These turns are dangerous for the driver, pedestrians and oncoming traffic.
In fact, according to the latest highway safety data, 31% of all serious accidents involve left hand turns.
The percentage of right-hand turns that cause a problem?
Did you also know that all of the delivery routing programs for companies like UPS and Pepsi preclude left hand turns across traffic because early studies by MIT determined they were not only time-consuming but dangerous (and companies wanted to avoid the expense associated with their drivers being badly hurt and their trucks incurring substantial damage in the event of being struck by an oncoming vehicle).
Now fast forward to driverless cars. The engineers designing these modern marvels claim that “teaching” a driverless car to safely manage a left-hand turn is in fact one of their most difficult challenges facing product developers.
“How can that be,” you ask?