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Research Search Results

Research

Deployment, Use, and Effect of Real-Time Traveler Information Systems

  • 2019
  • Associate Engineer
  • CEO / GM / Commissioner
  • Director / Program Manager
  • Engineer
  • Learning
  • Networking
  • Principal Engineer
  • Research
  • Research
  • Research
  • Researcher/Academic
  • SHRP2 Program
    • |PDF

This report presents the results of a study on the deployment, use, and effect of real-time traveler information (TI) systems. The main goals were to understand agency dissemination practices, assess the potential effectiveness of TI systems as it relates to traveler perception

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Research

Design Guidance for Channelized Right-Turn Lanes

  • 2011
  • Arterial Traffic Control Device Operations
  • Associate Engineer
  • Complete Streets / Context Sensitive Solutions
  • Corridor and Arterial Traffic Management
  • Engineer
  • NCHRP
  • Project Design
  • Research
  • Research
  • Research
  • Researcher/Academic
  • Roadway Geometric Design
  • Roadway Geometric Design
  • Senior Engineer

This report documents and presents the results of research to develop design guidance for channelized right-turn lanes. Observational field studies were conducted at 35 intersection approaches in cities to assess pedestrian crossing behavior, motorist yield behavior, and the interaction between p

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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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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

Disaster Response in Transportation Planning

  • 2005-2009
  • AASHTO
  • Business Processes/Policies and Procedures
  • Director / Program Manager
  • Emergency Planning
  • Leadership
  • Local government/MPO/RTPA cooperation
  • Planning for Operations
  • Public safety agency collaboration
  • Recovery
  • Research
  • Research
  • Research
  • Researcher/Academic
  • Resilience
  • Transportation Planner
    • |PDF
This report documents peer exchange discussions between State and MPO planning directors regarding priority issues in security, disaster response, and planning. This meeting was held as a part of NCHRP 8-36(69).
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Research

Disruption Impact Estimating Tool - Transportation (DIETT): A Tool for Prioritizing High-Value Transportation Choke Points

  • 2005-2009
  • Business Processes/Policies and Procedures
  • Emergency Planning
  • Emergency Transportation Operations
  • Emergency Transportation Operations for Disasters
  • Freeway Operations
  • NCHRP
  • Planning for Operations
  • Research
  • Research
  • Research
  • Researcher/Academic
  • Resilience
  • Traffic Incident Management
  • Traffic Incident Management
  • Traffic Incident Management
  • Traffic Incident Management
  • Transportation Management Centers
  • Transportation Management Centers (TMC / TOC)
  • Transportation Planner
    • |PDF
Assistance for planners to identify and prioritize potential high-value transportation choke points (TCPs) such as bridges, tunnels and passes. It provides an electronic analytical/predictive tool that calculates direct and economic impacts(costs) of an event that precludes the use of a TCP.
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Research

Dynamic, Integrated Model System: Sacramento-Area Application, Volume 1 and 2

  • Research
  • SHRP2 Program
    • |PDF

The goal of this research was to improve urban-scale modeling and network procedures to address operations or spot improvement that affects travel-time choice, route choice, mode choice, reliability, or emissions. Such improvements may include traveler information, expanded transit service, prici

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Research

Effectiveness of Different Approaches to Disseminating Traveler Information and Travel Time Reliability

  • 2014
  • Assessment (L1)
  • Available Tools
  • Communicating Reliability Information
  • Deployment (L3)
  • Development (L2)
  • Director / Program Manager
  • Engineer
  • Monitoring (L4)
  • Outreach & Marketing
  • Principal Engineer
  • Real Time Traveler Information
  • Research
  • Research
  • Research
  • SHRP2 Program
  • Senior Engineer
  • Transit Professional
  • Transportation Planner
  • Traveler Information
  • Traveler Information
  • Traveler Information
    • |PDF

The SHRP2 L14 project has three objectives: 1) quantify the potential for improvements in the communication of travel reliability information to affect traveler choices such that positive impacts on system performance occur, 2) develop a lexicon for communicating travel time re

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Research

Emergency Contracting: Flexibilities in Contracting Procedures During an Emergency

  • 2005-2009
  • Business Processes/Policies and Procedures
  • CEO / GM / Commissioner
  • Director / Program Manager
  • Emergency Planning
  • Emergency Transportation Operations
  • Emergency Transportation Operations for Disasters
  • Engineer
  • Local government/MPO/RTPA cooperation
  • NCHRP
  • Procurement Approaches
  • Public safety agency collaboration
  • Recovery
  • Research
  • Research
  • Research
  • Researcher/Academic
  • Road Weather Management
  • Road Weather Management
  • Tools for Small Agencies
  • Traffic Incident Management
  • Traffic Incident Management
  • Transit Professional
  • Transportation Planner
    • |PDF
This paper addresses issues surrounding post-disaster contracting procedures including limitations imposed by grant agreements. It discusses federal procurement flexibility in a recovery context.
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Research

Emergency Exit Signs and Marking Systems for Highway Tunnels

  • 2015
  • Business Processes/Policies and Procedures
  • Emergency Planning
  • Emergency Transportation Operations
  • Emergency Transportation Operations for Disasters
  • Engineer
  • Infrastructure Protection
  • NCHRP
  • Research
  • Research
  • Research
  • Researcher/Academic
  • Standards and Specifications
  • Traffic Incident Management
  • Traffic Incident Management
  • Traffic Incident Management
  • Traffic Incident Management
  • Transportation Management Centers
  • Transportation Management Centers (TMC / TOC)
    • |PDF
A guide for emergency exit signs and marking systems (i.e., visual and audible) for highway tunnels, incorporating the most current technology and results of recent studies of human response in emergency evacuation.
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