44 and 55 all day, baby. 40 is only rough around Forest Park and 270 during rush hour. And when I say rough, I mean 5-10 minute delay. Which isn't much compared to other cities.
I went to college in Chicago. There's a magnitude order of difference between traffic here and traffic there.
St. Louis businesses are pretty distributed between the city and county so there isn't a huge downtown rush in the mornings and evenings. The most traffic you'll see downtown is when the Cards are playing.
