road crossing design

例句：

1. 1. The roadcrossing design is crucial for thesafety of pedestrians and vehicles.
   道路交叉设计对于行人和车辆的安全至关重要。
2. 2. Thenew road crossing design has greatly improved trafficflow.
   新的道路交叉设计极大地改善了交通流。
3. 3. The designer carefully considered the layout ofthe road crossing to ensure smooth traffic flow.
   设计师仔细考虑了道路交叉的布局，以确保交通流畅。