9 g3 p3 S/ H# s1 a; o/ [ ! v) j+ I0 Y; G& G6 f看过一篇文章分析大小车的安全性的,里头也是提到实际交通事故的撞击方式,在所有致命事故里,50%涉及非两车撞击(翻车,撞击障物,比如树,水泥柱子),这类事故里跟安全相关的因素车子重量大小不算其中,主要是; M' i3 V' Q1 V6 W! M- l( x0 q6 v1 P
a) an effective restraint system (seat belts and airbags) ! j5 d: L! J0 m" e, Q4 Fb) effective energy absorption in the crush areas (front end or rear end)0 A6 {; H7 \/ y1 y) V
c) a strong cabin area that does not collapse in the crash# p& D0 E, J6 t- x+ W% x) c$ e) Y
None of these items are automatically better in large and heavy vehicles. In fact, for item c, the roof of a heavier vehicle is more likely to be crushed in a roll-over accident than a lighter vehicle. This is one reason why rollovers in SUV's cause a higher percentage of deaths than in cars (in addition to their higher center of gravity.)7 A4 b: K# k6 `$ T ! |! ?9 ?0 R! W n2 V8 G( S5 W9 y
而在涉及两车相撞的另50%致命事故里,70%是侧撞和追尾,这里a和c是主要安全因素,车子质量仍然无关。下面的图表反应了这类碰撞时不同品牌车子的安全状况* i/ e( z" ~$ _" `7 K
Insurance Institute for Highway Safety (IIHS) are shown below. (see http://www.iihs.org/ratings.)4 T2 m9 C4 X" W' r6 p * K% P. Q' w8 l ) ]+ p$ K( }" {* Y# j% j$ b# ^外行看热闹的人飘过,楼上的各学科专家,各地农民请继续讨论。