Complex sentence: The Red Line extends southeasterly on an elevated embankment structure about a half-mile (1 kilometer) west of the lakefront to Touhy Avenue then turns south along Glenwood Avenue to Morse station.
Split into simpler sentences: The Red Line runs southeasterly on an elevated embankment structure about a half-mile (1 kilometer) west of the waterfront. It extends to Touhy Avenue then turns south along Glenwood Avenue to Morse station.