With the removal of U Turns, trucks are no longer making left turns to deliver. They instead drive to the end of whatever road they are on (which can be very long!), make a U Turn at the end, and then drive all the way back to make the right hand turn. These roads are smaller 2 lane roads that I have Green and Blue buildings, so the idea is that trucks exit and enter the building right next to OR across from the building. But for across, the truck spends minutes traveling around where it should have spent a second.