Something you don’t see very often is a UPS truck trying to make a left hand turn. The New York Times Sunday Magazine pointed out that by avoiding left hand turns where reasonable, UPS “shaved 28.5 million miles off its delivery routes, which has resulted in savings of roughly three million gallons of gas and has reduced CO2 emissions by 31,000 metric tons.” UPS uses a proprietary mapping solution they refer to as “package flow” software that maps out the routes of the roughly 95,000 drivers that take to the roads daily to deliver packages. The idea of reducing left hand turns when driving is catching on. The suggestion to make “one right turn after number” was item 45 on Time’s list of “51 Things You Can Do to Make a Difference” that was issued in April 2007 as part of their Global Warming Survival Guide.
The logistics software used is developed by Roadnet, a division of UPS. The software has its own website called UPS Logistics Technologies and sells to other companies such as Pepsi. The underlying mapping software streamlines routes by restricting and disabling left hand turns when determing routes of drivers.