Overhead wires carrying electrical energy, including but not limited to telephone, cable television and electrical service wires, are a source of possible danger to persons using streets in high density urban areas, including but not limited to the streets of the city center subarea. Therefore, public necessity, convenience, safety and general welfare require that all such overhead wires be relocated underground as soon as possible in accordance with the requirements of this chapter, and that all new electric wires be installed underground. (Ord. 2630 § 1, 2006)