الصفحة التي طلبتها غير متوفرة بلغتك حاليًا. يمكنك اختيار لغة مختلفة في أسفل الصفحة أو ترجمة أي صفحة ويب على الفور إلى لغة من اختيارك، وذلك باستخدام ميزة الترجمة المضمّنة في Google Chrome.

Alerts overview

The Alert mechanism is highly versatile and provides contextual information to transit users for events that happen in the network. In particular, it informs users of the following:

  • Cancellation of routes, network, stops, and trips using NO_SERVICE in effect field
  • Transit announcements and notices with no effect on routing. For example:
    • On-the-fly addition or reduction of trips
    • Detours
    • Stop closures or movements

For more information, reference the GTFS documentation

Related resources

Recommended guidelines for providing an Alert:

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