Public Safety alerts are used when there is some emergency situation to bring awareness to the community of part of it. The alerts are geographically targeted so a street, or your neighborhood, or the whole Town can get an alert for something happening nearby. Accidents that close roads, or a response to a fire, or street flooding are the most common uses for these type of alerts.
You create an account for your address and sign up for notification via one or more methods; phone call, text, or email. You can choose to receive the alert in more than one way. Once the account is created, you can change the method, or add an alert to the notifications.
For example, the Health Dept now uses this service for a weekly alert on a health topic. I choose to receive these via email. The public safety alerts I choose to receive via text.
Note: signing up for these alerts is separate from signing up for the newsletter or meeting notifications. Email notifications for meeting agendas can be set up here -> https://www.franklinma.gov/subscribe