2012 UPDATE Peter A. Allain, PE Louisiana Department of Transportation and Development.

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Presentation transcript:

2012 UPDATE Peter A. Allain, PE Louisiana Department of Transportation and Development

WHAT’S NEW Law on TWLTL highways Law on Chief Engineer Orders Speed Limits Speeds and Lane Widths

New Act 520 on TWLTLs Louisiana Revised Statute 32:83 Driving on highways with two-way left-turn lanes and dedicated left-turn lanes A.(1) The department may designate two-way left-turn lanes along segments of highways and may designate dedicated left-turn lanes on highways at intersections.

(2) A highway with two or more lanes in each direction and with a designated two-way left-turn lane shall be considered a divided highway with separate roadways. (3) A two-way left-turn lane is a lane near the center of the highway for use by vehicles making left turns in both directions to and from connections on both sides of the highway. At an intersection, the department may designate the two-way left-turn lane as a dedicated left-turn lane.

C. A vehicle in a dedicated left-turn lane at an intersection shall turn at the intersection only as designated by posted pavement marking, signing, or traffic signal indication. D. Vehicles shall not be driven across dedicated left-turn lanes at intersections or across areas delineated with pavement markings consisting of solid lines and filled in with diagonal striping. A vehicle may be driven across a two-way left-turn lane.

New Act 496 on Speed CEOs RS 32:2(A)(3) All orders issued by the department relative to the determination of a maximum or minimum speed limit on a highway or weight limit on a bridge shall be published on the official website of the department. Any such order issued by the department shall become effective upon the erection of signs on the affected highway or bridge.

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Tools to Control Speed Design Factors that Affect Driver Speed on Suburban Arterials, K. Fitzpatrick, TTI, June Narrow Lane ≈ Lower Speed Width, ftSpeed, mph

Questions? Contact Information: Peter Allain, PE, PTOE (225) References: