The cross product calculations for the Styner-Lauder intersection are shown in the following table:

 

Summary of Cross Product Calculations: Styner-Lauder

Approach

LT (veh/hr) Opposing Through/Right (veh/hr) Cross Product
Eastbound 74 305 22,570
Westbound 82 230 18,860
Northbound 46 827 38,042
Southbound 88 604 53,152

In this case, all of the cross products are below the threshold of 90,000, and so no left turn protection will be included in the phasing design.