La. Roads, Bridges and Ferries § 48:341

Current with changes from the 2024 legislative session effective on or before 7/1/2024, from Acts 2,3, 6-535, and 580-647
Section 48:341 - Channeling traffic by lines

In the interest of the safety and convenience of motor vehicle operation, appropriate geometric designs and traffic regulatory devices shall be employed to provide separate channels for the movement of vehicles traveling in different directions and to regulate the maneuvering of vehicles within and between these traffic streams.

La. Roads, Bridges and Ferries § 48:341