All: Freeway Management

Displaying 402 result(s).

Coordination of Freeway Ramp Metering with Arterial Traffic Signal Control Reduced Total Travel Time and Delay by 5.8 and 11.5 Percent, Respectively, in a California Study.
Date Posted: 02/24/2022 | Source Date:
Assess and Quantify Performance of Ramp Metering Systems by Periodically Checking for Data Consistency in Reported Traffic Speeds, Flows, and Occupancies.
Date Posted: 02/24/2022 | Source Date:
Changing Variable Speed Limit Signs from White to Amber Legend Decreased Crashes by Approximately 50 Percent and Increased Driver Compliance by Nine Percent in Utah.
Date Posted: 02/24/2022 | Source Date:
Simulation Study Estimated Benefit-to-Cost Ratios up to 44.1 for Various Dynamic Bottleneck Mitigation Strategies.
Date Posted: 12/27/2021 | Source Date:
For Arterial Signals Surrounding Newly Installed Ramp Meters, Use Time-of-Day Plans That Are Checked As Needed Every Three to Six Months over the First 1.5 Years.
Date Posted: 10/29/2021 | Source Date:
Evaluation of Four Ramp Metering Signals in North Carolina Revealed Reductions in Delay, Travel Time, and Congestion, with an Estimated Monetized Net Benefit of $8 Million over Ten Years.
Date Posted: 10/29/2021 | Source Date:
Field Testing of Coordinated Ramp Metering on a California Highway Resulted in an Average of 7.25 Percent Increase in Ratio of Vehicle Miles Travelled to Vehicle Hours Travelled During the AM Peak Hours, Indicating Traffic Improvement.
Date Posted: 10/29/2021 | Source Date:
Signage such as “Keep Lane Assist On” is Recommended for All Levels of Vehicle Automation, Especially for Lower Levels of Automation.
Date Posted: 10/26/2021 | Source Date:
AV Microsimulation Findings Reveal an AV-Exclusive Lane May Increase Traffic Flow and Density by up to 14 Percent and 24 Percent, Respectively.
Date Posted: 10/26/2021 | Source Date:
Emphasize Sensor Placement and Message Board Visibility When Installing Queue Warning Systems to Ensure Driver Viewability.
Date Posted: 10/26/2021 | Source Date:
ITS Deployment Evaluation

INTELLIGENT TRANSPORTATION SYSTEMS JOINT PROGRAM OFFICE

1200 New Jersey Avenue, SE
Washington, DC 20590

1-800-853-1351

its.dot.gov

Focus Areas

Benefits

Costs

Deployment Statistics

Executive Briefings

Lessons Learned

ITS Taxonomy

Database Tutorial

Contact

Topics

Commercial Vehicle Operations

Data Management

Maintenance and Construction

Parking Management

Public Safety

Public Transportation

Support

Sustainable Travel

Traffic Management

Traveler Information

Vehicle Safety

Weather

 

U.S. Department of Transportation Office of the Assistant Secretary for Research and Technology (OST-R)
 
 
Web Policies and Notices | Accessibility | Careers | FOIA | Privacy Policy | Information Quality | No FEAR Act Data | Ethics
Civil Rights | Office of Inspector General | OIG Hotline | BusinessUSA | USA.gov | White House