ract—Transportation Cyber-Physical Systems (TCPS) requires simulation-based testing and evaluation due to the prohibitive cost of building realistic test beds. Given the trans-disciplinary nature of TCPS, various simulation models and frameworks have been proposed in civil engineering, computer science, and related fields. Traditionally, researchers in different areas have developed their own set of simulation tools, which provide limited capability for TCPS research. In recent years, we are witnessing a growing interest of combining two or more features of traditional simulators in order to capture the unique characteristics of TCPS. In this paper, we describe several mainstream simulation models used in transportation, communication and human factor studies in TCPS research. Moreover, we present our unique design and implementation of an Integrated Traffic Driving Network Simulator (ITDNS). Finally, we discuss future enhancements that will promote best simulation practices for TCPS...