There are three parameters for a vehicle's crash safety. First we think of mass and inertia. But even more important can be the strength of the materials and geometry. This is why Smart cars have done so well in crash tests and open wheel racecars can take such forces. There is a major push for more bike lanes and restrictions on cars in urban areas. The international standard for minimum vehicle seat height is 19 inches. Speed limits and shoulder width help make for recommended bike routes. Still there is no substitute for being visible and predictable what ever you drive. Know and follow area traffic laws.
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