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Recent Additions
This page includes the documents that were newly added to the repository within the last 30 days.
201 - 220 of 409 results
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  • Green Generates Green
    Published Date:
    2018-12-01
    Abstract:
    This project reflects a collaboration between Tennessee Department of Transportation (TDOT) and project team members from the University of Tennessee aiming to understand and improve Tennessee’s transportation system sustainability and design a pla...
    File Type:
    Filetype[PDF - 3.05 MB]
    Added:
    04/05/2021
  • Work Zone Crash Performance Data Measurement
    Published Date:
    2018-03-01
    Abstract:
    The objective of this research was to utilize historical and archived crash data, maintained by TDOT, to closely analyze crash patterns in work zones, while considering crash, roadway geometry, environmental and several other characteristics and deve...
    File Type:
    Filetype[PDF - 10.85 MB]
    Added:
    04/05/2021
  • Tennessee SmartPark Pilot
    Published Date:
    2018-04-01
    Abstract:
    The technology that SmartPark project uses includes overhead laser scanners, side-mounted laser scanners, and light curtains (CURs). The laser scanners and CURs are able to produce two-dimensional vehicle profiles, showing height (or width) and lengt...
    File Type:
    Filetype[PDF - 2.86 MB]
    Added:
    04/05/2021
  • Truck Parking Facilities and Ramp Parking: Role of Supply, Demand, and Ramp Characteristics
    Published Date:
    2016-01-01
    Abstract:
    Faced with increasing commercial vehicle (CMV) traffic and static revenue, public agencies cannot contend with providing adequate public parking for CMVs leading to overcapacity facilities and resulting in ramp parking. This study analyzes Tennesseeâ...
    File Type:
    Filetype[PDF - 2.59 MB]
    Added:
    04/05/2021
  • High Occupancy Vehicle (HOV) Detection System Testing
    Published Date:
    2018-03-01
    Abstract:
    This study supports TDOT’s evaluation of existing HOV lanes as travel-time incentives for promoting carpooling and reducing congestion. While the overall person-moving capacity of the HOV lanes may be slightly higher than the general-purpose lanes,...
    File Type:
    Filetype[PDF - 1.48 MB]
    Added:
    04/05/2021
  • Evaluating Recycling Efficiency of Asphalt Plants
    Published Date:
    2019-08-01
    Abstract:
    This study aims to determine recycling efficiency of mixtures containing recycled asphalt pavement (RAP) and recycled asphalt shingle (RAS) from different asphalt plants and to investigate the influence of mixture design and production conditions on ...
    File Type:
    Filetype[PDF - 4.48 MB]
    Added:
    04/05/2021
  • Asphalt Mixture Design and Performance Properties by Using a Gyratory Compactor
    Published Date:
    2020-02-01
    Abstract:
    TDOT is currently using the Marshall mix design method for designing asphalt mixtures. However, the Marshall method does not allow for designing larger stone mixes and it hinders the technical information exchange and communication among DOTs. To com...
    File Type:
    Filetype[PDF - 6.74 MB]
    Added:
    04/05/2021
  • The Traffic Monitoring Program Research Project: Comparison of TDOT Practices With Selected States
    Published Date:
    2017-10-01
    Abstract:
    This report presents the findings of research on traffic monitoring programs undertaken for TDOT’s Long Range Planning Division by Tennessee Technological University’s Civil and Environmental Engineering Department. The primary purpose of the res...
    File Type:
    Filetype[PDF - 2.83 MB]
    Added:
    04/05/2021
  • Innovative Strategies for Public Involvement
    Published Date:
    2014-12-01
    Abstract:
    This research was designed to review current practice, identify strategies to achieve more balanced public involvement, develop a community profile tool identifying key stakeholder organizations for TDOT regions (Knoxville, Region 1; Chattanooga, Reg...
    File Type:
    Filetype[PDF - 2.12 MB]
    Added:
    04/05/2021
  • A Guidebook for Best Practices on Integrated Land Use and Travel Demand Modeling
    Published Date:
    2014-12-01
    Abstract:
    The significant increase of automobile use had a major negative impact on the efficiency of transportation systems. This in turn increased the need for more research in transportation planning and travel demand modeling. The development of the first ...
    File Type:
    Filetype[PDF - 5.54 MB]
    Added:
    04/05/2021
  • Evaluation of Intelligent Compaction in Asphalt Pavement Construction in Tennessee
    Published Date:
    2017-02-27
    Abstract:
    This study aims to evaluate the applicability of intelligent compaction (IC) in construction of soil subgrade, granular bases and/or subbases, and asphalt layers in flexible pavements in Tennessee. In the research project, a total of six asphalt mixt...
    File Type:
    Filetype[PDF - 4.03 MB]
    Added:
    04/05/2021
  • Determining Concrete Chloride Permeability Rapidly and Effectively
    Published Date:
    2018-07-03
    Abstract:
    A study was conducted to determine if chloride permeability could be determined more quickly and efficiently. Two mixtures were selected by the Tennessee Department of Transportation (TDOT) Materials and Tests (M&T) Division: a TDOT Class D mixture w...
    File Type:
    Filetype[PDF - 1.72 MB]
    Added:
    04/05/2021
  • Development of TDOT Class P-SCC (Self-Consolidating Concrete) and Class A-SCC Concrete Mixtures
    Published Date:
    2016-01-01
    Abstract:
    Self-consolidating concrete, also known as self-compacting concrete (SCC), is a highly flowable concrete that spreads into place and fills formwork without the need for mechanical vibration. SCC reduces the time and labor costs needed for concrete pl...
    File Type:
    Filetype[PDF - 3.57 MB]
    Added:
    04/05/2021
  • Performance Evaluation of Grout Materials for Connecting Precast Concrete Bridge Deck Panels
    Published Date:
    2017-01-04
    Abstract:
    The use of full-depth precast concrete panels for rehabilitation of bridge decks allows fast installation and all-weather construction. The panel joints that are connected later with grout materials may degrade prematurely, leading to a less desirabl...
    File Type:
    Filetype[PDF - 18.09 MB]
    Added:
    04/05/2021
  • Evaluation and Prediction of Bridge Pier and Contraction Scour of Cohesive River Sediments in Tennessee
    Published Date:
    2018-09-30
    Abstract:
    Approximately 450 scour critical bridges are maintained by Tennessee Department of Transportation (TDOT)across the state. Many of these bridges are located in river or stream beds and banks where cohesive soils are prevalent, particularly in western ...
    File Type:
    Filetype[PDF - 5.47 MB]
    Added:
    04/05/2021
  • Implementation and Improvement of Pavement & Asset Management Systems in Tennessee
    Published Date:
    2016-10-01
    Abstract:
    This project aims to assist in implementation of PMS including data collection, condition report and strategy analysis and help developing the asset management plan for the state. The research team accomplished several proposed tasks including: defin...
    File Type:
    Filetype[PDF - 3.44 MB]
    Added:
    04/05/2021
  • Evaluation of Geosynthetics Reinforcement in Flexible Pavement Structures Using Accelerated Pavement Testing
    Published Date:
    2018-10-01
    Abstract:
    This project investigated the reinforcement performance of different types of geosynthetics placed at two locations of the aggregate base through a series of well-controlled accelerated pavement testing. To attain the target of accelerating the tests...
    File Type:
    Filetype[PDF - 6.32 MB]
    Added:
    04/05/2021
  • Retrace Pavement Marking Retroreflectivity Levels on Tennessee Highways
    Published Date:
    2015-11-01
    Abstract:
    This study evaluated the performance of pavement markings in the State of Tennessee and established pavement marking replacement (maintenance) timing for two types of pavement markings used in Tennessee: paints and thermoplastics. Pavement markings p...
    File Type:
    Filetype[PDF - 2.59 MB]
    Added:
    04/05/2021
  • Guidance for Site Selection, Safety Effectiveness Evaluation, and Crash Modification Factors of Median Cable Barriers in Tennessee
    Published Date:
    2017-10-01
    Abstract:
    This project evaluated the median cable barrier safety effectiveness as experienced on Tennessee highways. Apart from descriptive statistics and questionnaire survey, before and after statistical evaluation was used to estimate the cable barriers Saf...
    File Type:
    Filetype[PDF - 2.40 MB]
    Added:
    04/05/2021
  • All Hazards Risk Assessment of Critical Transportation Infrastructure in the State of Tennessee: Part 1 Identification of the Top Ten Critical Transportation Assets
    Published Date:
    2015-01-01
    Abstract:
    Threats, both natural and man-made, exist to critical infrastructure of all types throughout the nation. Currently operating terrorist groups have indicated their intention to attack critical transportation infrastructure in the future. The possibili...
    File Type:
    Filetype[PDF - 5.37 MB]
    Added:
    04/05/2021
201 - 220 of 409 results
20 50 results
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