What are short term physical barriers?

Short-term physical barriers refer to temporary obstacles that impede movement or access, often used in contexts like construction, events, or public safety. Examples include fences, barricades, or temporary walls that are set up to control crowds, protect construction sites, or isolate hazardous areas. These barriers are typically designed for quick installation and removal, addressing immediate needs without long-term implications. Their purpose is to ensure safety and manage the flow of people or vehicles in specific situations.