The integration of technology and the city is seen as a possible solution to the problem of urbanization. In many smart city solutions, self-driving cars are the most popular. It is also known as driverless car technology and it may reshape our city. A recent prediction is that by 2040, these autobots will account for half of all road trips. More and more research is exploring the traffic order caused by driverless cars - "the impact of trips (also known as travel generation)." However, we have done less research on the impact of urban landscape and urban development patterns. Every change in transportation technology has had a huge impact on our city, from carriages to coal cars, to cars, to trains. So what will the changes caused by driverless cars look like? What are their rebound effects on liquidity? Free up road space for other uses In developed countries, road networks account for an average of 30% of urban land area. Theoretically speaking, if the “trip occurrence†(generation of trips) and population growth remain unchanged, driverless cars can make more efficient use of the road network, thereby saving some road space to some extent. These spaces can be redesigned for new social functions, street trees, sidewalks or bicycle lanes. However, these vehicles are likely to release the previously suppressed journey. The resulting increase in traffic flow will reduce the potential for vacating road space for other uses. Change the parking lot to other social uses Self-driving cars will reduce and possibly eliminate the need to leave a lot of space for parking in urban areas where demand for land is tight. In areas where the value of these properties is high, mandatory parking supply requirements must be changed. The reduction of the parking lot may change the core of the city, because these spaces can be used for other activities - such as parks, more valuable activities or cheap housing. It is therefore also entirely possible to anticipate the commercial improvement brought about by the increase in activity density (similar to the urban agglomeration economy). This can create more mixed-use and traffic-oriented developments, accelerate the shift to inner-city life, and make these areas more energy-efficient, more efficient, and more livable. Redesigning the building and street interface As driverless cars become the dominant city, construction and development will have to adapt to new modes of traffic flow. They will need to be specifically designed for on-site service, mainly to get in and out of each location. Locations with large passenger flow need to provide customized interfaces for various self-driving cars, while locations with smaller passenger flow will no longer need to provide on-street parking services for each development project. This scenario has great potential to free up roadside space for other uses. Transforming gas stations into new land uses To a large extent, driverless cars are conceived as electric cars, and electric cars are generally charged at night parking. This means that once these vehicles become the dominant road traffic, no gas stations are needed on the streets. These sites will need to be readjusted to suit other land uses. Once this is done, will it set an example for the renovation of the former gas station in all blocks, more convenience stores or online shopping pick-up points? This raises the question of what is the most ideal production use for such a high-profile, easily accessible location. Remodeling a suburban home garage Some of the assumptions about ownership of auto-driving cars or carpooling think that we will not need to own a private car. Therefore, we will no longer need to park vehicles and build garages in residential buildings. This may change a large part of the housing design and transform the garage into other uses, such as studios, short-term accommodation, and so on. In theory, private lanes will no longer be needed. These places can become private green gardens, spaces where children can play, and places where residents can walk and chat with neighbors. However, if space that was once used for garages and passageways can be used for construction, this may exacerbate the trend of larger, less environmentally inefficient homes. Triggering urban expansion Self-driving cars are likely to trigger more urban expansion because more people can use more relaxed travel. This may lead people to rethink the convenience of living close to cities and major employment centers. Low-cost housing on the edge of the city has been the main driver of urban expansion. If travel becomes cheaper and more convenient, self-driving cars may make the economics and practicality of urban expansion more attractive. Change property values, planning controls and land supply Although "geographical location" will still be significant, self-driving cars should cause some blocks to increase the value of the property and depress the value of other neighborhoods. More convenient commuting methods will have an impact on residential real estate prices, and people's preference for urban centre real estate will shift to suburban housing. Although sub-urbanization may accelerate, the concentration of urban core may also be strengthened. We may see people with unique lifestyles prefer these different places. Planning control and land supply will be key tools for controlling the balance between green space and property development. We need to consider how to apply these controls in this new environment to maximize social and economic benefits. How the planning department will manage the order of land use Through the convergence of automation, electrification and car sharing technologies, driverless cars can remarkably reshape real estate, urban development and urban planning - just as cars did in the last century. This transformation also provides planners with an opportunity to make our cities more citizen-centric, expand the size of residents' lives and facilitate their travel, and revert to the pre-dominance of fuel vehicles. However, are urban planners ready to mitigate the destructive impact that our cities may suffer? Do we understand these damages and their meaning? As a profession, urban planning is basically not ready for self-driving cars. Planners need to be vigilant, sensible and preventable from potential impacts, especially in terms of restoring the potential for urban expansion. The future of widespread use of self-driving cars has brought both opportunities and challenges for land use. If the results of the progress we are going to make, we need to make an objective assessment of the impact of complex land use, economy, and society on our growing cities.