opentripplanner/OpenTripPlanner
Jan 2026 – Feb 2026
2 Months active
Languages Used
JavaGraphQLMarkdown
Technical Skills
API DesignAPI designCode MaintenanceDocumentationJavaRefactoring
Sigurd Totland
PROFILE
Sigurd Totland
Sigurd Totland contributed to the opentripplanner/OpenTripPlanner repository by developing core on-board access features and enhancing real-time trip data integration. He refactored routing logic to support boarding at specific stops, improved error handling for missing routes, and increased code clarity through architectural adjustments and documentation. Using Java and GraphQL, Sigurd integrated SIRI-based real-time data, exposing new API fields to improve trip accuracy. His work included test-driven development, performance optimization, and targeted bug fixes, such as resolving flaky tests and clarifying iteration logic. These efforts improved code maintainability, reliability, and the overall robustness of transit system routing and data processing.
Overall Statistics
Feature vs Bugs
75%Features
Repository Contributions
20Total
Bugs
2
Commits
20
Features
6
Lines of code
1,308
Activity Months2
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Work History
February 2026
9 Commits • 2 Features
Feb 1, 2026February 2026 monthly summary for opentripplanner/OpenTripPlanner: real-time data enhancements with SIRI integration and API exposure; code quality and documentation improvements; test stability fixes; and targeted refactors to improve maintainability and onboarding. Highlights deliver business value by improving accuracy of trip times, API reliability, and maintainability of the codebase.
9 Commits • 2 Features
Feb 1, 2026February 2026 monthly summary for opentripplanner/OpenTripPlanner: real-time data enhancements with SIRI integration and API exposure; code quality and documentation improvements; test stability fixes; and targeted refactors to improve maintainability and onboarding. Highlights deliver business value by improving accuracy of trip times, API reliability, and maintainability of the codebase.
February 2026
January 2026
11 Commits • 4 Features
Jan 1, 2026January 2026 (2026-01) monthly summary for opentripplanner/OpenTripPlanner focused on delivering core on-board capabilities, improving routing robustness, and elevating code quality to reduce operational risk and enable safer future iterations. Business value centered on faster boarding, more reliable itineraries, and clearer error handling.
January 2026
11 Commits • 4 Features
Jan 1, 2026January 2026 (2026-01) monthly summary for opentripplanner/OpenTripPlanner focused on delivering core on-board capabilities, improving routing robustness, and elevating code quality to reduce operational risk and enable safer future iterations. Business value centered on faster boarding, more reliable itineraries, and clearer error handling.
Activity
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Quality Metrics
Correctness97.0%
Maintainability93.0%
Architecture94.0%
Performance91.0%
AI Usage20.0%
Skills & Technologies
Programming Languages
GraphQLJavaMarkdown
Technical Skills
API DesignAPI DevelopmentAPI designBackend DevelopmentCode MaintenanceDocumentationGraphQLJavaPerformance OptimizationRefactoringSoftware DesignSoftware Developmentalgorithm designback end developmentbackend development
Repositories Contributed To
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