According to the webpage http://milecards.com/6084/3-full-chip-pin-credit-cards-with-no-fees/ under the section "Chip cards with PIN and no foreign transaction fee" the BofA Travel card is:
No annual fee. Has a PIN available as a backup.
I read this as meaning it is signature priority but supports PIN so it could be used at an unattended machine such as in a train station.
Is there anyone out there who has this card and successfully used it in Europe at an unattended machine after entering a PIN?
This last part in bold is important to know if it is one of the 2 types of PIN card. Just because a card works in an unattending machine does not mean it supports PIN technology; the card and the machine do a little negotiation electronically and it is possible to configure both so that low value transactions are approved without any authentication (eg. PIN)
The unfortunate thing is even if the card is a PIN card it might not be the offline verification so the test above can't distinguish between them. There is a less secure variant of a PIN card that uses online verification and it is possible that an unattending machine would only support offline. On the other hand if someone has had the experience of using a machine and entering a PIN it must at least be one of the 2 PIN types.
And yes, I did call BofA to ask. The people manning the phones have no clue. I got some kid who slowly repeated the sentence I asked as if he could comprehend the question if he just said it slowly. Have fun yourself: call BofA and ask "Do you have any chip-and-PIN credit cards that support online PIN verification?"