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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: B5 V1 Q% m! _0 \
a) an effective restraint system (seat belts and airbags)4 [: x- |% ]6 l- s- s$ x3 ]5 a
b) effective energy absorption in the crush areas (front end or rear end)1 U7 p* y! A$ O8 t* H( P4 |
c) a strong cabin area that does not collapse in the crash- y- F' I0 O) G0 p
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.)1 @+ b% j3 I$ ]6 C$ m# T0 u$ ]) t $ V* K. {- G e5 n1 _" Q- f3 f6 c; ]/ }$ l; @" R
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: e% _: |7 y6 i7 x9 k* ~8 f
Insurance Institute for Highway Safety (IIHS) are shown below. (see http://www.iihs.org/ratings.) / G# I8 M* E' z: E% v, ]' Z C
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