The American Transport Research Institute recently published its list of Top 100 Truck Bottlenecks for 2023 and the Conshohocken Curve (which includes the intersection of I-76 and I-476) ranked 80th. Other nearby areas on the list are I-76/I-676 at 29th, I-76/US 1 at 38th, and I-95/I-476 at 44th. The top bottleneck in the nation belongs to the intersection of I-95 at SR 4 in Fort Lee, NJ. You can find the methodology here.

The list came with statistics for each intersection that drove its score. The Conshohocken Curve statistics are as follows:

Average Speed 47.4
Peak Average Speed 41.8
Nonpeak Average Speed 49.8
Nonpeak / Peak Ratio 1.19
Peak Average Speed Percent Change 2021 – 2022 -5.3%

Below is a graphic from the institute that shows the average speeds throughout the day.