As we move towards a future of autonomous vehicles, questions regarding their method of communication have arisen. One of the common questions concerns the placement of the signaling used to communicate with pedestrians and road users, but few works have been fully dedicated to the matter. This paper uses a simulation made in the Unity game engine to record the fifteen different vehicles under fifty-seven different scenarios each for the first time, in order to find how often its forward-facing exterior surfaces can be seen by a pedestrian on the sidewalk. Variables include the vehicle type, position, number of vehicles on the road, camera position and direction, as well as its minimum and maximum distance from the recorded points. It was concluded that the areas of the vehicle most often seen by pedestrians on the sidewalk attempting to cross the road were the wheels, front fenders, and headlights. Based on these results, a suggestion is made to implement displays on at least two of the following regions: windshield, front fenders, side mirrors. These findings are valuable in the future design of signaling for autonomous vehicles in order to ensure pedestrians are able to see them on approaching vehicles. The software used provides a platform for similar works in the future to be conducted.

翻译：随着我们迈向自动驾驶车辆的未来，关于其通信方式的问题也随之产生。其中一个常见问题涉及用于与行人和道路使用者通信的信号装置的布置，但很少有研究完全专注于这一课题。本文首次使用Unity游戏引擎构建的模拟环境，在57种不同场景下分别对15种不同车辆进行记录，以探究其前向外部表面被路边行人观察到的频率。变量包括车辆类型、位置、道路上车辆数量、摄像机位置与方向，以及其与记录点的最小和最大距离。研究得出结论：路边试图横穿马路的行人最常观察到的车辆区域是车轮、前挡泥板和前照灯。基于这些结果，建议至少在以下区域中的两个区域部署显示装置：挡风玻璃、前挡泥板、侧视镜。这些发现对未来自动驾驶车辆信号装置的设计具有重要价值，可确保行人在车辆接近时能够清晰识别。所使用的软件为未来开展类似研究提供了平台。