In late 2006 and early 2007, grade separation works at the Middleborough Road level crossing, near Laburnum, led to the closure of the line between Box Hill and Blackburn, and the construction of a temporary bus interchange at Blackburn, for buses which replaced train services. The car-park immediately to the north of Platform 3 was converted into an interchange, and a walkway was constructed to allow passengers to cross from the island platform to the interchange. Blackburn again performed this role in early 2010, when grade separation was undertaken at Springvale Road and Nunawading station was rebuilt, and again in 2014, when Mitcham Road and Rooks Road at Mitcham were separated.