326 ITU‐T's Technical Reports and Specifications Therefore, any strategy of planning for the ICT infrastructure deployment should take into account aspects such as combating the digital divide within cities. Figure 84 – Social and spatial polarization within cities A scheme of how trends in telecommunications are underpinning the shift to more socially polarized cities. The authorities should be aware of the polarization problem caused by the lack of infrastructure and the differences in economic and social conditions within cities. Therefore, it is recommended that communication infrastructure projects should be given a priority status in the political agenda and receive an adequate amount of public resource for these projects to reach maturation. 4.2 Strategies for the deployment of digital/ICT infrastructure An approach to establish deployment strategies is to study the interactions between the Supply and Demand components. An adequate offer of connectivity boosts the demand, while more demand increases and improves the supply (a desirable virtuous circle). Taking that into consideration, the content of this section should not focus only on supply strategies, but also on demand strategies. Moreover, appropriate strategies in the regulatory and financial aspects should also be included. 4.2.1 Strategies to stimulate the supply Governments may own existing infrastructure and share it with private operators in order to develop new projects. Telecommunication networks: Governments may own existing wireless accesses and share their network capacity. Projects are usually focused on facilitating the administrative tasks of local government and providing connectivity to educational institutions. Poles, lampposts, buildings and other high places: High points are necessary to place antennas and other infrastructures. Duct as sewers, gas pipes and others: They are especially important for transport networks, such as sewers are used for fiber optic laying. There may be versatile ducts for all networks (electricity, gas, telecommunications, air conditioning and water).