Managing the Operation and Maintenance of Cities Using Quantum Computers

Quantum computing is revolutionizing city management, offering unprecedented solutions to complex urban problems. According to recent studies, quantum algorithms can reduce traffic congestion by up to 20% (Volkswagen, 2025) and optimize energy consumption in buildings, reducing CO₂ emissions by 15%. A notable example is Volkswagen's quantum traffic system in Lisbon, which uses realvtime flow prediction and route optimization, improving public transport efficiency by 30%. In waste management, quantum techniques have reduced disposal costs by 25%, while in supply chains, MIT reports a 40% increase in resilience to disruptors. However, challenges such as quantum error correction (with current rates of 1 error per 1,000 operations) and qubit scalability (current systems handle approximately 1,000 qubits) limit its widespread adoption. Despite this, it is projected that by 2030, 60% of megacities will integrate hybrid quantum classical solutions, driving more sustainable and efficient smart cities. The race to master this technology is already underway, and cities that adopt these tools early will lead the urban transformation of the 21st century.