The National Academies Press

Currently Skimming:

Pages 6-22

The Chapter Skim interface presents what we've algorithmically identified as the most significant single chunk of text within every page in the chapter.
Select key terms on the right to highlight them within pages of the chapter.

From page 6... ... Since TCRP Report 2 was written, the Skoda Astra Streetcar has been introduced in the United States; this is a threesection articulated LRV with a low-floor center section. It is a Category 1 vehicle because the center section has no wheels suspended from the end sections through the articulation and is, therefore, outside the scope of this study. Read the entire page →
From page 7... ... Use of the T2 and T3 categories of independent wheel center trucks is widespread and has been a sales success for various manufacturers. This type is generally regarded as having lower Read the entire page →
From page 8... ... 8 Year introduced Builder Model Number built Center truck type Wheel arrangement Sections Where used Sharyo Bergen, Newark, Santa Clara 2000 Ansaldo- breda T69 16 T3 B' 2' B' 3 Birmingham 2000 Alstom Citadis 301 69 T2 Bo' 2 Bo' 3 Dublin, Orleans, Valenciennes 2000 Bombardier Flexity Classic M8DNF 34 T2 Bo' 2' 2' Bo' 3 Essen 2002 Bombardier Flexity Classic NF2000 NGT6 40 T2 Bo' 2' Bo' 2 Dessau, Halle 2002 CAF 8 T2/T3 B' 2 B' 3 Bilbao 2003 Bombardier Flexity Classic NGT6 26 T2 Bo' 2 'Bo' 3 Krakow 2003 Bombardier Flexity Classic NGTD12DD 32 T2 Bo' Bo' 2' 2' Bo' Bo' 5 Dresden 2003 Bombardier Flexity Classic NGT8'S' 60 T2 Bo' 2' 2' Bo' 3 Frankfurt 2003 Bombardier Flexity Classic SN2001 30 T2 Bo' 2' 2' Bo' 3 Schwerin 2003 Alstom Citadis 500 28 T2 Bo' 2' 2' Bo' 3 Kassel 2003 Leipzig Works Leoliner 37 T2/T3 Bo' 2' Bo' 2 Leipzig * 2003 Siemens Avanto S70 44 T2 Bo' 2 2 Bo' 5 Houston, Paris, San Diego 2005 Siemens NGT6D 45 T2/T3 Bo' 2 Bo' 3 Ghent 2006 Bombardier Flexity Classic NGTD8DD 50 T2 Bo' Bo' 2' Bo' 5 Dresden 2006 Alstom Citadis 500 50 T2 Bo' 2 Bo' 3 Den Haag * Read the entire page →
From page 9... ... The company has supplied many LRVs, including cars for the Cleveland Transit Authority and San Francisco Muni, but until recently had built relatively few LFLRVs. The early designs for Ansaldobreda LFLRVs were delivered to the Massachusetts Bay Transportation Authority (MBTA) Read the entire page →
From page 10... ... Many of these vehicles were constructed, but Siemens stopped developing this design in the 1990s. The company produced some more typical Category 2 vehicles and the center trucks for the Siemens Duewag/Adtranz (later Siemens/Bombardier) Read the entire page →
From page 11... ... About 20 wayside lubricators have been installed at sharp 11 City/system LFLRVs Years supplied Portland MAX Siemens/Duewag SD-600A and SD660A 1996-2004 Boston MBTA Breda Type 8 1999-2003 NJ Transit Hudson-Bergen and Newark Subway Kinki Sharyo 2000-4 San Jose, Santa Clara VTA Kinki Sharyo 2001-4 Minneapolis Metro Transit Bombardier Flexity Swift 2003-4 Houston METRO Siemens Avanto S70 2003-4 San Diego SDT Siemens Avanto S70 2004 Table 2-6. Category 2 LFLRV deliveries, North America. Read the entire page →
From page 12... ... Figure 2-3. Center truck of MBTA Type 8 car (general view) Read the entire page →
From page 13... ... Articulated center truck frame (MBTA Type 8) Read the entire page →
From page 14... ... At one time it was necessary to re-profile the wheels as often as every 2,000 miles, as mentioned. This occurred because of changing the flange angle from the older Green Line standard of 63 to 75 degreesto mitigate derailment issues. Read the entire page →
From page 15... ... Center truck (NJ TRANSIT Kinki Sharyo LFLRV) Read the entire page →
From page 16... ... There would be no issue about introducing further cars of this type or other types of LFLRV on the Newark Subway. Measures To Reduce Issues NJ TRANSIT has introduced house tops to stop derailments from occurring. Read the entire page →
From page 17... ... 2.3.5 Santa Clara Valley Transit Authority (VTA) Infrastructure The Santa Clara VTA system of San Jose is a newly built light rail; it was inaugurated in 1987. Read the entire page →
From page 18... ... Cranked axle under the articulation (VTA Kinki Sharyo LFLRV) Read the entire page →
From page 19... ... 2.3.7 Houston MetroRail Infrastructure The MetroRail Red Line is a light rail system that began operation in Houston, Texas, in January 2004. It is 71⁄2 miles long and part of the Metropolitan Transit Authority of Harris County. Read the entire page →
From page 20... ... Details of the Center Trucks The Avanto vehicles have IRWs on the center trucks. The design uses cranked axles and a rigid center truck frame. Read the entire page →
From page 21... ... . 21 System Portland Boston Newark Santa Clara Houston San Diego Derailments No Yes Yes No No Excessive wheel wear No Yes Yes No No Excessive track wear No Yes Yes No No Excessive trackside noise No Neutral No Yes Neutral Excessive interior noise No Yes No No Yes Excessive poor riding No Neutral No No No Mitigation introduced Yes Yes Yes No Yes Mitigation successful Yes Partly Partly N.A. Read the entire page →
From page 22... ... . The Houston/San Diego Siemens "Avanto S70" design, also now on order for the Charlotte Area Transit System, has also been ordered by Paris RATP -- although this latter order has not entered service yet. Read the entire page →

From page 6...

... Since TCRP Report 2 was written, the Skoda Astra Streetcar has been introduced in the United States; this is a threesection articulated LRV with a low-floor center section. It is a Category 1 vehicle because the center section has no wheels suspended from the end sections through the articulation and is, therefore, outside the scope of this study.