Unit / Device Testing (56 unique lessons found)

Current generation pedestrian crash avoidance systems may not be effective at night or during right-turns.
An independent evaluation of automatic emergency braking systems with pedestrian detection.

CV Pilot sites credit successful demonstration of cross-site V2V and V2I interactions to close coordination with the test site and utilization of itemized test-run schedule with clear pass/fail criteria.
CV Pilot sites participate in an Interoperability Test to demonstrate over-the-air V2V and V2I interactions between the different site’s onboard and roadside CV equipment, generating lessons learned for running future tests.

Cross-validate data streams and identify areas where automated processes can reduce workloads to efficiently and effectively manage traveler information.
The best-practices report from Caltrans identifies key strategies to handle and process data on a state-wide scale.

Local TMCs should "start small" with technology testing and focus on successful solutions for a focused deployment approach, says Road Commission for Oakland County.
RCOC, which administers the second-largest TMC in North America, attributes its success to its refined approach to testing new technologies.

Take a piecemeal approach to the integration of road weather prediction models, starting with the easily available sources of data and slowly building up capabilities of a modular system.
Integrated Model for Road Condition Prediction (IMRCP) prototype provides a framework for the integration of road condition monitoring and forecast data to support decisions by travelers, transportation operators, and maintenance providers.

Connected Vehicle Pilot Deployment Program yields program management best practices for integrating and testing large disparate systems.
Systems engineering best practices to reduce risks, minimize schedule delays, and avoid cost overruns.

The USDOT’s three Connected Vehicle Pilots successfully demonstrate cross-site over-the-air interoperability among six participating vendors.
Interoperability-related activities pave the way for roll-out of connected vehicle technologies, with devices and applications operating as designed across the nation.

Tune traffic density and speed parameters within connected vehicle (CV) applications to balance proper alerts versus false alarms in dense urban environments.
U.S. Department of Transportation Free Public Webinar Series on the Connected Vehicle Pilot Sites System Design Process.

Perform early real-world testing of connected vehicle technology with actual infrastructure in place to verify end-to-end system/application performance
U.S. Department of Transportation Free Public Webinar Series on the Connected Vehicle Pilot Sites System Design Process

In-vehicle work zone messages prove to be more effective than portable roadside dynamic message signs.
The University of Minnesota's Department of Mechanical Engineering tested several interfaces for relaying work zone messages to drivers including a roadside, portable changeable message sign, a smartphone presenting only auditory messages, and a smartphone presenting audio-visual messages.

Validate the performance of dedicated short-range communication (DSRC) radios for cooperative adaptive cruise control (CACC) applications by testing receiver signal strength, signal delay, and packet error rates.
USDOT developed an evaluation framework to validate the performance of vehicle-to-vehicle communications for cooperative adaptive cruise control (CACC) systems.

Clearly communicate requirements and testing procedures to connected vehicle device developers, and allow for industry input and iteration for less mature devices.
Experience from fostering the development of connected vehicle devices for the Safety Pilot Model Deployment in Ann Arbor, Michigan.

Conduct a data collection pilot test to validate end-to-end data acquisition, transfer, processing, and quality assessment processes.
Experience with data collection from connected vehicle devices during the Safety Pilot Model Deployment in Ann Arbor, Michigan.

Prototype FRATIS designs should be flexible and able to accommodate changes within stakeholder organizations and user feedback.
Prototype deployment and results in the execution of the Freight Advanced Traveler Information System Small-Scale Testing Program in Dallas-Fort Worth.

Design blind spot warning systems to minimize false alarms.
Promising technologies for commercial motor vehicles (CMVs) in North Carolina.

Verify data collection and equipment reliability when implementing mileage-based user fee programs that use smartphones.
Experience implementing a mileage-based user fee concept in Wright County, Minnesota.

Ensure machine vision cameras are aligned to properly detect the onset of a queue.
Experience with advanced queue detection systems in Minnesota.

Conduct bench testing prior to field installation of transit signal priority (TSP) equipment to verify functionality between detectors, signal controllers, phase selectors, and cabinet design.
Pilot deployment of transit signal priority in Chicago identified multiple considerations that may help inform future deployments.

Develop a long-term ITS vision and use systems engineering processes to successfully manage ITS deployments.
Chattanooga Area Regional Transportation Authority's experience in deploying transit ITS

Deploy side object detection systems for transit buses that have proven effectiveness in transit operating environments and been accepted by transit operators.
Experiences from the installation of Side Object Detection Systems on transit buses in Ohio, Utah and Washington, D.C.

Expect non-custom hardware and software to have technology limitations that may affect operational capabilities.
The Chicago, Illinois and Montgomery County, Maryland experience in procuring and developing advanced parking information system hardware and software.

Consider and evaluate user needs when designing communication infrastructure.
Experience from the smart parking field test at the Rockridge, Oakland BART station.

Thoroughly test, evaluate, and maintain animal detections systems.
Montana and Pennsylvania's experience with deploying animal detection systems.

Incorporate proven technologies and false alarm reduction strategies in the design of future Automotive Collision Avoidance Systems (ACAS).
Experience from a Field Operational Test (FOT) in Michigan to evaluate an Automotive Rear-End Collision Avoidance System.

Adhere to the proposed standard evaluation approach in order to facilitate high response rates and to collect reliable data on 511 implementation.
Experience from Implementing a Standard Evaluation Approach and Measures as Part of the Arizona 511 Model Deployment.

Expect to spend time and effort in testing and refining the voice recognition features of a 511 system.
An Arizona Department of Transportation experience in 511 implementation.

Optimize travel time messaging operations by improving the way in which data is collected, analyzed, and displayed.
Four American Cities' experiences with Travel Time Messaging on Dynamic Message Signs.

Treat system operators as the client and consider their perspectives during ATIS project development.
Washington's experience in deploying five Advanced Traveler Information System (ATIS) projects and developing a standardized approach for evaluating ATIS projects.

Provide drivers with sufficient managed lane information that can be easily disseminated and understood.
A guidance provided by the Texas Transportation Institute on providing user information in managed lanes facilities.

Develop early deployment and rapid prototyping strategies to improve the project development process.
Virginia DOT’s experience integrating data from public works and public safety agencies.

Investigate procurement alternatives of leasing, buying, or building equipment to minimize operations and maintenance costs.
Montana Department of Transportation's experience in procuring hardware and software for the statewide 511 traveler information system.

Develop a thorough installation and implementation process as part of the ITS deployment.
Five rural transit agencies' experiences in applying ITS to rural transit.

Recognize the data requirements of an Advanced Public Transportation System (APTS).
Experience from the Cape Cod Advanced Public Transit System.

Expect that new technology will require modifications before it is useable.
A Washington State experience with testing of electronic container door seals (E-seal) through a freight supply chain.

Use task order contracts to develop, deploy, and maintain traffic signal control systems.
An experience based on the synthesis of best practices nationwide.

Select appropriate technologies to enable emergency notification and response systems to complement traditional 9-1-1 service.
Colorado and Washington’s experience with emergency notification and response systems.