It may be a problem for car drivers and cyclists to share the same road. What are the problems and how to improve the situation?
题目大意
汽车司机和骑自行车的人共用一条路可能会出问题。存在哪些问题，如何改善这种情况？
写作思路解析
在所有对安排汽车司机和骑自行车的人都可以使用的道路的担忧中，安全问题排在首位。如果两者之间发生事故，那些骑自行车的人应该会受到重伤。与那些仅限车辆通行的道路不同，混合交通意味着用户遵循不同的驾驶特性。汽车行驶平稳，但司机的视力可能会如此有限，因为他们坐在驾驶室的角落里；另一方面，自行车总是灵活的，骑自行车的人很少意识到前者不能像他们一样容易操纵他们的车辆。糟糕的情况可能是，当自行车刚刚离开司机的视线时，汽车会突然掉头：如果铁器和人体之间发生碰撞，显然哪一方的麻烦会更大。类似这样的悲剧在世界各地屡见不鲜。
到目前为止，仍然没有合理的解决方案；解决这个问题的好的方法，比如完全分离两种交通方式，对城市规划者来说似乎太昂贵了，因为他们需要安排不同的路线，去往整个城市的相同目的地。然而，事实证明，某些调整对缓解这种情况是有效的。建议在大多数道路上为自行车留出一条车道，通过这条车道，骑自行车的人可以通过交通栏杆与车辆隔离。至于经常发生小汽车和自行车相撞的十字路口，有必要在红绿灯上建立更明智的配时系统-一次只允许一种类型的交通通过-以避免两者相遇。
提纲
写作示范
I would discuss in this essay about unfavorable consequences brought by the scenario where cars and bicycles jointly use the same roads and the possible solution to better the situation.
Among all the concerns toward the arrangement of a road available for both car drivers and cyclists, safety problems rank the top. Those who ride a bike should have got severely hurt if there were an accident between the two. Unlike those vehicle-only roads, the mixed-traffic means that users follow different driving properties. Car travel smoothly, but the drivers can be so limited in their eyesight because of sitting in a corner of a driving cab; on the other hand, bicycles are always flexible, and cyclists seldom realize the former cannot manipulate their vehicles easily as them. The worst-case may be the scenario where cars would turn round in a sudden when the bicycles are just out of the sight of the driver: should crashes emerge between the iron machines and human bodies, it would obvious which side could be more in trouble. Tragedies akin to this happen all around the world frequently.
Till now, there are still no rational solutions to this; the best ways of addressing the problem like totally separating the two types of traffic modes seem too expensive for city planners since they need to arrange different routes to the same destinations across the city. However, certain adjustments are proved effective to ease the condition. It is recommended to spare a vehicle lane for bicycles on most of the roads, through which cyclists can be isolated from the vehicles via traffic rails. As for the crossroads where the crashes between cars and cycles happen frequently, a wiser timing system on traffic lights-to permit only one type of traffic to go through at a time- is necessary to avoid the two from meeting one another.
In conclusion, disasters happening on the road because the complicated traffic modes are one of the problems caused by mixed traffic, and we should certainly call for a road rearrangement to prevent tragedies.
