Four-lane undivided highways experience relatively high crash frequencies — especially as traffic volumes and turning movements increase over time — resulting in conflicts between high-speed through traffic, left-turning vehicles and other road users. FHWA has deemed Road Diets a proven safety counterm...
A center lane with a regular broken yellow line and a solid yellow line on each side indicates atwo-way left-turn lane. This lane is for traffic in either direction as part of a left-turn maneuver. The broken yellow line is inside a two-way left-turn lane, and the solid line is pa...