Amtrak operates four pairs of trains on the Racetrack. The westbound and eastbound California Zephyr and Southwest Chief all converge on the Chicago Subdivision (if they are on time) in mid-afternoon. The two pairs of regional trains, Carl Sandburg (Nos. 381/382) and Illinois Zephyr (Nos. 380/383), which run between Chicago and Quincy, Ill., put in morning (Nos. 380 and 381) and evening (Nos. 382 and 383) appearances. All eight Amtrak trains stop at Naperville, and the four Quincy trains call at La Grange Road as well.
BNSF runs, on average, 50-plus freight trains in a 24-hour period on the Chicago Subdivision, depending on the day of the week, with volume building toward the weekend. BNSF trains include general freight, coal and other unit trains, and intermodals. The Chicago Sub splits west of downtown Aurora into the Mendota Subdivision to Galesburg, Ill., and the Aurora Subdivision to La Crosse, Wis., and the Twin Cities. Cicero’s former freight yard now is an intermodal facility; Eola, east of Aurora, is a general freight yard. A few Union Pacific trackage-rights intermodals also use the Racetrack.
The Chicago Subdivision goes under Canadian National’s former Elgin, Joliet & Eastern at Eola, over the Indiana Harbor Belt in eastern La Grange, and under the Belt Railway in a rundown part of Cicero.


