Wisconsin Exhibits

W1 Yellow Light Flaw in One Page

Yellow Light Flaw in One Page

This simple document links the flaw of the yellow light to Wisconsin engineering malpractice, which means nonconformity to the Manual of Uniform Traffic Control Devices (MUTCD), which means red light cameras would operate illegally.

May 18, 2018
W2 Wisconsin Engineering Practice Statute

Wisconsin Engineering Practice Statute

443.01(7) requires a professional engineer to have the knowledge of mathematics and the physical sciences.

May 18, 2018
W3 Wisconsin MUTCD

Wisconsin MUTCD

4D.26(3) is a standard requiring the yellow change interval to be determined by engineering practice.

May 18, 2018
W4 Wisconsin Traffic Engineering Operations and Safety Manual

Wisconsin Traffic Engineering Operations and Safety Manual

The TEOPS manual section 4-2, page 4, tells traffic engineers to use the ITE equation, though it is not a standard.

May 18, 2018