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Type "Old" "Old" "New" "New" "New" "New" "New" City Boston Newark Portland Hudson- Bergen Santa Clara Houston San Diego System MBTA NJT MAX NJT VTA Metro SDT Routes Green Line Penn Station- Grove St. Blue, Red and Yellow lines Hoboken- West Side/ Bayonne Mountain View- Baypoint- St.Teresa, Almaden Downtown- Reliant Park Blue and Orange lines Route miles 25 4 33 21 31 8 50 Opened 1889 1934 1986 2000 1987 2004 1981 LFLRVs introduced 1999 2000 1996 2000 2001 2004 2004 Track types used: -Ballasted â â â â â â â -Direct fixation â â â â -Embedded â â â â â â Track gauge (mm): -Tangent track 1435.1-1445 1432-1438 1422-1454 1422-1473 1433-1441 1434-1470 1422-1467 -Curved track 1435.1-1445 1432-1438 1422-1454 1422-1473 1433-1441 1435-1437 1422-1467 -Sharp curves 1447.8 1438 1416-1460 1438 1439-1447 1435-1473 1422-1467 Minimum curve radius (feet) 42 60 82 100 82 123.4 150 Minimum length of tangent track between curves: -(Feet) 0 150 50 150 0 32.8 50 Min.vertical curve (feet) 300 1500 2000 1660 180 100 Rail inclination: -Embedded 0 NA 0 0 0 1 in 40 -Non-embedded 1 in 40 1 in 40 1 in 40 1 in 40 1 in 40 Maximum speed (mph) -Tangent track 50 50 55 50 55 66 55 -Sharp curve 6 5 5 5 8 5 10 115 RE 115 RE 115 RE 115 RE 115 RE RI 59 Rail sections used 149 GCR 115 RE RI 60 115 RE RI 59 132 RE (Test track only) 90 ARA-A Flange tip running Yes Yes Yes Yes No Yes Swing nose frogs Yes No Yes No No Yes Track-mounted lubrication Yes Yes Yes Yes Yes No Yes 68 A P P E N D I X D Track Data and Standards Applicable to the Transit Systems Studied