Study Of Evacusation Dynamical Behaviors Of People In Multi-room At Stake And Energe Dissipation Of Traffic Flow

Recently, with the development of society and economy, the urbanization of our country is very fast. Lots of public places have been built, such as gymnasium, mall, exhibition center etc. Many people injuried and lost their lives in emergency. These events cause great harm to the society. Thus, it is great meaningful that how to evacuate people in any emergency situation as quickly as possible. People evacuation from multi-room in corridor is simulated based on the floor field cellular automata; the influence of people in emergency evacuated toward the normal and opposite direction in corridor is investigated in this paper.At the same time, more and more people own cars and vehicles. The problems that traffic congestion, traffic accident, vehicle emissions, environmental contamination, lack of energy aggravate and have become cosmopolitan. Therefore, it is significant that how to improve the traffic efficiency, reduce the energy dissipation and consumption. In this paper, the energy dissipation based on macroscopic traffic model and the starting kinetic energy of the vehicles in intersection based on NaSch model are studied.This paper consists of the following three main parts:(1)Based on the static field cellular automata, people in low and high density is simulated to evacuate from multi-room and escape toward the normal and opposite direction in corridor. The influence of layout of exit of multi-room to people evacuation is studied. Our study shows that the lower density of the evacuating people and the further distance from the exit of corridor, the less evacuation time people spent and the better layout of the exit of multi-room; the higher density of the evacuating people, the nearer distance from the exit of corridor, the less evacuation time people spent, the better layout of exit of multi-room.(2) According to the definition that the loss of the kinetic energy of traffic flow is the energy dissipation, the energy dissipation formulas of the several typical macroscopic continuum models of traffic flow are derived. The influencing factors of the energy dissipation in macroscopic continuum models are dicussed, comparing to that in cellular automata. The calculation of energy dissipation via two traffic problems-two Riemann initial conditions and the traffic bottleneck on the road indicates the energy dissipation of macroscopic traffic models is differed from that of the CA model. It is not only influenced by the velocity reduction of the vehicle, but also the energy flux of vehicles through road section.(3) Based on NaSch Model and its formula of starting kinetic energy, the influencing factors of the starting kinetic energy in the intersection are investigated. There are the influx and outflux probabilities of the the vehicle on road, the cycle of the traffic light. Our data suggests that the bigger influx probability and the smaller outflux probabiility of the vehicle, the higher vehicle density on road and the shorter cycle of the traffic light, the more shock waves spread back from the intersection and the end of road, the larger total starting kinetic energy.Finally, the conclusions of this paper and the prospect of future researches are presented.