ABSTRACT
Car following behavior is one of the basic behaviors that affect the micro traffic state. Therefore, the research on the car following behavior model is also a focus in the field of traffic engineering. This paper validates Delpiano's improved car following model based on the social force model. The validation indexes are absolute error, and root mean square error and Pearson coefficient. The data are derived from the vehicle trajectory video data obtained from the aerial photography of the Nanjing elevated expressway. The results show that the absolute error of the model is concentrated in [0.5, 0.7], and the root mean square error is concentrated in [0.6, 0.8], which are relatively large. The correlation coefficient is about 0.5, and the overall fitting effect is poor.
