Study on the Influence in the Preservations System of Historic Environments by the Inscription of the City of Quito-Ecuador, on the World Heritage List: Focused on a Chronological Analysis of Municipal Ordinances and Urban Plans

摘要

（1）In the first period (1941-1978), before WHL inscription, the Municipality enacted two master plans that only recognized the existence of the Historic Center, and another two specific plans for this area, which was complemented by Municipal Ordinances (#1007-1727)， that established the boundaries and restrictions for the constructions in the Historic Center. In the second period (1978-2001) after the WHL inscription, the Municipality realized that the current regulations were insufficient to protect the historical and natural areas in the entire city, and started to improve its preservation system, represented in Metropolitan District Plan, Historic Areas Plan and MO #3050. In the third period (2001-present), the Municipality established the current regulatory system (PGDT and PUOS), based on the regulatory system created in the second period for the urban development of theMetropolitan area, which also protects the historical areas. This three periods denmostrate the influence of the WHL inscription on the preservation system of historic environments (Figure 2). (2) Although in the nomination dossier was not specified a clear boundary and buffer zones for the protection of the entire City of Quito, the Municipality of Quito is considering about the boundary of the World Heritage Property, the urban area until 2001. About the buffer zones, has been considering the green areas that surrounds the city (Protector Forests Area). These improvements to the legal status have not been notified to the WHC since 1978.