Istanbul is amongst the first 20 cities in the world that were defined by UNESCO. 20% of the total population of Turkey lives in Istanbul. % 25 of all economic activities in Turkey take place in Istanbul. Due to these economic activities and the high population mobility in the city is very high. According to the 2011 Transportation Master Plan of Istanbul 20 million trips were conducted in the Istanbul that year. Accessibility of places and services is very important for urbanization and for participation in community life. Benefitting from social equity in a community in terms of accessibility is a human right. Thus the rights of disadvantaged groups must be taken into consideration when considering transportation.