Code of Alabama
Part 3 - Motor Vehicles and Transportation.
Section 45-24A-32.11 - Placement of Traffic-Control Devices and Timing of Lights.

The placement of traffic-control devices and timing of yellow lights and red light clearance intervals, adopted by the city, shall conform to the most recent edition of the Traffic Engineering Handbook. It shall be presumed that the city is in compliance with this section unless the contrary is shown by a preponderance of the evidence.