Delivering resources to save time, lives, and money

Research Search Results

Research

Freeway Operations; Regional Systems Management and Operations; Managed Lanes 2013

TRB’s Transportation Research Record: Journal of the Transportation Research Board, No. 2396 consists of 16 pages that explore collisions in freeway traffic; self-learning adaptive ramp metering; macroscopic travel time reliability diagrams for freeway networks; the impact of heavy vehicles on fr

Learn More
Research

Analysis, Modeling, and Simulation (AMS) Testbed Framework for Dynamic Mobility Applications and ATDM Programs

Both the Dynamic Mobility Applications (DMA) and Active Transportation and Demand Management (ATDM) Programs have similar overarching goals to improve surface transportation system efficiency and individual traveler mobility. However, each program has a unique research approach seeking to meet th

Learn More
Research

ATDM Foundational Research:Analysis, Modeling, and Simulation (AMS) Concept of Operations

As part of the Federal Highway Administration’s (FHWA) Active Transportation and Demand Management (ATDM) Foundational Research, this ATDM Analysis, Modeling and Simulation (AMS) Concept of Operations (CONOPS) provides the description of the ATDM Analysis Modeling and Simulation (AMS) system that

Learn More
Research

Evaluating the Performance of Corridors with Roundabouts

This study identifies 58 roundabout corridors in the United States as of 2011. There is diversity among these corridors in terms of length, roundabout spacing, number of lanes, surrounding land use, previous control (if not a new facility), and reasons for the selection of roundabouts.

Learn More
Research

Active Traffic Management for Arterials

This synthesis documents the state of the practice associated with designing, implementing, and operating ATM on arterials. Of particular interest to this study has been information on strategies used to actively manage traffic and congestion on arterials; situations and operating conditions in w

Learn More
Research

Guide to Contracting ITS Projects

This report provides guidance on the procurement of intelligent transportation systems (ITS), including variable message signs, traffic detectors, signal controllers, and a variety of other hardware and software that entails applications of advanced electronics and information management to regul

Learn More
Research

Integrating Business Processes to Improve Travel Time Reliability

The report is based on a series of case studies, mainly from the United States, that describe successful business processes. One case study on active traffic management from the United Kingdom is also presented. The case studies show how business processes were successfully reengineered in operat

Learn More
Research

Performance Measures for Traffic Signal Systems: An Outcome-Oriented Approach

Purdue University conducted research on traffic signal performance measures, and collected data relating to events like changes in detector and signal phase states. This is a report done detailing the data collection and management--how it was done and where the data was collected. A few of the f

Learn More
Research

Weather Delay Costs to Trucking

The purpose of this project was to estimate the impact of weather on U.S. roadway freight operations. It was already known that the freight sector of transportation could be greater than $600 billion of total gross domestic product, and 70 percent of that total value is moved by truck. Therefore,

Learn More
Case Studies & Lessons Learned

Crashes vs. Congestion -- What's the Cost to Society?

This report is an expansion on a study completed in 2008 which examined the costs of crashes to society. The results of that study are then compared with the costs of congestion on a per person basis. Overall, the cost of crashes per person is much higher than the cost of congestion per pers

Learn More