Intelligent Transportation Systems (ITS) have garnered considerable attention as a potential solution for addressing the conflict between the increasing demand for transportation and the constraints within transportation infrastructure. One pivotal facet of this field is the domain of traffic flow prediction. In this project, we introduce an inventive methodology for traffic flow prediction, in which we employ CNN to capture the underlying traffic data trends, while Support Vector Regression (SVR) with the signature kernel is adapted to predict the residual components within the traffic data. We evaluated our approach through comprehensive experiments based on real world traffic data, and the results clearly demonstrate a significant improvement in prediction accuracy over both ablation models and alternative state-of-art baseline methods.