LISTEN ¦ Why does traffic come to a stand still in Belfast and across NI on such a regular basis? @niroads chats to Frank

In realtion to Ronnie's query, a Translink spokesperson said:

“From time to time when there is heavy traffic congestion it is necessary to regulate services that are operating late and are running together.

“This is to reposition buses so that we can ensure minimum disruption to our customers.

“When this happens, the vehicle will show ‘not in service’ on the destination.”