How the two crossings differ
The Causeway is the older, central crossing between Johor Bahru and Woodlands. It is the shorter route for goods collected in Johor Bahru, Pasir Gudang or the east of Johor, and for deliveries to the north and centre of Singapore.
The Second Link joins Gelang Patah to Tuas in the west. It is the more direct route for Iskandar Puteri, Gelang Patah and Pontian, and for deliveries to Tuas, Jurong, Pioneer and western Singapore.