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：随着迈向自动驾驶汽车的未来，关于其通信方式的问题逐渐浮现。一个常见问题涉及用于与行人及道路使用者通信的信号装置布局，但专门针对此问题的研究寥寥。本文首次利用Unity游戏引擎构建的仿真环境，记录57种不同场景下的15种车辆，以探究行人站在人行道上时，车辆前向外部表面能被观察到的频率。变量包括车辆类型、位置、道路车辆数量、摄像机位置与方向，以及其与记录点的最小和最大距离。结果表明，尝试横穿道路的人行道行人最常观察到的车辆区域为车轮、前翼子板及前大灯。基于这些结果，建议在以下区域中至少两处安装显示装置：挡风玻璃、前翼子板、侧后视镜。这些发现对自动驾驶汽车信号装置的未来设计具有重要价值，以确保行人能在接近车辆时观察到信号。所使用的软件为未来开展类似研究提供了平台。