Since the industrial revolution, technological developments and increased population have caused environmental damages. Accordingly, appearance of the term of Global Warming makes the humanity to revise their facilities in all fields. Sustainability occurred to protect the nature and architectural environment. This term has been proposed not to be a new term but a response to environmental disturbances caused by human activities and it is re-conceptualization of architecture. It contains the imbalance between environmental problems which is natural environment and consumption that occurred all around the world. An important part of sustainability debate focused on urban planning and design for more sustainable forms and patterns. In particular it is discussed that planning and design of urban areas have a major effect on transport and therefore can help reduce car usage, emissions, global warming and climate change. There are many criteria and strategies to prevent car dependency and encourage people to use public transportation and walking. To achieve sustainable transport, there should be design for walkable and easy accessible areas.