May 2025 monthly summary for usdot-fhwa-stol/connectedvcs-tools focused on delivering robust CVCS support by extending ASN.1 decoding and message validation, and integrating this functionality into the main development line. This work enhances data reliability for CVCS message processing and speeds downstream analytics through structured outputs.

April 2025 monthly summary for the usdot-fhwa-stol/connectedvcs-tools project. Focused on delivering end-to-end ASN.1 validation tooling, enhanced map integration, and JNI-backed decoding with CI/CD readiness. Key outcomes include: (1) Map Services Integration with Bing Maps and Google Maps APIs to support imagery metadata, elevations, place searches, and auto-completions, accompanied by the deprecation/removal of the legacy map services proxy to simplify architecture. (2) ASN.1 Validator Web App delivering project scaffolding, test coverage, decoding/validation components, and logging improvements to improve reliability and traceability. (3) ASN.1 Decoding/Validation Service (JNI integration) establishing a dedicated decoding/validation service with a JNI-wrapped decoder and CI/CD integration for the new module. (4) Security and quality improvements, including replacing printStackTrace with a Logger to address a security issue and cleaning up legacy/test code. (5) Infra/build reliability enhancements with Dockerfile/build.sh updates and log configuration to support consistent builds and monitoring. These delivered capabilities enable richer data tooling for users, safer ASN.1 processing, faster and more reliable deployments, and a cleaner, more maintainable codebase.

March 2025 performance summary: Delivered two high-impact outcomes across cdasim and connectedvcs-tools, focusing on test reliability, binary message processing, and code quality. Key actions include establishing a deterministic Town05 SUMO test environment by removing the background-traffic setup and updating the Town05 route, and implementing ASN.1 decoding in Java via a C wrapper with unit tests and SonarQube-aligned quality improvements, followed by fixing a compile error to ensure reliable message handling. These efforts reduce setup time, improve research reproducibility, and strengthen integration capabilities.

February 2025 monthly summary for usdot-fhwa-stol repositories (cdasim, carma-config). The month delivered substantial realism and configurability improvements for Town05 simulations, along with automated background traffic generation and improved integration with SUMO. The work emphasizes business value through more accurate testing scenarios and streamlined configuration management across the Town05 workflow.

January 2025 (2025-01): Focused on enhancing automation and usability of the background traffic generator in usdot-fhwa-stol/cdasim. Key feature delivered: Flexible Background Traffic Script with Command-Line Arguments for generate_background_traffic.sh, enabling automated execution and reproducibility. The script accepts CLI options for network file, output file, simulation duration, number of vehicles, and random seed; when not provided, it prompts interactively to preserve usability. No major bugs fixed this month.

Monthly summary for 2024-12 for repository usdot-fhwa-stol/cdasim: Delivered a Realistic background traffic feature for CARLA-SUMO co-simulation, including automation and tooling to support repeatable traffic scenarios. This work enhances simulation realism, test coverage, and pipeline reliability. Key contributions include creation of a co-simulation tools directory and a new script to generate background traffic, and updating the Carla Town5 SUMO route to integrate generated traffic. Emphasizes business value by improving scenario fidelity, reducing manual setup, and enabling configurable experiments.