In 2018, traffic was monitored by the South Carolina Department of Transportation at 11,672 locations throughout the state. The Berkeley-Charleston-Dorchester region accounted for 771 of those counting stations.

Overall, the regional system counted 200,025 more average daily trips than the 10,346,100 trips in 2017 for a total of 10,546,125 trips in 2018. All of the top five highest traveled non-interstate roads in the state are within the BCD region. A table showing the change in trips for these stations from 2017 to 2018 can be found below.