Our Professional Answer: In densely populated urban environments, traditional open-trenching methods can be disruptive and impractical. The most efficient and modern solution is Micro-trenching. This method involves creating very narrow and shallow cuts in the ground, typically just a few centimeters wide and deep. It significantly reduces disruption to traffic and public spaces, and allows for rapid installation of new cable ducts. Additionally, for locations that are difficult to access, Horizontal Directional Drilling (HDD) is an excellent "trenchless" option, boring a path underground without disturbing the surface.