This went up on the site of the local public transport authority a couple of days ago.

From its inception, the MBTA′s Customer Bill of Rights has always stated that any customer whose trip is delayed by more than 30 minutes is eligible for a complimentary fare. The MBTA, which is pleased to be one of the few transit systems that make such a pledge, will continue to honor this commitment to its customers. The MBTA, however, can no longer afford to provide a complimentary round-trip fare in instances in which no more than a one-way trip was delayed. By adhering to the On-Time Guarantee program′s original intent, the MBTA is able to maintain this important customer service initiative while remaining focused on providing safe and reliable public transportation.

Translated out of the sugar coating of the marketing speak, this means that they've halved the refund they give you if your journey was delayed by half an hour - it would appear that I've used up their entire budget. Sorry, everyone.

It's surely a sign that there's a problem if you have to revoke your confidence that your service works well enough not to have to refund people for using it. I would have thought that a more satisfactory solution would have been to make the network run a bit better, in keeping with the whole "On-Time Guarantee" bit.