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Light Rail Transport (LRT)   [ 264 cities presented here ] (most recent entries: Jun, 27th, 2018)

LRT definition includes a wide range of applications, from classic tram to fast tram (metrotram). It appears correct to intend as properly said LRT systems those mass rapid transit systems which couldn't be classified as typical metro, not having a fully segregated track. They often present a combination of mixed traffic, reserved and segregated sections (e.g. short underground or viaduct segments); LRT systems are operated with tram o tram-like rolling stock.
The typical modern tram is a guided transport system which runs ground level (on reserved lanes or in mixed road traffic); in comparison with the traditional tramways, the modern ones assure higher commercial speed and higher capacity, thanks to an increased protection of its lanes (which can be partly reserved or segregated) in order to reduce its interferences with private cars and pedestrians. Each one of the major tram system producers tried to razionalize their market production by the development of the so-called "tram standard", a modular kind of vehicle easy to be adapted to the specific requirements of each purchaser. One of the distinguishing elements between the different models is the internal floor height referred to the rails level. Some of the modern trams (partial low floor) are more similar to the traditional ones, with the bogies able to rotate regards the car-body; in the traditional tramways, the floor height was up to 900 mm, in the modern partial low floor trams it's about 600 mm over the bogies, while it's only 350 mm in the rest of the vehicle (boarding zone included). A more innovative concept characterizes the full low floor trams, whose floor is about 350 mm height in every part of the car, due to the adoption of particolar bogies fixed to the carbody; the insertion of the vehicle in the curves is obtained thanks to suspended intermediate cars located between every two cars on bogies. Partial low floor trams generally maximize the cinematic performance and the cars durability, while full low floor trams assure a whole easy approachability in every part of the vehicle. Almost every modern tram model offers the double option of the mono and bi-directional type; the latter are more flexible (central and side platforms stops are both possible) but they must renounce at some seats in both side of the doors.

The so-called "tram on tyres" are a particular kind of LRTs/trams; they are also (and more correctly) called "intermediate systems" mixing trolleybus and tram features. The concept of tram on tyres is very recent and derives from the research of a flexible and reversible vehicle, which works mostly in guided mode (in order to maximize the system capacity, the performances and the minimization of the dynamic envelope) but able to switch in trolleybus mode, or, in some cases, running in the road traffic with autonomous power supply (batteries, diesel engine, etc.) like a normal bus. This feature could be very important in the ancient city centers of many towns, characterized by narrow roads and by pre-existing elements (e.g. buildings, monuments, etc.) which cause difficulties in the insertion of heavy infrastructures (such as the ordinary tram rails). Tram on tyres can be classified in order to their guidance system (mechanical guidance by a central monorail,optical guidance,magnetical guidance); at the present date, only the mechanical guidance systems seems to have a real diffusion, while the virtual guidance ones (optical or magnetical) encountered remarkable problems since their first applications.

The so-called "tram-trains" are another particular kind of LRTs/trams; their concept derives from the intention to integrate suburban railways (pre-existing lines which connect the urban centers with the districts areas) and tram lines (running inside the urban perimeter). This requires some fundamental common features between tram and local railway network, first of all the adoption of the same rail gauge. If the tram and the railway network have a different voltage, it's necessary the adoption of dual voltage vehicles, able to run both in tram mode (normally with 600/750 V DC overhead power supply) and in train mode (e.g. 15/25 KV AC if the line is electrified or with diesel autonomous power supply if the railway isn't electrified). Karlsruhe Stadbahn (Germany) is an emblematic case of properly said tram-train, with trams equipped with on-board inverters in order to switch from tram mode (750 V DC) to train mode (15 kV AC) and viceversa; this dual voltage cars share part of their route with suburban and regional ordinary trains. Kassel system (Germany) shows another interesting feature: the adopted rolling stock is able to run along the unelectrified railway sections switching from tram electric voltage (750 V DC) to an autonomous diesel power supply. In some other cases, the tram network simply reuses or incorporates some dismantled or under utilized railway tracks (e.g. Manchester Metrolink), without any real tram-train track sharing operations.
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News 2010
  • Dec 10
  • - Kazan: Kremlyovskaya-Koz'ya Sloboda metro extension opened on 30-12-2010
  • - Saint Petersburg: Obvodnyi Kanal stop (metro Line 5) opened on 30-12-2010
  • - Athens: Ag. Paraskevi stop (metro Line 3) opened on 30-12-2010
  • - Bursa: Bursaray LRT line extended from Kucuk Sanayi to Ozluce on 24-12-2010
  • - Venice: the first section Sernaglia-Favaro Monte Celo (6.3 km) of a tram-on-tyre Translohr line opened on 21-12-2010
  • - Kharkiv: Alekseevskaya metro line extended from 23 Serpnia to Oleksiivska on 15-12-2010
  • - Kiev: Lybidska-Vasylkivska metro line (Line 2) extended from Kurenivsko to Chervonoarmiyska on 15-12-2010
  • - Zurich: Glattalbahn tram line extended from Auzelg to Stettbach on 12-12-2010
  • - Bern: the so-called Tram Bern West extension (Kaufmannischer Verband-Bumpliz/Brunnen) of the tram network opened on 12-12-2010
  • - Mulhouse: tram Line 3 (Gare Centrale-Lutterbach) and a new tram-train line from Gare Centrale to Thann opened on 12-12-2010
  • - Toulouse: the new T1 tram line (Arenes-Garossos Aeroconstellation) opened on 11-12-2010
  • Nov 10
  • - Copenhagen: the delivery of the system technology and the metro cars of the future M3/M4 automated metro line (Circle Line) has been assigned to Ansaldo on 24-11-2010
  • - Istanbul: metro extended from Sanayi to Seyrantepe on 11-11-2010
  • Oct 10
  • - Wien: metro U2 extended from Stadion to Aspenstrasse on 02-10-2010
  • Aug 10
  • - Lyon: Rhonexpress LRT line opened on 09-08-2010 connecting Part Dieu to Saint Exupery Airport
  • Jul 10
  • - Athens: Holargos stop (metro Line 3) opened on 23-07-2010
  • - Le Havre: contract signed with Alstom for the delivery of 20 Citadis vehicles for the new tram line
  • - Barcelona: metro L2 extended from Pep Ventura to Barcelona Pompeu Fabra on 11-07-2010
  • - London: Gatwick Airport APM (Terminal-North Terminal) reopened on 01-07-2010 after the completion of its renewal
  • Jun 10
  • - Barcelona: driverless metro L9/10 extended from Bon Pastor to Sagrera on 26-06-2010
  • - Bergen: Line 1 (LRT) first section Byparken-Nesttun opened on 22-06-2010
  • - Moscow: Trubnaya-Marina Roshcha extension of metro Line 10 opened on 19-06-2010
  • - Alicante: Mercado-Luceros and Sangueta-Puerta del Mar tramway network extensions opened on 18-06-2010
  • Apr 10
  • - Venice: Venice People Mover (Piazzale Roma-Tronchetto) opened on 19 April 2010
  • - Barcelona: driverless metro L9/10 extended from Can Peixauet to Bon Pastor/Gorg on 18 April 2010
  • Feb 10
  • - Florence: the first tram line (T1: Florence S.M. Novella-Scandicci) opened on 14 February 2010
  • - Douai: the first phase (from Guesnain Bougival to Douai-Citè Technique) of a new tram-on-tyres line opened on 08 February 2010
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