City Direct Bus 663 – Tower Transit Alexander Dennis Enviro500 (SMB3552P) City Direct Bus 663 – Tower Transit Alexander Dennis Enviro500 (SMB3552P) City Direct Bus 663 – Tower Transit Alexander Dennis Enviro500 (SMB3552P)
17 May 2024 - 31 October 2025 Bus Service Diversion for Early Closure of Jurong West Avenue 4 for JRL Works