It is learnt that the options for the RTS rail network include building a bridge or an undersea tunnel across the Johor Straits.
Malaysian Foreign Minister Datuk Seri Anifah Aman said a study on the project was carried out in November last year and both countries have 12 months to decide on the findings.
Phase one of the joint engineering study (JES) was to identify the alignment and station options with detailed assessment for the RTS.
Anifah was speaking to reporters before the two-day visit to Singapore of Malaysian Prime Minister Najib Tun Razak starting 18 February 2013. The retreat features Razak and his Singaporean counterpart Lee Hsien Loong, with the RTS being among the main topics of their discussion.
Singapore had earlier announced that its Thomson mass rapid transit (MRT) line would be opened in stages from 2019.
The 30km line will run through the north-south corridor of the island republic, starting in Woodlands, the area closest to Johor Baru via the Causeway. It will pass through industrial, residential and shopping districts before ending at Marina Bay.
The whole SGD 18bn (USD 14.5bn) line will be completely underground and is expected to serve 400,000 commuters daily.
