主题：【文摘】来自一个高速交警的忠告（强烈推荐） -- qianglu

It depends. Obervation is important. Walking through several lanes could be dangerous. Just not simply jump out and run. There were a family trapped inside a car in some highway. The members stepped out of the car one by one for shoulders, and they were all hitted by those rushing through cars. Staying inside so called 脆弱的好像纸糊的 car, in fact, is more or less safe. At least a car is much larger than a walking guy. Moreover, at night, flashing light could warn those passing by cars something ergent happened there. In case some blind drivers cannot find it in time, hitting from back simply damages the car. With the fasten belt, the driver still has high probability to survive.