摘要：Planning for post-disaster accessibility is essentialfor the provision of emergency and other services to protectlife and property in impacted areas. Such planning is particularly important in congested historic districts where narrowstreets and at-risk structures are more common and may evenprevail. Indeed, a standard method of measuring accessibility, through the use of isochrones, may be particularly inappropriate in these congested historic areas. Bucharest, Romania, is a city with a core of historic buildings and narrowstreets. Furthermore, Bucharest ranks second only to Istanbul among large European cities in terms of its seismic risk.This paper provides an accessibility simulation for centralBucharest using mapping and geographic information system (GIS) technologies. It hypothesizes that all buildings inthe risk 1 class would collapse in an earthquake of a similarmagnitude to those of 1940 and 1977. The authors then simulate accessibility impacts in the historic centre of Bucharest,such as the isolation of certain areas and blockages of somestreet sections. In this simulation, accessibility will be substantially compromised by anticipated and extensive building collapse. Therefore, policy makers and planners needto fully understand and incorporate the serious implicationsof this compromised accessibility when planning emergencyservices and disaster recovery responses.
