I have driven through Atlanta twice. Once late morning.. Posted speeds
Once evening (Say 5-7 PM) Well I was reminded of an Episode of the TV show McMillan and wife
Mac to driver: How far to (Where they were going)
Driver "At this rate a couple of hours"
Mac: How long if we walk
Driver: A few minutes it's in the next block
Mac: Pick up up.
Yup, I could have walked faster