Currently alert periods don't appear on the calendar at all if they don't have an end date, but alerts like this are sometimes published and it would be helpful to know about them.
Would need to develop a unique visual style on the web calendar and appropriate unobtrusive equivalent in the iCal feed. Overlaps with #2 since these alerts can be open for quite a long time (e.g. the current alert about Red Line speed restrictions, which has been active for over 3 months and counting).
Currently alert periods don't appear on the calendar at all if they don't have an end date, but alerts like this are sometimes published and it would be helpful to know about them.
Would need to develop a unique visual style on the web calendar and appropriate unobtrusive equivalent in the iCal feed. Overlaps with #2 since these alerts can be open for quite a long time (e.g. the current alert about Red Line speed restrictions, which has been active for over 3 months and counting).