Precisely. The maps icon has basically taken the on-ramp for the highway and abstracted it away for simplicity. Because there actually is an on ramp that you tu

Precisely. The maps icon has basically taken the on-ramp for the highway and abstracted it away for simplicity. Because there actually is an on ramp that you turn left onto after the overpass this icon is accurate. If they had included the amount of detail shown in the second accurate picture on the link it would look completely cluttered and amateur.