LICENSE

MIT License

Copyright (c) 2024 John Xie

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.

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## Data Attribution

This project integrates with and builds upon several data sources:

### Singapore MRT Data
- **Primary Source**: MRTDown Data (https://github.com/foldaway/mrtdown-data) by @foldaway
- **License**: Please refer to the original repository for licensing terms
- **Usage**: Singapore MRT station information, line data, and service status
- **Attribution**: This project is built with immense gratitude to the MRTDown ecosystem

### New York Subway Data
- **Primary Source**: Metropolitan Transportation Authority (MTA) Open Data
- **License**: Public domain / MTA Open Data License
- **Usage**: Station locations, line information, and system structure

### Tokyo Metro Data
- **Primary Source**: Tokyo Metro Co., Ltd. and public transit data sources
- **License**: Used under fair use for educational and informational purposes
- **Usage**: Station names, line information, and geographic coordinates

### Technology Stack Licenses
All third-party libraries and frameworks used in this project are subject to their respective licenses:
- React (MIT License)
- TypeScript (Apache 2.0 License)
- Tailwind CSS (MIT License)
- And others as specified in package.json

## Disclaimer

This project is an independent visualization tool and is not officially affiliated with:
- Singapore's Land Transport Authority (LTA)
- New York's Metropolitan Transportation Authority (MTA)
- Tokyo Metro Co., Ltd.
- Any other transit authority

All transit system names, logos, and branding remain the property of their respective owners.