RandstadRail is a public transportation network in the southern part of the Randstadconurbation 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 suburb of Zoetermeer, and high-floor metro-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, formerly called the Erasmuslijn, runs for a great part on the former Hofpleinlijn railway line between The Hague central station and Rotterdam Slinge, operated since November 2006 by RETmetro trains. At the time of the conversion to metro-like operation (retaining some level crossings) more stops were added and 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 has been replaced in 2010 by a tunnel to connect 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. The metro line stops once every 10 minutes.
RandstadRail includes four tram lines; line 2 from The Hague to Leidschendam, lines 3 and 4 from The Hague to Zoetermeer, and line 19 from Leidschendam to Delft. These lines are operated by HTM and use RandstadRail's Citadis vehicles rather than HTM's older GTLs. Lines 2 and 19 are only temporarily RandstadRail lines; they will leave the network upon the arrival of HTM's new tram vehicles in 2014. Lines 2, 3 and 4 stop once every 10 minutes during daytime, on Monday to Saturday. On Sundays, as well as in the evening, they stop once every 15 minutes. Line 19 stops once every 15 minutes, even during daytime.
Kraayensteinlaan - Kapelaan Meereboerweg - Loosduinse Hoofdstraat - Burgemeester Hovylaan - Buitentuinen - Walnootstraat - Thorbeckelaan - Nieuwendamlaan - Laan van Eik en Duinen - Kamperfoeliestraat - Valkenboslaan - Fahrenheitstraat - De La Reyweg - Monstersestraat - MCH Westeinde - Brouwersgracht - Grote Markt - Spui - Centraal Station - Ternoot - Oostinje - Stuyvesantstraat - Station Laan van NOI - Bruijnings Ingenhoeslaan - Mgr. van Steelaan - Prinses Beatrixlaan - Voorburg 't Loo - Elzendreef - Essesteijn - Leidsenhage - Burgemeester Kolfschotenlaan - Kastelenring - Dillenburgsingel
In December 2012, two bus lines were added to RandstadRail. These so-called ZoRo-bus lines, line 170 and line 173, run between Zoetermeer and Rotterdam. A new bus lane was constructed between the two cities for the project. The buses are operated by the RET and stop thrice an hour.