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Research Search Results

Research

Update of the AASHTO Guide to Standardized Highway Barrier Hardware

  • 2014
  • AASHTO
  • Associate Engineer
  • CEO / GM / Commissioner
  • Director / Program Manager
  • Engineer
  • Freeway Management
  • Freeway Operations
  • ITS standards and specifications
  • Maintenance Staff
  • Maintenance and Operations
  • Manager / First Line Supervisor
  • Media / PIO
  • NCHRP
  • Operator
  • Principal Engineer
  • Public
  • Public Safety Officer
  • Research
  • Research
  • Research
  • Researcher/Academic
  • Roadside Maintenance
  • Senior Engineer
  • Senior Manager
  • Standards
  • Standards
  • Standards and Interoperability
  • Standards and Specifications
  • TRB
  • Technician
  • Transit Professional
  • Transportation Planner
    • |PDF
The objective of this research was to review and update the information contained within the following AASHTO-AGC-ARTBA Joint Committee, Task Force 13 (TF13) publication ‘A Guide to Standardized Highway Barrier Hardware’, 1995.
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Research

20-Year Vision and Strategic Plan for the Manual on Uniform Traffic Control Devices

  • 2014
  • Active Traffic Management/Travel Demand Management/Pricing
  • Arterial Traffic Control Device Operations
  • Associate Engineer
  • CEO / GM / Commissioner
  • Decision Criteria for ITS Device Type and Location
  • Decision Criteria for ITS Device Type and Location
  • Director / Program Manager
  • Engineer
  • Maintenance Staff
  • Manager / First Line Supervisor
  • Media / PIO
  • NCHRP
  • Operator
  • Principal Engineer
  • Public
  • Public Safety Officer
  • Research
  • Research
  • Research
  • Researcher/Academic
  • Senior Engineer
  • Senior Manager
  • Strategic Planning
  • TRB
  • Technician
  • Transit Professional
  • Transportation Planner
    • |PDF
The objective of this task was to develop a long-range vision (25-30 years from now) of what the MUTCD should be and develop a strategic plan or roadmap for how the MUTCD should be revised to be consistent with the vision. The MUTCD was first published in 1935. In 1970, the Federal Highway Admin
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Research

A Framework for Collecting Emergency Responder/Roadside Worker Struck-by/Near-Miss Data

  • 2013
  • AASHTO
  • CEO / GM / Commissioner
  • Data Acquisition, Support and Hosting
  • Director / Program Manager
  • Emergency Transportation Operations
  • Emergency Transportation Operations
  • Emergency Transportation Operations for Disasters
  • Emergency Transportation Operations for Disasters
  • Employee Health and Safety
  • Local government/MPO/RTPA cooperation
  • Manager / First Line Supervisor
  • Media / PIO
  • NCHRP
  • Operator
  • Planning Analysis Tools
  • Planning Analysis Tools
  • Public
  • Public Safety Officer
  • Public safety agency collaboration
  • Regional environmental data sets and models
  • Research
  • Research
  • Research
  • Researcher/Academic
  • Roadway Safety Services / Roadway Safety Patrol
  • Senior Manager
  • TRB
  • Traffic Incident Management
  • Traffic Incident Management
  • Traffic Incident Management
  • Traffic Incident Management
  • Traffic Incident Management
  • Transit Professional
    • |PDF
The objective of this task is to identify data inputs and assess and recommend data collection protocols as a first step in developing the struck-by/near-miss database for roadside workers and emergency responders
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Research

Updated Research for Collision Damage and Repair of Prestessed Concrete Beams

  • 2012
  • Associate Engineer
  • Director / Program Manager
  • Engineer
  • Equipment Management
  • Maintenance Staff
  • Maintenance and Operations
  • Maintenance and Operations
  • Manager / First Line Supervisor
  • NCHRP
  • Principal Engineer
  • Research
  • Research
  • Research
  • Researcher/Academic
  • Roadside Maintenance
  • Senior Engineer
  • Senior Manager
  • TRB
  • Traffic Incident Management
  • Traffic Incident Management
  • Traffic Incident Management
  • Traffic Incident Management
    • |PDF
Collision between over-height vehicles and bridges is an ever increasing problem nationwide. The bridge community is in need of current state of the art means and methods of evaluation and in-place repair of collision damaged precast/prestressed concrete beams. The NCHRP Report 280: Guidelines for E
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Research

Analysis of New Highway Lighting Technologies

  • 2013
  • Associate Engineer
  • Director / Program Manager
  • Engineer
  • Maintenance and Operations
  • Manager / First Line Supervisor
  • NCHRP
  • Principal Engineer
  • Public Safety Officer
  • Research
  • Research
  • Research
  • Researcher/Academic
  • Roadway Lighting
  • Senior Engineer
  • Senior Manager
  • TRB
  • Technician
  • Transportation Planner
    • |PDF
The objective of this research is to evaluate the potential and proper application of LED lighting technology and if applicable, other new roadway lighting technologies, to determine if and what additional research is required to properly establish guidance for these technologies. In the event the r
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Research

Directory of Significant Truck Size and Weight Research

  • 2011
  • Associate Engineer
  • Commercial vehicle size and weight
  • Engineer
  • Freight Data / Analysis
  • Freight Management
  • Freight Management Operations
  • Freight Technology and Operations
  • Manager / First Line Supervisor
  • NCHRP
  • Operator
  • Principal Engineer
  • Research
  • Research
  • Research
  • Researcher/Academic
  • Senior Engineer
  • TRB
    • |PDF
The body of research related to large truck size and weight is extensive, dating back nearly 80 years. In this context, the term “large truck” is generally understood to include single unit or combination vehicles in excess of 10,000 lbs, and in particular, vehicles in excess of 26,000 lbs. Early re
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Research

Multi-Level Linear Referencing System (MLLRS) Cost - Benefit Value Analysis Study

  • 2010
  • AASHTO
  • CEO / GM / Commissioner
  • Cost / Benefit Analysis
  • Director / Program Manager
  • Economic and Investment Analysis Tools
  • NCHRP
  • Planning Analysis Tools
  • Planning Analysis Tools
  • Planning Analysis Tools
  • Research
  • Research
  • Research
  • Researcher/Academic
  • Senior Engineer
  • Senior Manager
  • Simulation Analysis
  • TRB
    • |PDF
To develop a Value Analysis Study Report and supporting products to quantify linear referencing system implementation impact on cost savings, time savings, performance/cost value index, and return on investment. Tasks included the following: · Provide a Certified Value Specialist (CVS) tea
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Research

Measuring Cement Particle Size and Surface Area by Laser Diffraction

  • 2012
  • Associate Engineer
  • CEO / GM / Commissioner
  • Director / Program Manager
  • Engineer
  • Manager / First Line Supervisor
  • NCHRP
  • Operator
  • Principal Engineer
  • Project Systems Engineering
  • Research
  • Research
  • Research
  • Researcher/Academic
  • Senior Engineer
  • Senior Manager
  • System Architecture
  • System Architecture / Engineering
  • Systems engineering
  • TRB
  • Technician
  • Testing, Verification & Validation (V&V)
    • |PDF
The objectives of this research were to (1) evaluate the practicality and effectiveness of the laser diffraction method to measure the particle size distribution and total surface area of cement powder compared to current methods in use by the state DOTs and (2) prepare a test method to measure part
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Research

Challenges and Opportunities: A Strategic Plan for Equipment Management Research

  • 2011
  • AASHTO
  • CEO / GM / Commissioner
  • Director / Program Manager
  • Equipment Management
  • Maintenance and Operations
  • Manager / First Line Supervisor
  • NCHRP
  • Planning for Operations
  • Research
  • Research
  • Research
  • Researcher/Academic
  • Senior Manager
  • Strategic Planning
  • TRB
    • |PDF
The project identified the grand challenges that face the organizations that manage highway maintenance equipment and the research needed to address them . These challenges and research needs were identified based on input provided by professionals involved in the different aspects of equipment ma
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Research

Development of Guidelines for Rehabilitation of Existing highway and Rail Transit Tunnels

  • 2010
  • AASHTO
  • CEO / GM / Commissioner
  • Director / Program Manager
  • Freeway Management
  • Freeway Operations
  • Manager / First Line Supervisor
  • NCHRP
  • Research
  • Research
  • Research
  • TRB
  • Transit Operations
    • |PDF
Existing highway and rail transit tunnels are gradually becoming functionally obsolete and structurally deficient. These structures cause safety concerns. Older tunnels need frequent inspections, higher levels of maintenance, and rehabilitation. There is limited experience in the State Departments o
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