前言这是CSA D409《残疾人交通机动车辆》的第四版。它取代了2002年、1992年和1984年出版的以前版本。本版本的范围已缩小，不再适用于校车。无障碍校车的规定现在包含在CSA D250中。本标准适用于为残疾人提供交通服务的任何个人、俱乐部、机构或组织运营或代表其运营的机动车。 本标准不适用于公交车辆和城际机动客车。本标准参考了联邦法规中的几项机动车安全法规（MVSR）。一些MVSR要求的适用性取决于车辆的额定车辆总重（GVWR）。一些MVSR要求适用于GVWR为4536 kg（10000 lb）及以下的车辆，而一些MVSR要求适用于GVWR超过4536 kg（10000 lb）的车辆。注:为了适应常见的车辆尺寸，本标准将该阈值调整为4581 kg（10 100 lb）。 2002年版D409中包含的MVSR和相关联邦标准中的许多基本车辆设计和性能要求已从本版中删除（由于许多参考MVSR，这些要求现在被认为是多余的）。此外，与安全或可接近性无关的基本制造要求已从本标准中删除。以下是本版本中的其他重大变化:a）不同车辆尺寸的改进重量范围（与美国。 （美国分类制度）；b） 增加了使用替代燃料系统的车辆的规定；c） 移动辅助固定和乘员约束（MASOR）系统的修改设计要求（第7.2.2条）；d） MASOR系统定位的修改要求（图3）；和e）MASOR系统锚定点的修改要求（图4）。范围1。1本标准适用于除乘用车（定义见《机动车安全法》第2节）以外的机动车，其设计、制造、改装和配备的目的是运输残疾人。 1.2本标准规定了a）车辆、升降机和坡道的设计和制造；b） 移动辅助设备的位置和安全性；c）所需的安全设备。1.3本标准不适用于任何公共交通巴士和任何公路巴士。本标准也不适用于校车（见CSA D250）。1.4国际单位制给出的数值为本标准中的记录单位。括号中给出的值仅供参考和比较。1.5在本标准中，“应”用于表示要求，即:。 e、 ，用户必须满足的条款，以符合标准；“应该”用于表示建议或建议但不需要的建议；“可”用于表示一个选项或在标准范围内允许的选项。注释随附条款不包括要求或替代要求；随附条款的注释的目的是将解释性或信息性材料与文本分开。表和图的注释被视为表或图的一部分，可以作为要求编写。 附件被指定为规范性（强制性）或信息性（非强制性）来定义其应用。

PrefaceThis is the fourth edition of CSA D409, Motor Vehicles for the Transportation of persons with physical disabilities. It supersedes the previous editions published in 2002, 1992 and 1984. The scope of this edition, has been reduced to no longer address school buses. Provisions for accessible school buses are now covered in CSA D250. It is intended that this Standard be applied to motor vehicles operated for, or on behalf of, any person, club, agency, or organization that provides a transportation service for persons with physical disabilities. This Standard does not apply to transit vehicles and intercity motor coaches. This Standard makes reference to several motor vehicle safety regulations (MVSR) contained in federal regulations. The applicability of some MVSR requirements is dependent on the gross vehicle weight rating (GVWR) of the vehicle. Some MVSR requirements apply to vehicles having a GVWR of 4536 kg (10 000 lb) and under, while some apply to vehicles having a GVWR of over 4536 kg (10 000 lb). Note: In order to accommodate common vehicle sizes, this Standard has adjusted this threshold to 4581 kg (10 100 lb). Many of the basic vehicle design and performance requirements found in the MVSR and the affiliated Federal standards, included in the 2002 edition of D409, have been removed from this edition (with the many references to the MVSR, these are now considered redundant). In addition, basic manufacturing requirements not related to safety or accessibility have been eliminated from this Standard. The following are other significant changes made in this edition: a) modified weight ranges for various vehicle sizes (harmonization with U.S. classification scheme); b) added provisions for vehicles powered with alternative fuel systems; c) modified design requirements for mobility aid securement and occupant restraint (MASOR) systems (Clause 7.2.2); d) modified requirements for the positioning of MASOR systems (Figure 3); and e) modified requirements for the anchor points for MASOR systems (Figure 4).Scope1.1 This Standard applies to motor vehicles other than passenger cars (as defined in Section 2 of the Motor Vehicle Safety Act) designed and manufactured, or converted, and equipped for the purpose of transporting persons with physical disabilities. 1.2 This Standard specifies a) the design and manufacture of the vehicle, lifts, and ramps; b) the mobility aid location and securement; and c) the required safety equipment. 1.3 This Standard does not apply to any transit bus and any over-the-road bus. This Standard also does not apply to school bus (see CSA D250). 1.4 The values given in SI units are the units of record for the purposes of this Standard. The values given in parentheses are for information and comparison only. 1.5 In this Standard, "shall" is used to express a requirement, i.e., a provision that the user is obliged to satisfy in order to comply with the standard; "should" is used to express a recommendation or that which is advised but not required; and "may" is used to express an option or that which is permissible within the limits of the Standard. Notes accompanying clauses do not include requirements or alternative requirements; the purpose of a note accompanying a clause is to separate from the text explanatory or informative material. Notes to tables and figures are considered part of the table or figure and may be written as requirements. Annexes are designated normative (mandatory) or informative (nonmandatory) to define their application.