RandstadRail line E

RandstadRail is a public transportation rapid transit network in the southern part of the Randstad conurbation in the west of the Netherlands, connecting The Hague, Zoetermeer and Rotterdam. The network mainly uses former train and existing tram tracks, with a new flyover in The Hague and a new tunnel in Rotterdam. RandstadRail is a hybrid system of low-floor tram-train-like carriages used between The Hague and the city of Zoetermeer, and high-floor metro/subway-like carriages between The Hague and Rotterdam. The stations used by both lines have extended platforms with a high and a low part. Moreover, the network includes two bus lines.

Line E of the Rotterdam Metro, formerly called the Erasmuslijn, runs for a great part on the former Hofpleinlijn railway line between Den Haag Centraal station in The Hague and Hofplein station in Rotterdam. It was opened as a RandstadRail line in September 2006, running at the time between Nootdorp and Hofplein until it was extended to The Hague in November of that year.

As part of the line's conversion to RandstadRail operation, it began using RET metro trains (retaining some level crossings), more stops were added and train frequencies increased. Although the conversion was not flawless, with both a series of technical problems and a derailment, the line has been in full metro-like operation since September 2007.

Rotterdam Hofplein terminus was replaced in 2010 with a bored tunnel connecting the line with the local metro network at Rotterdam Centraal railway station. In December 2011, the line was extended to Slinge metro station in the south of Rotterdam, sharing the section between Rotterdam Centraal and Slinge with the already existing metro line D, thus having its terminus in the town of Spijkenisse, southwest of Rotterdam. The metro line runs every 10 to 15 minutes.

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