when a tug runs into opposing traffic, it get's separated from its pullee. The opposing traffic then has to take a tick to realize it is stuck since it runs into the stationary pullee. On the following tick the tug may decide that the opposing traffic is in the way, and initiate a swap maneuver. We are then back to step one and the cycle repeats, potentially creating a serious traffic jam.
when a tug runs into opposing traffic, it get's separated from its pullee. The opposing traffic then has to take a tick to realize it is stuck since it runs into the stationary pullee. On the following tick the tug may decide that the opposing traffic is in the way, and initiate a swap maneuver. We are then back to step one and the cycle repeats, potentially creating a serious traffic jam.