A four-minute train that clears both countries' immigration before you board — here's what's confirmed, what isn't, and why it matters more than any bus or lane tweak.
Almost everything else on this site is about surviving the crossing as it exists today — which lane, which checkpoint, which hour hurts least. The RTS Link is the first thing on the horizon that changes the crossing itself, rather than helping you time it. It's a short cross-border train, and the part that matters isn't the ride — it's that you clear both countries' immigration before you get on, so there's no queue on a bridge to sit in at all.
It isn't running yet, and a couple of the numbers people quote for it aren't official. Here's the honest version — what's confirmed, what's still a target, and what's a guess.
The Rapid Transit System (RTS) Link is a 4 km cross-border rail line connecting Woodlands North station in Singapore to Bukit Chagar station in Johor Bahru. The train journey between the two is about five minutes. At peak, the line is built to carry up to 10,000 passengers per hour in each direction — roughly the throughput of a busy expressway lane, moved onto rail. On the Singapore side, Woodlands North connects directly to the existing Thomson-East Coast Line (TEL) station at Basement 1, so it plugs straight into the MRT network rather than stranding you at the border.
It's operated by RTS Operations Pte Ltd (RTSO), a joint venture between Singapore's SMRT Corporation and Malaysia's Prasarana Malaysia — the same operator model as a normal metro line, not a coach service or a KTMB train.
Source: Land Transport Authority's own RTS Link project page (checked 8 September 2026), cross-checked against LTA's 4 September 2026 announcement that the Woodlands North station structure is now complete. The two agree on every figure above.
The thing that makes every existing crossing slow isn't the distance — it's clearing two separate immigration checks, often with a road queue wrapped around them. The RTS Link is designed to remove that entirely with co-located CIQ: Customs, Immigration and Quarantine facilities for both countries sit at the departure station, and you clear both Singapore and Malaysia authorities before you ever board. You don't get off halfway to queue again. Compare that to the KTM Shuttle, where the five-minute ride is genuinely quick but the immigration hall on either side is still where the time goes — the RTS moves that clearance to before departure by design.
That's the structural change. It doesn't magically empty the Causeway of cars — drivers, buses and the fuel-check rules all continue exactly as they are. What it does is give foot and rail passengers a route that skips the road jam completely, which over time pulls a meaningful slice of pedestrian and bus traffic off the bridge.
This is the part to be careful with, because the "opening date" has been a moving target and different sources say slightly different things. LTA's own project page states a target of end of 2026. Singapore's Parliament referenced December 2026 during the May 2026 reading of the Cross-Border Railways Bill. Reporting around the 4 September 2026 completion of Woodlands North station describes it as slated for passenger service in 2027 as systems testing continues.
The honest read across all three: it's close — stations are structurally done and testing is underway — but "close" here means the turn of 2026 into 2027, not a fixed date you can book a trip around yet. Treat any specific day you see quoted as provisional until the two governments announce a firm launch, and don't build a commute plan on it landing exactly on time.
There is no official fare. As of mid-2026 the proposed fare structure was still due to be submitted to both governments for approval, and until that's approved and published, any figure is an estimate. The numbers floating around third-party sites — roughly S$5 to S$7 one way — are unconfirmed projections, not a published price, and we won't state a fare as fact here until an official one exists. If you see a confident-sounding exact fare quoted somewhere right now, that's someone's estimate wearing a suit.
Nothing, yet — and that's worth saying plainly. Until the RTS actually opens, your real options are the same ones covered across the rest of these guides: the KTM Shuttle, the CW and SBS cross-border buses, a cross-border taxi, or driving with a VEP. The RTS is the reason the KTM Shuttle has a stated end date rather than a permanent one, but the shuttle is still running today, and the buses aren't going anywhere. Plan around what's live now; treat the RTS as the thing to switch to once it's genuinely open, not before.