Shared space is an urban design approach which seeks to minimize the segregation of pedestrians and vehicles. This is done by removing features such as curbs, road surface markings, traffic signs, and traffic lights. Variations of shared space are often used in urban settings, especially those that have been made nearly car-free.Shared space design can take many different forms depending on the level of demarcation and segregation between different transportation modes. It has been suggested that, by creating a greater sense of uncertainty and making it unclear who has priority, drivers will reduce their speed. This is conducive to a safer environment for both pedestrians and vehicles. Shared space schemes are often motivated by a desire to reduce the dominance of vehicles, vehicle speeds, and road casualty rates. Shared space is sometimes opposed by organizations representing the interests of blind, partially sighted and deaf people, who often express a preference for the clear separation of pedestrian and vehicular traffic. However, some research has shown that shared space design accommodates the disabled better than conventional highway design.