From Interstate 494 to State Highway 100, the lanes of I-394 are separated from traffic by double white lines. Between State Highway 100 and Interstate 94/US Highway 52 near downtown, the two lanes are combined into a reversible expressway in the median that is separated from the eastbound and westbound lanes by concrete barriers. This segment changes directions to accommodate the traffic flow at different times of day, so in the morning, it is open to downtown-bound eastward flowing traffic, while it is open to westbound traffic in the evening.