Use 'in the short run' when talking about events expected soon, not far away in time. In the short run, we may see an increase in traffic due to the construction.
Pro Tip 2/3
Temporary Effects
'In the short run' often implies that effects or results will not last for a long time. In the short run, the new policy will cause some confusion.
Pro Tip 3/3
Business Context
Frequently used in business to discuss profits or outcomes that are expected sooner rather than later. We need to improve our customer service in the short run to boost sales.