Distributed Object-based Software Environment for Urban Systems Integrated Simulation

The world is becoming predominantly urban. Such urban systems are threatened by the risk of urban-scale hazards. However, hazard simulation is one of the promoting methods that empower preparedness for the on-time scenario which in turn help to reduce human, economy, culture, and environment losses. This paper presents a Distributed Object-based Software Environment (DOSE) for urban systems integrated simulation. Integrated simulation means a complete city can be simulated: buildings, bridges, pipelines, etc. All are in one simulation. Then, hazard action and in turn damage and losses that have been resulted are simulated. To construct such environment; an architecture has been designed using currently available computer, communication, and information technologies in addition to civil engineering technology. Two main problem statements have been addressed here. First is software environment architecture. Second is software environment scalability. In this paper an Integrated Earthquake Simulation (IES) has been developed and presented as an example application for the software environment. Numerical experiment has been conducted for part of Bunkyo city, Japan, with domain size of (800x600 [m]) and results illustrated spatial variation of ground motion and associated structural damage.