#3 Who Are UPS?
United Parcel Service (UPS) is about 110 years old. Their existence can be attached to their work efficiency and quality of service, but not as important as far-sighted business sense and attention to detail

#2 The Strange Rule
UPS introduced this policy in the mid-1970’s. The “Don’t turn left policy†raised a question as nobody saw its relevance. But for UPS, it proved to be their most efficient move to send across their packages in a more economical way.
In most countries that have a left-hand drive, whenever the van would turn left, it would go against the flow of the traffic and jam the roadway. The vehicle would often have to wait at junctions for traffic to clear which was costly as fuel charges go up and time consumption is high.
So, don't you want to know what exactly is the policy and the effects of the policy? Just go ahead and find the answers yourselves!

#1 The Actual Policy and its effects
They’ve built a device called the On-Road Integrated Optimization and Navigation (ORION) which is a vehicle navigational system that gives the drivers the special route with minimal left turns.
With the help of this, the company has not only saved 10 million gallons of fuel per year but also shortened the duration of travel by six to eight miles on an average.
As not all left turns can be avoided, the UPS drivers use the left-turns 10 percent of the time, especially in rural areas. This policy is a good technique for any driver to follow when looking to dodge traffic!