Cities emit huge amounts of pollutants into the atmosphere thailand mobile database and produce a lot of noise, which significantly affects the health and well-being of their inhabitants. Climate change is also increasing the risk of environmental disasters, to which more than 60% of cities with more than 300,000 inhabitants are exposed .
Another problem is social inequality. One of the biggest and most common social problems facing city dwellers today is access to affordable housing, which continues to worsen despite housing programs that aim to change this situation.
The most localized problems of Polish cities are also the ageing of the population and its mobility . Many elements of today's metropolises are not adapted to the needs of older people. Public spaces lack accessible facilities for them in the form of low thresholds or special ramps. Problems also arise in apartment blocks where, unable to use the stairs, these people become " prisoners of the fourth floor" .
Another problem is the insufficient development of urban mobility. Residents of suburban housing face transport exclusion due to insufficient or non-existent bus and train frequencies. There is also a lack of adequate road infrastructure, with the result that Polish streets are among the most dangerous in Europe .
Urban innovation (Smart City)
Innovations in the functioning of the city occur at different levels, such as the environmental, transport and social levels, so it is impossible to describe them all. Nevertheless, it is worth paying attention to at least some of them. At night, it is energy and economic inefficient to uniformly illuminate the entire street when there is no one on it.