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John Chrosniak

PROFILE

John Chrosniak

Over four months, this developer enhanced the usdot-fhwa-stol/carma-platform and carma-analytics-fotda repositories by delivering features focused on platform stability, accessibility, and geospatial data workflows. They migrated the CARMA platform from ROS 2 Foxy to Humble, refactored CI/CD pipelines using Docker and CMake, and standardized configuration naming to streamline upgrades. Their work included implementing GNSS-only localization with simplified configuration, improving 508 accessibility in visualization scripts, and developing map generation tooling for Lanelet2, OSM, and XODR formats. Using C++, Python, and shell scripting, they prioritized maintainability, cross-repository consistency, and robust data transformation to support CARMA Cloud integration.

Overall Statistics

Feature vs Bugs

100%Features

Repository Contributions

10Total
Bugs
0
Commits
10
Features
6
Lines of code
2,767
Activity Months4

Work History

May 2025

3 Commits • 2 Features

May 1, 2025

May 2025: Focused on accessibility improvements for visualization tooling and on engineering map generation workflows to support CARMA Cloud integration. The month delivered two key features: 1) CDA1Tenth visualization scripts enhanced for 508 accessibility and improved clarity of plot lines and labels, and 2) Map tooling enabling Lanelet2-based two-lane map creation and XODR map transformation with accurate geoReference handling for OSM/XODR formats. These workstreams collectively enable broader user access, streamlined data-to-decision pipelines, and smoother CARMA Cloud deployments. No high-priority bugs reported this month; the emphasis was on delivering robust features and reinforcing data workflows.

April 2025

1 Commits • 1 Features

Apr 1, 2025

April 2025: Delivered a simplified GNSS-based localization mode for the carma-platform by switching to GNSS-only with a fixed offset and consolidating localization configuration into a single parameter. This reduces localization complexity, improves predictability in GNSS-rich environments, and speeds deployment.

December 2024

3 Commits • 1 Features

Dec 1, 2024

December 2024: Delivered a major platform upgrade for CARMA by migrating from ROS 2 Foxy to Humble, stabilizing the CI/build pipeline, and standardizing configuration naming. This upgrade reduces future upgrade friction, improves runtime stability, and speeds up Docker-based CI cycles.

November 2024

3 Commits • 2 Features

Nov 1, 2024

November 2024 monthly summary focusing on business value and technical outcomes: Completed naming consistency and branding updates across two repositories, enabling stable demos and easier maintenance. Focused on CDA1tenth naming consistency (C1T → CDA1tenth) and TRB demo readiness, with careful refactors to preserve core functionality. The changes improved cross-repo alignment, reduced configuration drift, and streamlined future development and demonstrations.

Activity

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Quality Metrics

Correctness89.0%
Maintainability86.0%
Architecture86.0%
Performance84.0%
AI Usage20.0%

Skills & Technologies

Programming Languages

C++CMakeCMakeLists.txtDockerfilePythonSQLShellXMLYAML

Technical Skills

Accessibility ComplianceBuild SystemsC++C++ DevelopmentCI/CDCMakeCode MaintenanceCode RefactoringConfiguration ManagementCoordinate TransformationData TransformationData VisualizationDatabase ManagementDatabase SetupDocker

Repositories Contributed To

3 repos

Overview of all repositories you've contributed to across your timeline

usdot-fhwa-stol/carma-platform

Dec 2024 May 2025
3 Months active

Languages Used

C++CMakeCMakeLists.txtDockerfilePythonShellYAMLXML

Technical Skills

Build SystemsC++C++ DevelopmentCI/CDCMakeCode Refactoring

usdot-fhwa-stol/carma-analytics-fotda

Nov 2024 May 2025
2 Months active

Languages Used

Python

Technical Skills

Code MaintenanceRefactoringAccessibility ComplianceData VisualizationPython Scripting

usdot-fhwa-OPS/V2X-Hub

Nov 2024 Nov 2024
1 Month active

Languages Used

SQLYAML

Technical Skills

Configuration ManagementDatabase ManagementDatabase Setup