Walking through the city has turned our lives into an open stage, but this urban ‘Big Brother’ can be quite effective.

Helena Degreas* 04/05/2024 07h00 Jovem Pan News

The use of technologies such as IoT, Big Data, AI, GIS, and blockchain is fundamental for urban public policy planning, promoting safer cities, and improving quality of life.

Some capitals and cities already use technologies for information management and assistance in planning public policies focused on surveillance (anjianhua/Freepik)

The use of technologies such as IoT, Big Data, AI, GIS, and blockchain is crucial for urban public policy planning, promoting safer cities, and improving quality of life. Certainly, you must have come across cameras distributed across buildings, roads, poles, traffic lights, and patrol vehicles seamlessly blending into the urban landscape. These devices attentively observe us, capturing every step, gesture, expression, attitude, and behavior in search of patterns and information that can be utilized by those who installed them. Unlike the screens of a smartphone where we post what we want, our public life is scrutinized by silent witnesses who, keenly, observe our interactions with the city. Walking through the city has turned our lives into an open stage, whether or not we are aware of it. Despite discussions about the loss of control over our image and how it is used by companies and sectors of public administration that capture images, the fact is that currently, data generated daily on the internet exceeds 2.5 quintillion bytes produced by billions of users daily, numbers that point to significant growth in their production in any format.

“The real-time city is real!” With this phrase, the Senseable City Lab (MIT) has been working on contemporary urban management using the abundance of available images (Google Street View is one of the platforms used) to understand the different aspects of the city. Making sense of these sets of images that are then transformed into visual data can help us measure the legibility of space, quantify different aspects of urban life, and consequently design responsive environments. Cities are complex organisms that require approaches and the use of networks and digital information across their territory to understand the dynamics and interactions of the built environment. The Senseable City Lab (MIT) anticipates and studies urban changes through an omni-disciplinary approach, combining insights, methodologies, and techniques from various areas that integrate knowledge and skills from designers, urban planners, engineers, social scientists, biologists, physicists, and other disciplines involving diverse sectors and communities aimed at deepening mutual understanding between cities and inhabitants.

These technologies, when combined with sensor installation, allow for anticipating changes by capturing real-time information, providing a comprehensive and updated view of the situations that occur on city streets. By collecting real-time data on traffic, pedestrian and cyclist movement, environmental conditions related to noise production, thermal sensation, wind speed, and direction, urban maintenance (cleaning of public roads, repairs to sidewalks and squares, tree pruning, maintenance of public lighting, removal of debris, and inspection of green areas), for example, they can identify emerging trends, detect problems quickly, and inform urban planning decisions and public policies proactively. In Brazil, some capitals and cities have been standing out in the use of technologies for information management and assisting in the planning of public policies focused on surveillance and security, including IoT for real-time data collection, Big Data and Analytics to process information, AI to generate insights and extract meaningful insights from data, providing a complete understanding of problems, GIS for spatial data analysis, blockchain for security and transparency, and interconnected platforms promoting data sharing. When integrated, these technologies empower authorities to plan and implement effective policies tailored to the needs of urban communities.

Recently, the Municipality of São Caetano do Sul launched the São Caetano Mais Segura Program, investing over R$ 70 million in 2023. The program aims to deploy an urban infrastructure to support the over 400 already installed 360-degree cameras and the planned expansion of 1,335 that will cover the entire city. Additionally, it includes the installation of the Emergency Management Center (CGE), responsible for monitoring and managing urban emergency situations, using 360-degree cameras and sensors. Furthermore, integration of security forces with technology was carried out and personnel increased, through an agreement with the State government and the integration of GCM vehicle cameras with the Muralha Paulista and Córtex systems. These systems allow for the immediate identification of vehicles registered with CGE as stolen, as soon as they enter the city. A pop-up alerts both CGE and GCM vehicles about the irregularity, increasing efficiency in capturing criminals and ensuring daily security.

For those unfamiliar with the technology needed to ensure the efficiency and effectiveness of the security system, 360-degree cameras require the deployment of a robust network of optical cables to transmit real-time data with high speed and image quality, and the guarantee of stable energy systems for continuous operation. Effective control and monitoring require sophisticated management software, allowing real-time analysis and event detection. In addition to the installation of support infrastructures, such as poles and towers, that will allow for the strategic positioning of the cameras. Furthermore, cybersecurity measures to protect cameras and data against unauthorized access and attacks were taken for the program’s effectiveness. Data released by the São Paulo State Public Security Secretariat (SSP-SP) between March 2023 and 2024 show a decrease in various categories of crimes: reduction in cases of vehicle theft (45%), vehicle theft (37.50%), cargo theft (100%). These statistics are reinforced by quarterly comparisons, which also show a decrease in all major crime indices.

The use of technologies such as IoT, Big Data, AI, GIS, and blockchain is fundamental for urban public policy planning. These tools enable real-time data collection and analysis, making cities more responsive to citizens’ needs. However, their effectiveness depends not only on technological infrastructure but also on political commitment and the training of public agents for changing work culture. By integrating these technologies, authorities can create place-specific policies, promoting a more responsive city capable of meeting the demands of the population and improving their quality of life.

Do you have any questions or want to suggest a topic? Write to me on Twitter or Instagram: @helenadegreas.

*This column was written in partnership with geographer Luís Fernando Borsoi, an expert in spatial analysis and geoprocessing, environmental and urban planning for smart cities.

The English version employed features from ChatGPT and Gemini.

The right to the cultural memory: why we should be concerned with old buildings.

Townhouses, churches and even factories expose the identity of a place to the world; without preserving history, we lose our cultural identity and much of ourselves.

Abandoned townhouse in Vila Maria Zélia, north of São Paulo

The other day I saw on Twitter from a colleague some images of the facades of a building constructed in the early twentieth century and whose historical value, although evident, did not prevent total disfigurement, transforming it into a grotesque building, which looked more like a shoe box bumpy. The original facades, which were full of different ornaments, with tall, slender wooden windows, were replaced by a hideous floor tile. Some readers may be wondering why should we be concerned with old buildings? Preserving history for what? A townhouse, a church, a factory, a square, an entire neighborhood bear on the image and expose the history of people who lived in these places in the landscape. Their stories are all there, showing themselves in every detail, as if reminding current residents, the way they lived, worked, studied, and lived our predecessors, what their daily routines and social behaviours were. They remind us that much of what we are today we owe to all of them.

This is what we call memory. Each of these elements is a kind of link that connects us to the past, reminds us of who we are and where we came from. Each built space materializes the history of countless generations and brings, precisely for that reason, our history. Without the preservation of material (its artifacts) and immaterial (its stories and values) history, we lose our cultural identity and much of ourselves. But why is it that the de-characterization and demolition of Brazilian architectural, urban and landscape assets is so frequent? Any traveller loves to post photos in front of cathedrals, old buildings and squares of countries whose population and governments have public policies and financial incentives for the conservation and preservation of architectures and places built throughout an entire process of historical formation. My Greek ancestors, despite the economic difficulties that have plagued the country for decades, preserve their history through its monuments. Much of the country’s economy comes from tourism, which exposes its traditions and values ​​through architecture, its museums – which keep old objects -, from villages built hundreds of years ago, from its happy songs and dances, food, olive oils, wine and cheese. They are proud of their history and what they are. History has shaped them as a society and as individuals.

Although there are still several difficulties in dealing with the preservation of historical and cultural assets, it is possible to make some considerations on the subject here in São Paulo. In 2006, the city’s mayor enacted Law No. 14,223 and Decree No. 47,950, known as the Clean City Law. From it, many facades, previously covered by panels and promotional signs of all kinds, were removed, revealing the beauty of several old buildings that no one knew about. If it was difficult for the owners to work with smaller ads and some adaptations, the city and the population gained identity, as entire streets, built at the same time and with similar facades and volumes, were in sight, presenting the history of the place to all citizens. Associations that deal with communication, and that have the habit of systematically enveloping buildings and facades, try to change the law by complaining that, without the signs, no one sees stores. How can this argument? The population must always keep an eye on these attacks.

Urban development and historical preservation go together and depend on the will of the population and their performance before the government to happen. The definition of the types of intervention that cultural heritage can receive occur at three institutional levels: at the municipal (in São Paulo, through Conpresp), state (Condephaat) or federal (Iphan) levels. One of the instruments of preservation is the Historical-Cultural Goods Protection called in Portuguese – Tombamento, feared by property owners with historical value. The fear has its raison d’être: the processes for preservation are long, dragging in some cases for decades, resembling the processes sent to the Brazilian Judiciary; there is also a lack of dialogue and interaction between the three institutional instances, a situation that generates more delays. Have you ever thought about having to wait ten years or more for the appraisal and finalization of a process without being able to do anything with your property? Another harmful factor that can be added is the lack of participation by the public involved in the decisions and the prioritization of technical and aesthetic elements, which make the listed property cease to be a participative and articulated element in the city, losing its symbolism and character urban heritage. Resolutions taken exclusively by technicians tend to dissociate themselves from the reality of the citizen.

Another important issue regarding the preservation of cultural assets concerns the incentive policies for property owners who are known to have cultural value. After all, if the building is listed because the interest is public, the city hall, the State and the Union must offer counterparts, as they are interested in preserving the country’s culture and history. In São Paulo, with the approval of the PDE (Strategic Master Plan) in 2014, the conservation of the listed property becomes a condition for the use of the TDC (Transfer of the Right to Build), one of the instruments that can be used as a tool for obtaining resources for the rehabilitation, restoration, retrofit, requalification, and other projects, depending on the level of preservation of the property. In other words, the entire property has a constructive potential associated with the urban regulations of each city. When a property is listed, it is not able to take advantage of all the construction potential provided for in the laws due to the restrictions imposed by the listing. With TDC, owners can sell the unused construction potential to other properties in the city and invest the resources exclusively in the recovery of their own, as this is money intended only for this purpose. With the resources, it is possible to hire qualified technical labour and suitable materials to restore the property.

Finally, the tipping instrument should be just one of the elements that make up cultural preservation policies, but that is not always the case. When going through the restoration process, the works must comply with the other legal provisions that guarantee the safety and habitability of the building. One example is the AVCB (Fire Department Inspection Auto), a document that certifies the fire safety conditions provided for in legislation whose direct application is not always possible for buildings built in other centuries… Another example addresses the necessary accessibility issues to all areas of buildings. Despite the existing rules and legislation, which must be applied, it is necessary to build adequate solutions for each building in a particular way because the direct application of the law can lead the owner to incur a crime due to the mischaracterization of the property. It is up to the public authorities to resolve this set of issues to collaborate with access to information on existing incentives, as well as collaborate with programs that unify actions and streamline administrative processes and routines in the name of preserving the Brazilian cultural heritage.

Do you consider that the old buildings and public monuments in your city are well preserved?

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The English version of this Report is a free translation from the original, which was prepared in Portuguese.