Amsterdam All in 1 Travel Ticket: one combined ticket for train, tram, metro and bus Amsterdam, July 23, 2008 - The Amsterdam public transport authority (called GVB) and the Dutch Railways organization (abbreviated NS), in cooperation with the Amsterdam Tourism & Conventions Board (ATCB) have joined forces to offer a combination ticket option for tourists, which should make getting to, from and around Amsterdam much more convenient.The "All-in-One Ticket" -- to be sold for a pilot period