scope:

The objectives of the passive safety requirements described in this Standard are to reduce the risk to passenger injury and damage to equipment resulting from collision accidents by providing a means of protection when all possibilities of preventing an accident have failed. In the event of a collision, application of this Standard provides protection for the occupants of new designs of crashworthy vehicles through the preservation of structural integrity, reducing the risk of overriding and limiting decelerations. This Standard does not extend to the design of the vehicle interior structures that may help reduce injury risk caused by impacts between the occupants and vehicle interior, beyond limiting vehicle acceleration and consequential secondary impact velocity of passengers colliding with interior surfaces.

Subjects Not Addressed by This Standard

There are several design considerations related to safety that are not addressed, such as, but not limited to

(a) structural repairs

(b) fatigue

(c) corrosion

(d) fire protection

(e) interior vehicle design

(f) emergency egress from vehicle

(g) inspection and maintenance

Effective Date

This Standard applies to newly constructed heavy rail transit vehicles for transit passenger service ordered 6 months following the date of issuance of this Standard by the Rail Transit Vehicle (RTV) Standards Committee and ASME.