Overall, the RC3 project will result in minor increases in traffic on Langhorne Manor’s Gillam Avenue. It is anticipated that traffic will redistribute along Gillam Avenue at each intersection based on driver destinations. Based on updated PennDOT traffic analysis completed in 2024, AM peak hour traffic is projected to see a 29% increase, which is an average increase of 50 vehicles per intersection for the nine (9) intersections studied along Gillam Avenue, and the PM peak hour is anticipated to see a 17% increase, which is an average increase of 35 vehicles per intersection for the nine (9) intersections studied along Gillam Avenue. Almost all this increase is expected be east of the intersection with West Interchange Road, with the largest increase occurring at the intersection with Pine Street due to the new interchange. It is expected the increase will be mostly local traffic that previously used the Frontage Road now traveling to the newly constructed interchange. Operationally, the most affected stop-controlled intersections are projected to still operate with minimal delay. At the same time, the internal neighborhood roads will see a decrease in cut-through traffic as traffic is redistributed onto the collector and arterial roads. PennDOT is also investigating additional traffic-calming treatment options along Gillam Avenue.