Search by Benefits

Search by Costs

Search by Lessons

Displaying 1 - 10 of 8406

The Distance Between Consecutive Variable Speed Advisory (VSA) Signs Installed on State Highways Should Not Be Greater Than One-Half Mile.

The following were lessons learned from field testing. Implement VSA sign with radar detection to better estimate the mainline traffic and to evaluate driver compliance using traffic speed and…
10/22/2021
Taxonomy: Variable Speed Limits

Field Tests on State Route 78 in California Showed That Variable Speed Advisory (VSA) Signs Can Increase Average Travel Speeds by 8.71 Percent During Morning Peak Hours.

METHODOLOGY This study first tested the VSA algorithm in a microsimulation model to replicate the actual freeway environment and then implemented it in the field. A website for real-time traffic…
10/22/2021
Taxonomy: Variable Speed Limits

Four Different Adaptive Signal Control Software Solutions Used to Control 10 Intersections over 10 Years Ranged in Cost from $191,477 To $350,000.

This study collected and analyzed event-based vehicle detection data from years 2015-2016 and from multiple technologies, including inductive loop, magnetometers, radar sensors, and video, thermal,…
10/22/2021
Taxonomy: Adaptive Signal Control

Connected Vehicle Applications Focused on Signalized Intersection Safety Have Estimated Median Benefit-Cost Ratio of 3.38.

Return on Investment Analysis The benefits and costs of CV applications were calculated for the selected road segment and used in the stochastic ROI analysis. The benefits utilized estimated crash…
09/27/2021
Taxonomy: Adaptive Signal Control, Left Turn Assist, Transit Signal Priority

Utah DOT Deployed a Dedicated Short-Range Communications Corridor Supporting Transit Signal Priority Controls For a Total Cost of $575,900.

Utah DOT developed a project based on the initial 2016 deployment of a full Dedicated Short-Range Communications (DSRC) corridor that supported transit signal priority (TSP) controls to leverage…
09/26/2021
Taxonomy: Adaptive Signal Control, Transit Signal Priority

Utah DOT Assessment of Adaptive Traffic Signal Control in a Connected and Automated Vehicle (CAV) Environment Estimates A Benefit Cost Ratio of 14.24 at Just 25 Percent Market Penetration.

Methodology Related bus data from UDOT and Utah Transit Authority (UTA) for the deployment site was first collected to conduct the B/C analysis. Travel time savings served as the main metric used…
09/26/2021
Taxonomy: Adaptive Signal Control, Transit Signal Priority

The Estimated Cost To Upgrade New York City’s Fare Collection System Was $640 Million Dollars.

The Metropolitan Transportation Authority (MTA) in New York City is undertaking an ambitious project to upgrade its fare collection system called One Metro New York (OMNY). The OMNY system deploys…
09/16/2021
Taxonomy: Multi-use Payment, Transit Fare Payment

Contactless Payment System Along With Associated Contract Restructuring Found To Reduce Cost of Fare Collection From 15 Percent of Revenue to Nine Percent of Revenue.

Transport for London (TfL), that transit authority that runs the public transport system in London, United Kingdom was one of the first transit systems to launch a contactless payment system. TfL…
09/16/2021
Taxonomy: Transit Fare Payment

Adoption of Digital Contactless Fare Payment System Was Estimated To Reduce Fare Collection and Provisioning Costs by $4.4 Million.

Washington Metropolitan Transit Authority (WMATA) recently installed open-loop fare payment systems which integrate Apple and Google pay into the fare payment system. Overall, WMATA estimates that…
09/16/2021
Taxonomy: Multi-use Payment, Transit Fare Payment

Deploying More Road Weather Information System Sites Having Basic Capabilities Located Near Maintenance Section Boundaries Is More Beneficial than Fewer Sites with More Sensors.

Researchers used workshops, surveys, and interviews with Montana DOT personnel to conduct a RWIS needs assessment. Findings included a number of key lessons including: Maintenance personnel…
08/30/2021
Taxonomy: Surveillance, Monitoring, & Prediction
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

Taxonomy Description (PDF)

Database Tutorial

Contact

Topics

Arterial Management

Freeway Management

Roadway Operations & Maintenance

Crash Prevention & Safety

Road Weather Management

Transportation Management Center

Alternative Fuels

Traffic Incident Management

Transit Management

Emergency Management

Traveler Information

Driver Assistance

Information Management

Commercial Vehicle Operations

Intermodal Freight

Electronic Payments & Pricing

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