ANSI S2本部分的目的。72/ISO 2631旨在帮助设计和评估fixedguideway 乘客系统，关于振动和重复运动对车辆的影响 乘客舒适。固定导轨车辆提供可预测但复杂的多轴运动 或者说，座椅是一种环境。乘客评价乘坐情况 舒适度不仅基于运动，还基于他们对所提供服务级别的期望 他们已经购买了。 旅行的持续时间并没有被证明是影响旅行的直接因素 预测舒适度（除了可能的运动异常），但预计行程持续时间为 与乘客在船上期望完成的活动类型有关。旅行中的乘客 超过几分钟的时间可以阅读、写作、饮食；在持续时间较长的旅行中 我期待着睡觉。如果骑乘诱发的振动干扰了这些活动， 乘客可能会对具有相同运动环境但不相同的车辆的舒适性进行不同的评价 预期的服务水平或不同的行程持续时间。乘客们可能会根据自己的喜好来判断是否舒适 振动与噪声、温度、湿度、空气质量和温度等因素的相互作用 座椅设计。

The purpose of this part of ANSI S2.72 / ISO 2631 is to help in the design and evaluation of fixedguideway passenger systems, with regard to the impact of vibration and repetitive motions on passenger comfort. Fixed-guideway vehicles provide a predictable but complex multi-axis motion environment that is a function of the guideway, vehicle and seat or berth. Passengers evaluate ride comfort not only based on motion but also on their expectations with regard to the class of service that they have purchased. The duration of the trip has not been demonstrated to be a direct factor in predicting comfort (with the possible exception of kinetosis), but the anticipated duration of the trip is related to the types of activities passengers expect to accomplish while on board. Passengers on trips of more than a few minutes may expect to read, write, eat and drink; on trips of longer duration they will expect to sleep. To the extent that ride-induced vibration interferes with these activities, passengers may rate differently the comfort of vehicles with the same motion environment but different expected levels of service or different trip durations. Passengers are likely to judge comfort based on the interaction of vibration with factors such as acoustic noise, temperature, humidity, air quality and seat design.