为测试验证高速公路电子不停车收费系统是否满足用户需求，提出了一种新的仿真测试方法和工具。对高速公路电子不停车收费系统运行环境进行建模，通过交通仿真模拟测试用例场景行为，基于传感器仿真模型生成测试数据，对部署在等效虚拟机环境上的被测系统实施测试。以某省真实高速公路不停车收费系统作为应用案例进行测试，试验结果表明，仿真测试有效地验证了被测高速公路电子不停车收费系统的功能和性能指标，且测试过程无需使用任何传感器及车辆等设备，有效降低了测试成本，测试工具操作便捷易用，可实现自动或半自动化测试，提高了测试效率。

In order to test whether the expressway ETC (Electronic Toll Collection) system meets the users′ requirement, a new simulation testing method and tool was proposed. The ETC system runtime environment was first modeled to simulate traffic behaviors and generate test data from simulated sensors. Then the ETC system was tested on the equivalent virtualization environment. Experiment on the real-world ETC system shows that the simulation testing method can effectively test the ETC system without deploying any devices. The simulation testing tool can be easily used to support test automation, and can reduce the cost and improve the efficiency of test.