A "Platform Indicator" is a tool or feature used to show the status or availability of a specific platform, such as a digital service or transportation system. It helps users quickly understand whether the platform is operational, experiencing issues, or undergoing maintenance. This can be particularly useful in settings like public transportation or online services. In the context of software development, platform indicators can also refer to metrics that indicate the performance or health of a software platform. These indicators help developers monitor system functionality and user experience, ensuring that any problems are addressed promptly to maintain service quality.