Federal Regulations Require Roof Crush Resistance To Be

216a roof crush resistance as published in.

Federal regulations require roof crush resistance to be.

Federal motor vehicle safety standard fmvss no. A the lower surface of the test device must not move more than 127 millimeters and. 571 216a standard no. It has long been taken for granted that roof crush is directly and causally related to occupant injury.

216 roof crush resistance became effective on september 1 1973. The relationship of roof crush and strength to injury is the fundamental issue in determining whether roof strength standards including fmvss 216 might be of value in australia. This standard establishes strength requirements for the passenger compartment roof. The number of occupant injuries is significantly higher.

The nprm reflected comments received in response to a request for comments rfc published in the federal register 66 fr 53376 on october 22 2001 and research and testing conducted prior to the. 216 roof crush resistance. Roof crush resistance the text of this document is based on federal motor vehicle. The purpose of this standard is to reduce deaths and injuries due to the crushing of the roof into the occupant compartment in rollover crashes.

The relationship between injury levels and intrusion or roof crush has. This standard establishes strength requirements for the passenger compartment roof. Federal motor vehicle safety standards. Every year approximately 10 000 americans are killed in rollover accidents accounting for about 30 of all light vehicle occupant fatalities.

Given the requirements of safetea lu we need to ensure that the standard results in improved real world roof crush resistance for these vehicles. S5 1 when the test device described in s6 is used to apply a force to a vehicle s roof in accordance with s7 first to one side of the roof and then to the other side of the roof. 49 cfr parts 571 and 585216 as part of a comprehensive plan for reducing the risk of rollover crashes and the risk of death and serious injury in those crashes this final rule upgrades the agency s safety standard on roof crush resistance in several ways. It is envisaged that the roof is.

We decline however to adopt a swr higher than 1 5 for vehicles with a gvwr greater than 2 722 kilograms 6 000 pounds given the small additional benefits 4 additional lives saved and. The purpose of this standard is to reduce deaths and injuries due to the crushing of the roof into the occupant compartment in rollover crashes. Supplemental notice of proposed rulemaking snprm. On august 23 2005 nhtsa published in the federal register 70 fr 49223 a nprm to upgrade fmvss no.

Roof crush resistance 222 13 kb final rule.