Physical barriers are easy to spot - doors that are closed, walls that are erected, and distance between people all work against the goal of effective communication. While most agree that people need their own personal areas in the workplace, setting up an office to remove physical barriers is the first step towards opening communication.
Many professionals who work in industries that thrive on collaborative communication, such as architecture, purposefully design their workspaces around an "open office" plan. This layout eschews cubicles in favor of desks grouped around a central meeting space. While each individual has their own dedicated work space, there are no visible barriers to prevent collaboration with their co-workers. This encourages greater openness and frequently creates closer working bonds.