AASHO Representation on NACUTCD and OTO-FHWA, A Study to Eliminate Cardinal Initials on Interstate Routes and Other Needed Changes in Interstate… (1973)
“ In the Quad-City area (Davenport and Battendorf, Iowa, and Rock Island and Moline, Illinois) , there exists three Interstate routes having various Interchange geometries which have caused serious traffic operation difficulties. The major difficulty is the cloverleaf Interchange southeast of Moline, Illinois, where I-80 traffic westbound is required to exit on the outer ramp of the cloverleaf to turn north and remain on I-80. Likewise the eastbound traffic on I-80 is required to exit onto the southwest loop of this Interchange to remain eastbound on I-80. ”
