Southbound (adjective)

1. Moving or facing in a direction towards the south.
2. Located in the south or heading towards the south.

Origin:

Mid 19th century: formed from south + bound.

Examples:

1. The southbound train was packed with commuters.
2. The southbound lane was closed for construction.
3. The southbound car was driving too fast for the conditions.
4. The southbound flight was delayed due to weather.
5. The southbound road was covered in snow and ice.