Complex sentence: Four new tunnels would replace the "Schwarzkopftunnel": "Falkenbergtunnel", "Hirschbergtunnel", "Metzbergtunnel" and "Haintunnel".
Split into simpler sentences: Four new tunnels would replace the "Schwarzkopftunnel". The names for these new tunnels are "Falkenbergtunnel", "Hirschbergtunnel", "Metzbergtunnel" and "Haintunnel".