Calibration and Validation of Microscopic Simulation Model of Ambedkar Statue Junction Based on VISSIM

VISSIM has become one of the most useful and reliable programs utilized by contemporary engineers and researchers in the processes of evaluation of control operations and strategies of transportation. In this study calibration and validation techniques of VISSIM parameters that derive from the need to accurately match the simulations results of the models with the observed field data. Micro-simulation is a widely used and one of the most effective ways to predict traffic behavior of urban intersections. The advanced microscopic traffic simulator is PTV VISSIM. It has been used to evaluate the peak-hour traffic operating conditions to replicate the total scenario several local vehicles are modelled. The model was duly calibrated using field data and validated using Geoffrey E. Heavers (GEH) statistics comparisons or GEH values, FDistribution, T-distribution and Chi-squared test. A key component of simulation modeling is the calibration and validation stage of the model building process. Calibration is defined as the adjustment of computer simulation model parameters to accurately reflect prevailing conditions of the roadway network. Validation is defined as the process of comparing simulated model results with field measurements in order to determine the accuracy of the simulation model. In a metropolitan city of a developing country, for instance Ambedkar Statue Junction model has been calibrated from the actual field data and using the outcome the total speed and volume for an intersection of that corridor was estimated.