Obstruction is a research area that focuses on understanding and analyzing obstacles or barriers that impede the achievement of certain goals or outcomes. This can include physical obstructions such as blockages in a pipe or road, as well as metaphorical obstructions such as barriers to communication or progress in a project. Researchers in this area may study the causes of obstructions, strategies for overcoming them, and the impacts of obstructions on various systems or processes. Overall, the goal of obstruction research is to improve efficiency, effectiveness, and problem-solving in the face of obstacles.