West of Washington Blvd and 2600 North
There is a very short distance between the 40 mile/ hour and 55 mile / hour signs and if you are speeding up after the 40 mile /hour sign to meet the 55 mile / hour speed you will be speeding. The distance between the two signs is only about 150 yards.
From Washington Blvd to the 40 mile / hour sign is about 100 yards. Before this I assume is 30 miles / hour.
The police will sit at about the 55 mile / hour sign and if are picking up speed to meet the 55 mile / hour before the sign you will be ticketed.