The History of Left-hand traffic

The History of Left-hand traffic
靠左行驶的交通历史由来

我们都知道：在中国，车辆靠右侧行驶，有些国家却靠左侧（如英国、日本、印度、印尼、澳大利亚等）。据说在1800年代，英国的行人及马车使用同一条道路，当马车行驶在右侧时，车夫扬起的马鞭，会伤及行人。于是法令规定马车沿左侧行驶，延续至今。正如法令为了保护人安全，上帝的诫命也是为我们得益。保罗说：全部律法都包含在“爱人如己”这一句话之内。

另外一些历史说法是这样的：
The history of the keep-left rule can be tracked back to ancient Greece, Egypt and Rome, and was more widely practised than right-side traffic. Ancient Greeks, Egyptians and Romans adhered to the left side while marching their troops.
句解霸参考译文：靠左行驶的规则被广泛采用多于靠右行驶，它的历史可以追溯到古希腊、古埃及及古罗马。古希腊人、古埃及人以及古罗马人行军时奉行靠左的原则。
句子成分分析：“The history of the keep-left rule”是句子主语， tracked 为谓语，采用被动语态。practised 为谓语，采用被动语态。“while marching their troops”while引导状语从句。while后接延续性动词（指两个动作同时进行）

The keep-left rule was doubtless well-established in ancient Rome because of congestion in the city. 靠左行进的规则无疑是在古罗马时期由于人们对城市的拥戴而确立下来的。

Pilgrims who wished to visit the city were instructed to keep to the left side of the road. By the time the Pope ordered instructions to keep left of the road, this rule was already widely used.The regulation has been practised by some countries ever since.
朝圣者被指示要靠左行走，及至罗马教皇声明指示（赴罗马的朝圣者）要靠左行走，这规则已是被广泛采用。从那时起，靠左行进的规则也被世界上一些国家采用。

句解霸拓展知识 - 现代靠左向行驶的特点：
All traffic is generally required to keep left unless overtaking.
除了超车，一般情况下需要保持左侧行驶。
Oncoming traffic is seen coming from the right.
右侧会车。
Right-turning traffic must cross oncoming traffic.
右转车辆必须让行正向来车。
Most traffic signs facing motorists are on the left side of the road.
大部分交通标识位于面向驾驶员的左手路边。
Traffic on roundabouts (traffic circles or rotaries) goes clockwise.
环状交叉路口（转盘或回转）以顺时针方向运行。
Pedestrians crossing a two-way road look first for traffic from their right.
行人横过双线公路时需先观察右向来车。
Most dual carriageway (divided highway) exits are on the left.
大部分双向车道（分隔式公路）的出口在左边。
Other vehicles are overtaken (passed) on the right, though in some circumstances overtaking on the left is permitted.
其他车辆从右侧超车，但在某些情况下从左侧超车也是允许的。
Most vehicles have the driving seat on the right.
大部分车辆的驾驶席在右侧。
A left turn at a red light may be allowed after stopping.
在红灯处停下后是可以左转的。