10 US cities with the worst traffic jams
Average commute during worst driving hours: 33 percent longer on Friday at 5:30 p.m.
This Bay State city is at its worst on I-93 between Exit 5 and Exit 15. This 10.4-mile stretch of road usually takes 10 minutes to complete with no traffic, but can take 29 minutes during rush hour and even up to 38 minutes Wednesday mornings.
Pictured: Traffic on I-93 north in Milton.