Walking Speeds of Pedestrians Using Virtual Reality Simulation
    Study of Gap Acceptance and Walking Speeds of Pedestrians Using Virtual Reality Simulation
    Figueroa-Medina, Alberto M ;
    Valdes-Diaz, Didier M
    2020-12-01 | PDF
    The focus placed on pedestrian safety is based on the alarming increase in fatalities in the U.S. in recent years. The 6,283 pedestrian fatalities observed in 2018 was the largest number on record from the previous 28 years. The study of pedestrian behavior and the evaluation of new and innovative pedestrian safety countermeasures are needed to red ...
  • Transportation of Hazardous Materials Through EisenhowerEdwin C Johnson Memorial Tunnel Study Executive Summary Only
    Transportation of Hazardous Materials Through Eisenhower-Edwin C Johnson Memorial Tunnel – Study (Executive Summary Only)
    Dix, Arnold ;
    English, Gary
    2020-12-01 | PDF
    Senate Bill (SB) 19-032 required CDOT to conduct a study assessing the feasibility of allowing the transportation of hazardous materials through EJMT and to prepare a study report that includes the findings and recommendations as to whether and under what conditions the transportation of hazmat through the tunnel could be allowed.
  • Modernize Hydrologic Prediction Processes by Creating Custom Statewide SSURGO Green and Ampt Parameter Database Task 1 Hydrologic Methodology Assessment
    Modernize Hydrologic Prediction Processes by Creating Custom Statewide SSURGO Green and Ampt Parameter Database Task 1: Hydrologic Methodology Assessment
    JE Fuller Hydrology & Geomorphology, Inc.
    2020-12-01 | PDF
    This document is intended to function as an example of the use of soils data and methods required to implement the Green and Ampt methodology within the state of Nevada. An example hydrologic watershed model was supplied by Nevada Department of Transportation (NDOT). The hydrologic model used the Natural Resources Conservation Service (NRCS) curve ...
  • Long Distance Wireless Radio Frequency Link for the ITS Statewide Network
    Long Distance Wireless Radio Frequency Link for the ITS Statewide Network
    Kopp, Brian
    2020-12-01 | PDF
    This project began an investigation into whether it is possible to create a useful microwave communications link across the Gulf of Mexico in order to link the linear Florida Department of Transportation networks in the Florida Keys and Florida Panhandle, creating network redundancy for the first time for both segments. The work in this project has ...
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