Urban planning as one of the central aspects of city formation, includes the process of organising, arranging, and manipulating the space of the urban societies. Contemporary approaches to urban planning strive to develop productive, comfortable dwellings that can fit the modern population’s needs in the present and can be easily adjusted to meet the future requirements of the society. However, one has to remember that cities are dynamic and therefore numerous challenges that face the planners. The following article focuses on the principal challenges facing today’s urban planning and the various factors that urban planners must deal with to foster proper and sustainable cities.

Population Growth and Urbanization
Another significant concern that contemporary urban design faces involves the issues of increased urbanisation and population density in many regions across the world. The United Nations noted that in the next 33 years, about 70% of the world’s population will be living in cities (Anna, n.d.). Such growth dynamics increase pressure on urban development and in particular on housing, transportation, and infrastructure, public services.
Despite the early signs, urban growth in cities with high population growth rates especially in the Asian and African regions poses a challenge to urban planners as overcrowding results in slum formation, poor hygiene, and poor and inadequate supply of common commodities such as water and electricity. Controlling urban sprawl and coming up with ways of implementing effective land management and avoiding the growth of slums remains a challenge to a greater extent.
Environmental Sustainability
It has been estimated that cities account for about 70-75% of global GHG emissions arising mainly from transport, energy use, and industry. This renders the integration of sustainable urban models inevitable but problematic.
Urban planners now have the challenge of incorporating green infrastructure, for public transport, and making cities ‘low impact’. Yet, these changes are hard to implement due to developments in many cities that tightly constrain the possibility of retrofitting old buildings or redesigning the transport system, as it can be costly and challenging. In addition, striving for both, economic growth, and environmental objectives, most of the time results in tensions, as economic actors are not interested in environmental measures and investment in environmental infrastructure.
Social Inequality and Affordable Housing
By nature, urban planning and social inequality are intricately linked because the physical layout of cities, and trends in the use of the built environment are prone to the reinforcement of social, and economic divides. In many districts of various cities, it is evident that the rich areas often have better provision of facilities, quality schools, and other social facilities such as parks and efficient forms of transport while the poor areas are left out in the cold through lack of Investment. These geographical inequalities of resources are some of the reasons why poverty and social exclusion are often recurrent issues that urban planners must engage in, to end.
One of the biggest problems that many cities face is that the supply of affordable housing is limited, house prices are rising day by day, and many underprivileged families are shifted to the periphery or in substandard housing. This is especially true when a formerly low-income area is taken over by ‘gentrifiers,’ or young professionals who purchase or rent in poorer neighbourhoods because they are more affordable, then in time, they force up the property prices, thus effectively displacing longtime residents. It therefore becomes the task of the planners to come up with urban cities with accommodation facilities that are still cheap but also do not erode the cultural and social setting of these people.
Technological Advancements and Smart Cities
Smart city is the integration of ICT in management, delivery of public services, and general enhancement of the life of people in cities. This encompasses smart traffic systems, energy efficiency structures, and the use of technologies in relaying information to the citizens. But, let it be said that embedding technology in urban settlements is not without some form of drawbacks. Another significant risk is the privacy and security of the information that is being collected and processed due to the nature of the smart city technologies in which a massive amount of data coming from citizens and the public domain is collected. Moreover, the expense incurred to support the rollout of smart city measures can be very expensive for most cities and Urban local bodies especially sometimes in the developing world.

However, the digital divide restricts the participation of all citizens in the new features of smart cities above. It is thus the role of planners to ensure that with the advancement of technology in smart city projects, they have to prevent worse scenarios where smart cities are inclusive to everyone and are easy to access.
Public Participation and Governance
Another complex issue that contemporary urban planners have to solve is governance and public involvement. An understanding of many social players is relevant in the urban planning process as it is a process that involves several players such as government departments, private developers, local merchants, and the public. The problem in managing this interest over the other is the fact that it requires a certain level of coordination toward the vision and future development of a city.
In most instances, planners in their central offices make strategic choices and come up with urban design plans that do not positively accommodate the needs of the end users. Today, effective planning has been seen to call for greater participation from the general public. However, meaningful public participation may not be easily put into practice because of recurrent shortcomings of inadequate resources, lack of manpower expertise, and political will. A lot of efforts need to be made to ensure that there is enhanced participation of community stakeholders in the planning process, open and accountable government, and integration of planning that involves intersectoral coordination.
Current urban design therefore presents a scenario with multifaceted problems that need fitting, efficient, effective, and innovative solutions. Main areas of concern include; Population growth, Environmental issues, social issues, Technological factors, and participation of the public. Despite this, solving these challenges needs a comprehensive strategy that has to incorporate the economic, social, and environmental dimensions. This way, by embracing new technologies, engaging with the community, or focusing on sustainability, urban planners can design healthy sustainable cities for the future.







