Append to the list of trails in rule 2.9 Trails the following text:

BLOCK. If a player has a trail that contains the word BLOCK, they may make a story with a title starting with “Blocked Station:” and the name of only one staion. no player may place their piece on that station for DICE3-1 (three minus one) days. If the result is 1 or 0, it shall only be blocked on the day of the posting. The posting player must also post in the [[Check before you travel]] wiki page in the Blocked section on what day the station will no longer be blocked. The day the station is unblocked is calendar days, not hours (so if you block it for two days on a Saturday, it will not be blocked as soon as it is the next Monday.)

Add a section to the Check before you travel wiki named Blocked stations.