| A | B |
|---|
| Traffic Circle | when several road-ways meet at a circle. |
| Point-Of-No-Return | when you can no longer stop safely without entering the intersection. |
| Controlled Intersection | Intersection in which traffic signals or signs determine the right of way. |
| Stale Green Light | Light that has been green of a long time. |
| Fresh Green Light | A light that has just turned green. |
| Unprotected Left Turn | A signal-controlled intersection that does not have a special left-turn light. |
| Protected Left Turn | When a special left-turn light, green arrow, or delayed green light lets you turn left while oncoming traffic is stopped. |
| Delayed Green Light | Indicates that one side of an intersection has a green light while the light for the oncoming traffic remains red. |
| Controlled Railroad Crossing | Has Red lights along with crossing gates. |
| Uncontrolled Intersection | Has no signs or signals to regulate traffic |
| Uncontrolled Railroad Crossing | Has no Red light or crossing gates. |
| Gap | Distance between vehicles. |
