Complex sentence: Northbound WCML services usually pass the station on an avoiding line, away from the platform, but northbound services coming off the chord from Edinburgh (ECML and Cross Country) will always pass platform 1.
Split into simpler sentences: Northbound WCML services usually pass the station on an avoiding line, away from the platform. But northbound services coming off the chord from Edinburgh (ECML and Cross Country) will always pass platform 1.