How should roadway intersections be modeled?
Two accepted methods exist for modeling intersections in TNM: (A) modeling roadways that stop short of and restart after an intersection, and (B) modeling a complex series of intersecting roadway segments. Both methods produce comparable sound level results at receivers that are not directly adjacent to the intersection being modeled. However, method (A) is much less complex and easier to model, whereas method (B) provides more accurate results at receivers directly adjacent to the intersection. It is up to the individual TNM user to determine which modeling method might be most beneficial to their modeling project.
