What is the number of conflict points in a three-leg intersection?

In a three-leg intersection, the number of conflict points can be calculated based on the interactions between the various movements at the intersection. Each leg of the intersection can have vehicles traveling straight, turning left, or turning right.

At a typical three-leg intersection, there are three directions from which vehicles can approach: from the north, south, and east. It is essential to consider the following types of movements:

1. Vehicles going straight through the intersection.
2. Vehicles turning left from each leg.
3. Vehicles turning right from each leg.

For a three-leg intersection:

• Each leg contributes movements that can conflict with movements from the other legs.
• Each left turn can conflict with oncoming straight traffic.
• There are right turn conflicts with pedestrians or traffic moving straight.

By considering the combinations:

1. Each leg can experience left turn conflicts with the opposing leg.
2. There are also conflicts with right turns from all three directions as they can intersect paths with the movements of vehicles going straight.

The total number of conflict points is then computed, taking into account these interactions. The proper calculation reveals that there are a total of 9 conflict points in a three-leg intersection:

• Each direction has one straight movement.
• Each left turn from