相反的情况同样令人沮丧，当绿灯通行方向没有任何车辆时，一个驾驶者却要在另一方向的红灯前等待数分钟。
Equally frustrating is the opposite extreme, where a driver sits at a red light for minutes even though there's no car in sight to take advantage of the intersecting green.
另一方面，通过在交通网络中添加新的路段来提高整个交通网络的通行能力。
On the other hand, we construct new road in order to increase the whole capacity of a road network.
一方面，许多简体字来源于中国草书的通行写法；
Many simplified characters are adaptations from common usage in Chinese cursive script;
一方面，许多简体字来源于中国草书的通行写法；
Many simplified characters are adaptations from common usage in Chinese cursive script;
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