Why do some countries drive on the left and others on the right?

Have you ever sat successful a car and assumed the operator should beryllium sitting connected the close side? In India, that feels normal. But question to countries similar the United States, France, oregon Japan, and you’ll announcement thing surprising, either the driving spot oregon the broadside of the roadworthy changes!

So wherefore does this happen?

Believe it oregon not, the reply goes backmost hundreds of years back, agelong earlier cars adjacent existed. It has to bash with swords, horses, and aboriginal assemblage regularisation and planetary influence.

Medieval habits that shaped traffic

This behaviour goes backmost to the clip erstwhile determination were horses and radical walking. Most radical were close handed, particularly knights and soldiers. They preferred to enactment connected the near broadside of the roadworthy truthful their sword limb faced anyone coming from the other direction. This made it easier to support themselves and besides kept their close manus escaped to greet idiosyncratic oregon shingle hands.

Riders besides mounted and dismounted their horses from the left, arsenic horses were trained that way. Staying connected the near made this safer and much convenient.

Over time, this wont turned into a communal practice, past an unwritten rule, and aboriginal an authoritative instrumentality successful galore places. This aboriginal contented is simply a large crushed wherefore immoderate countries inactive thrust connected the near today.

The shift: How close broadside came into practice

Before the French Revolution successful the precocious 1700s, nobles successful France travelled connected the near broadside of the road. After the revolution, mean radical wanted to region themselves from thing associated with the nobility, truthful they gradually began walking and riding connected the close side. Later, Napoleon made right-side question a instrumentality successful the territories helium controlled. His power dispersed crossed the regions helium conquered, and countries similar Spain, Italy, Belgium, Poland, and the Netherlands adopted the right-side rule. Meanwhile, places not conquered by Napoleon (like Britain) continued driving connected the left.

America’s wagon problem

In the USA, ample freight wagons were pulled by aggregate horses, and the drivers sat connected the near rear equine alternatively than wrong the carriage. To amended spot oncoming postulation and debar collisions, they kept to the close broadside of the road. Industrialisation strengthened this habit—mass accumulation of cars placed the steering instrumentality connected the near side, making right-side driving much practical. This plan prime helped dispersed right-side driving worldwide.

Why India stayed left

India, being a large British colony, adopted the left-side driving rule. From the aboriginal days, railways, roadworthy rules, and imported vehicles followed British standards. This strategy became profoundly established, and switching sides aboriginal would person been costly and dangerous.

Because of this, galore erstwhile British colonies, specified arsenic Australia, New Zealand, and South Africa, continued driving connected the near arsenic well.