It sounds counter-intuitive, but through the use of navigation systems, companies like UPS have proven that having their drivers avoid turning across traffic (turning left in countries that drive on the right-hand side of the road, and right for countries that drive on the left) saves them time and money in fuels costs, while also reducing accidents.

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Typically, one would expect delivery drivers to take the shortest route possible. However, turning left in traffic causes delays for the drivers (and everyone else around them) by increasing the chances of having to wait out traffic signals through multiple cycles and also significantly increasing the risk of accidents. You are ten times more likely to get in an accident while turning left than while turning right.

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In 2012, the right turn rule, combined with other improvements, saved UPS around 10 million gallons of gas and reduced emissions by the equivalent of taking 5,300 cars off of the road for a year. By 2017, when UPS has fully implemented their newest navigation system (Orion), providing mapping for drivers of more than 55,000 US routes daily, expected savings are between $300 and 400 million per year.

While individuals may not see proportional savings in fuel and costs, reducing the chance of accidents by changing routes is certainly worth consideration.

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