Study on the prognostication of construction casualties based on grey-markov theory

According to the grey system theory and markov principle, the fitting accuracy index is stochastic and fluctuant when time series data development trend is fitted through the grey theory, but the markov principle is suitable for processing the system with great stochastic fluctuation, therefore, a prognostication is put forward which is in accordance with the characteristics of construction casualties´ statistical data and is based on the grey system theory and markov principle. The prognostication is suitable for the dynamic forecasting process featured by short forecasting time, small data quality and great stochastic fluctuation. The conclusion about the development trend of construction casualties with the prognostication based on the grey-markov theory is more ideal compared with the grey model. The application example shows that the forecasting conclusion based on grey-markov theory is more accurate and more reliable. So the model is available enough to forecast the construction accidents.