A new national study from the American Transportation Research Institute confirms that two particular freeway intersections in the Phoenix area are ranked among the “2020 Top Truck Bottleneck List" and are rated among the 100 worst areas for congestion in the country.
1. The intersection of Interstate 17 and Interstate 10 (ranked 30th). Average traffic speed in that area over a 24-hour period is only 42.8 mph, dipping to 34 mph between 7 and 8 a.m. and only about 22 mph between 4 and 6 p.m.
2. The intersection of Interstate 10 and the U.S. 60 (ranked 69th). Average speed in that area over 24 hours is somewhat better than the 1-17/I-10 intersection, at 47.7 mph. Traffic speeds along I-10 at U.S. 60 drop to about 32 mph between 7 and 9 a.m. and average about 37 mph between 3 and 6 p.m. Traffic speeds in this area were 3.3% slower than a year ago, the study reported.