Publications Search Results

This amplified work plan summarizes the approach of the Midwest Research Institute team to accomplish the expanded scope; which addressed non recurrent congestion caused by snow and ice and other weather related events, in SHRP2 Project L07: "Evaluation of Cost-Effectiveness of Highway Design Fea

This presentation, titled "Analytic Procedures for Determining the Impacts of Reliability Mitigation Strategies" was part of the SHRP2 Tuesdays Webinar Series. It covers Project L03/L33 and Project L07, which deal with the analytical relationships between reliability, non-recurring congestion, an

A presentation describing the key products of Project L07 and how they can be used to evaluate the potential effectiveness of various design treatments to improve travel time reliability.

The purpose of this guide is to provide traffic engineers, highway designers, transportation planners, and decision makers with a catalog of highway design treatments that can be used to reduce nonrecurrent congestion and improve the reliability of urban and rural freeways. Nonrecurrent congestio

The Reliability area of the second Strategic Highway Research Program (SHRP 2) has focused on the need to improve travel time reliability on freeways and major arterials. SHRP 2 Project L07, Identification and Evaluation of the Cost-Effectiveness of Highway Design Features to Reduce Nonrecurrent

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The software and documentation produced during Project L08 are currently being updated as part of NCHRP 3-115. Updated products will be available in early 2016 at hcm2010.org. After the 2016 release of upd

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The software and documentation produced during Project L08 are currently being updated as part of NCHRP 3-115. Updated products will be available in early 2016 at hcm2010.org. After the 2016 release of upd

This document contains a list of points made by participants at webinars, meetings with the HCQSC, the L08 TETG, and other key stakeholders.

Highway Capacity Manual Chapter 36 March 12, 2013 Example Problem 1: Reliability Evaluation of an Existing Freeway Facility Example Problem 2: Geometric Treatment for Facility in Example Problem 1 Example Problem 3: Incident Management Treatment for Facility in Example Problem 1 Example Problem 4

This brochure-like factsheet introduces the topic of "Predicting the Unpredictable: Better Travel-Time Reliability for Busy Roads" to practitioners. It highlights new tools help identify the best ways to improve travel-time reliability by addressing the causes of delay.

A webinar update on the findings of project L08.

This presentation contains a demonstration of the FREEVAL-RL tool. It was presented at the L38 workshop in Washington, D.C. in March 21, 2013.

This file contains the presentation done by Kittelson & Associates, ITRE, and Cambridge Systematics at the Washington, D.C. SHRP-2 L38 workshop in March 20, 2013.

A presentation on project L08 processes and findings.

This document is intended to provide guidance on using the FREEVAL-RL computational engine, which implements the Freeway Reliability Analysis methodology developed in SHRP 2 Project L08. FREEVAL-RL is a Microsoft Excel–based computational engine coded in the Visual Basic for Applications (VBA) pl

Travel time reliability reflects the distribution of travel time of trips using a facility over an extended period of time. This distribution arises from the interaction of a number of factors that influence travel times:

This final report documents the activities performed during SHRP 2 Reliability Project L08: Incorporating Travel Time Reliability into the Highway Capacity Manual. It serves as a supplement to the proposed chapters for incorporating travel time reliability into the Highway Capacity Manual prepare

SHRP2 Project L08 is developing methods and guidance on incorporating travel time reliability into Highway Capacity Manual (HCM) analyses. The main product of this project will be a guidebook that describes travel time reliability concepts for an HCM audience, provides step-by-step processes for

This Amplified Work Plan provides an overview of the approach to the research and documentation to fulfill the specifications for the SHRP2 L10: "Feasibility of Using In_Vehicle Video Data to Explore How to Modify Driver Behavior that Causes Non-Recurring Congestion."

This is a summary of findings from Project L10: "Feasibility of Using In-Vehicle Video Data to Explore How to Modify Driver Behavior that Causes Non-Recurring Congestion."

Nonrecurring congestion is traffic congestion due to nonrecurring causes, such as crashes, disabled vehicles, work zones, adverse weather events, and planned special events. According to data from the Federal Highway Administration (FHWA), approximately half of all congestion is caused by tempora

This one page document, "Planning Cost-Effective Actions to Improve Travel-Time Reliability", briefly summarizes the requirements, actions, and performance-based planning options to improve non-recurring congestion.

Poster explaining graphically and concisely the project.

This project brief, titled "Travel Time Reliability 2030: Innovations and Strategies for Today and Tomorrow" provides an overview of two SHRP2 reliability projects: Project L11 (Evaluating Alternative Operations Strategies to Improve Travel Time Reliability) and Project L15B (Proximity Informatio

This project recognizes the imperative to maximize the value and capabilities of our existing transportation infrastructure, and to do so in the context of a collaborative decision-making process that allows agencies and jurisdictions to make prudent decisions for investing scarce resources.