A technology alternative to the VAL system on the O'Hare airport transit system (OATS) (or: converting OATS to CORN)

A steel wheel/rail technology based on the Chicago Transit Authority's rapid transit system has been postulated as a possible replacement for the existing VAL rubber tire on the O'Hare airport transport system (OATS). The replacement technology is dubbed the Chicago O'Hare rail network, or CORN. Replacement of VAL may be justified when the current VAL system reaches a point of needing a major overhaul and/or when major extensions are planned for the system.