What is the purpose of rumble strips on the sides of a carriageway?
- To improve drainage of the carriageway in heavy rain
- To prevent livestock entering the carriageway.
- Correct answerTo alert drivers that their vehicle is veering out of their lane.
Explanation
Rumble strips are raised or grooved patterns on the roadway shoulder that provide both an audible warning (rumbling sound) and a physical vibration to alert drivers that they are leaving the driving lane. In addition to warning inattentive drivers, rumble strips help drivers on the road during inclement weather when visibility is poor.
Read in Chinese
车道两侧的振动带有什么作用？
- 为了在大雨中改善车道排水
- 防止牲畜进入车道。
- 提醒驾驶员他们的车辆正在偏离车道。
振动带是设置在道路路肩上的凸起或凹槽图案，它们通过发出隆隆声和物理震动来提醒驾驶员偏离行车道。除了警告注意力不集中的驾驶员外，振动带在能见度较低的恶劣天气中也能帮助驾驶员保持在道路上。