crash barrier

简明释义

安全护拦

英英释义

例句

1.Drivers should always be aware of the crash barriers on the side of the road.

司机应该时刻注意道路旁的防撞栏。

2.After the accident, the crash barrier was damaged and needed replacement.

事故发生后，防撞栏受损，需要更换。

3.The car lost control and crashed into the crash barrier.

这辆车失去控制，撞上了防撞栏。

4.The engineers designed a new type of crash barrier to absorb impact better.

工程师设计了一种新型的防撞栏，以更好地吸收冲击。

5.Highways are often equipped with crash barriers to enhance safety.

高速公路通常配备有防撞栏以增强安全性。

作文

In modern transportation, safety is a paramount concern. One of the critical components designed to enhance road safety is the crash barrier. A crash barrier (防撞护栏) is a structure installed along roads, highways, and bridges to prevent vehicles from veering off the roadway. These barriers are engineered to absorb impact and reduce the severity of accidents, ultimately saving lives. The primary function of a crash barrier is to contain errant vehicles, preventing them from colliding with obstacles such as trees, signposts, or even oncoming traffic. In many cases, especially on highways where vehicles travel at high speeds, the absence of a crash barrier can lead to catastrophic outcomes. For instance, in regions with steep embankments, a vehicle that loses control could easily tumble down a slope, resulting in serious injuries or fatalities. There are various types of crash barriers designed for different environments and purposes. Concrete barriers, often referred to as Jersey barriers, are commonly used in urban settings due to their durability and effectiveness. These barriers can withstand significant force and are often utilized in construction zones or areas where traffic patterns may change frequently. On the other hand, metal guardrails are more flexible and can absorb impacts while allowing some degree of deflection, which can be beneficial in minimizing damage to both the vehicle and the barrier itself. Moreover, the design of a crash barrier plays a crucial role in its effectiveness. Engineers must consider factors such as the height, width, and material of the barrier to ensure it meets safety standards. For example, a barrier that is too low may not effectively prevent a tall vehicle from crossing over it, while one that is too rigid might not absorb enough energy during a collision, leading to more severe consequences. In addition to physical attributes, the placement of a crash barrier is equally important. Strategic positioning can significantly enhance its protective qualities. Barriers should be installed in areas with high accident rates, sharp curves, or locations where vehicles are likely to lose control. Regular maintenance is also essential to ensure that these structures remain effective over time. Weather conditions, wear and tear, and impacts from vehicles can compromise the integrity of a crash barrier, making it vital for authorities to conduct routine inspections. Public awareness about the importance of crash barriers is also crucial. Many drivers may not fully appreciate the role these structures play in keeping them safe on the road. Educational campaigns can help inform the public about the significance of adhering to speed limits and driving responsibly, especially in areas where crash barriers are present. In conclusion, crash barriers are indispensable elements of modern road safety infrastructure. Their ability to protect lives and minimize damage during vehicular accidents cannot be overstated. As we continue to develop our transportation systems, investing in effective crash barriers and promoting safe driving practices will undoubtedly contribute to safer roads for everyone. With ongoing advancements in materials and engineering, the future of crash barriers looks promising, ensuring that they remain a vital component of road safety for years to come.

在现代交通中，安全是一个至关重要的关注点。设计用来增强道路安全的关键组成部分之一是crash barrier（防撞护栏）。crash barrier是在道路、高速公路和桥梁沿线安装的结构，用以防止车辆偏离车道。这些护栏经过工程设计，可以吸收冲击并减少事故的严重性，最终拯救生命。crash barrier的主要功能是限制失控的车辆，防止它们与树木、标志杆或甚至迎面而来的交通发生碰撞。在许多情况下，尤其是在高速公路上，车辆以高速行驶，如果没有crash barrier，可能会导致灾难性的后果。例如，在陡峭的土坡区域，一辆失控的车辆很容易跌落下坡，造成严重伤害或死亡。有多种类型的crash barrier，旨在适应不同的环境和目的。混凝土护栏，通常称为泽西护栏，因其耐用性和有效性而常用于城市环境。这些护栏能够承受重大冲击，通常用于施工区或交通模式可能频繁变化的区域。另一方面，金属护栏更具灵活性，能够吸收冲击，同时允许一定程度的偏转，这对减少对车辆和护栏本身的损害是有益的。此外，crash barrier的设计在其有效性中扮演着关键角色。工程师必须考虑护栏的高度、宽度和材料，以确保其符合安全标准。例如，过低的护栏可能无法有效阻止高大的车辆越过，而过于坚硬的护栏可能无法在碰撞时吸收足够的能量，导致更严重的后果。除了物理特征外，crash barrier的放置同样重要。战略性的位置可以显著增强其保护特性。护栏应安装在事故率较高、急转弯或车辆可能失控的区域。定期维护对于确保这些结构随时间保持有效也至关重要。天气条件、磨损和来自车辆的冲击都可能损害crash barrier的完整性，因此当局必须进行例行检查。公众对crash barriers重要性的认识也是至关重要的。许多驾驶员可能并不完全理解这些结构在保障他们道路安全方面所发挥的作用。宣传活动可以帮助公众了解遵守限速和负责任驾驶的重要性，特别是在有crash barrier的区域。总之，crash barriers是现代道路安全基础设施不可或缺的元素。它们在保护生命和减少交通事故造成的损害方面的能力不容小觑。随着我们不断发展交通系统，投资于有效的crash barriers并促进安全驾驶实践，无疑将为每个人贡献更安全的道路。随着材料和工程技术的不断进步，crash barriers的未来看起来充满希望，确保它们在未来几年继续成为道路安全的重要组成部分。