设计车速( 计算行车速度) 【design speed】指的是道路几何设计（包括平曲线半径、纵坡、视距等）所采用的行车速度。
同时，车辆能够按照或者接近设计车速行驶，获得尽可能不停顿的通行权。
Meanwhile, the vehicle can travel in accordance with or close to design speed to access to non-stop wayleave as far as possible.
这一铅笔型超音速汽车由英国一研究团队设计，车速预计超过每小时1,000英里(时速1,609公里)，无疑将成为陆地交通工具的第一速度。
A British team aiming to smash the current land speed record designed the pencil-shaped car and hope it will travel at more than 1,000 miles per hour.
论文按照国家标准设计不同车速下平顺性随机输入及脉冲输入下虚拟行驶试验，并在设计过程中编制了试验所需的路面谱生成程序。
According to the national criterion: Method of random input running test and Method of pluse input running test, the virtual road tests on the vehicle ride comfort are designed.
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