Angioedema-swelling of tissue beneath the surface of the skin-can be mistaken for or associated with hives. It can be caused by allergic reactions, medications or a hereditary deficiency of some enzymes. The following symptoms may indicate angioedema: 1  Swelling in the eyes or mouth. 2  Swelling of the hands, feet or throat. 3  Difficulty breathing, stomach cramps or chemosis (swelling of the lining of the eyes).
Turbo roundabout is a design developed by Bertus Fortuijn. Its design, when combined with appropriate signage, dramatically improves safety and traffic flow, and is surprisingly easy for the unfamiliar driver to navigate.
Movement within a roundabout in a country where traffic drives on the right. Note the anticlockwise circulation. A roundabout is a type of circular intersection or junction in which road traffic flows almost continuously in one direction around a central island. So-called modern roundabouts require entering traffic to give way to traffic already in the circle and optimally observe various design rules to increase safety.