upswing

noun

1. An upward swing.
2. (broadly)An upward trend or an increase in activity.

   “Newspapers reported an upswing in the company's sales last month.”

   “Terrorist bombing in the 1970s wrecked this area, […]. Now, more than 30 years on, Translink has been able to capitalise on the upswing in rail use to reconfigure the station as the North West Multimodal Transport Hub.”

verb

1. To swing upward.