Subsystem Verification (30 unique lessons found)

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.

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.

Invest in automated bicycle-pedestrian counters to both save time over doing manual counts and provide the ability to track continuous data over longer periods of time.
Experiences from a nationwide FHWA Bicycle-Pedestrian Count Technology Pilot Project, including identifying count locations, researching count technology, installing the technology, and uploading and analyzing the data.

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.

Avoid unnecessarily restrictive requirements and ambiguous terms in bid documents.
Experience implementing real-time travel time information systems on I-35 in Minnesota.

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.

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.

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.

Include significant planning and development time in the overall project schedule to accommodate identifying and addressing the various compatibility issues, to integrate existing legacy system equipment across multiple agencies.
Orlando, Florida's experience with a Field Operational Test (FOT) on using a single smart card for transportation payments at facilities operated by multiple regional agencies.

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.