Serial Number
The car numbers of the trains range from x311 to x352, where x depends on the carriage type. Individual cars are assigned a 4 digit serial number by the rail operator SMRT Trains.
- The first digit depends upon whether the car is the first, second or third car from the end of the train it is nearer to, where the first car has a 3, the second has a 1 & the third has a 2.
- The other 3 digits is the train identification number. A full length train of 6 cars have 2 different identification number, one for the first 3 cars, and the same number plus 1, for the other three. The smaller number is always an odd number. For example, train 333/334 would consist of 6 cars with serial numbers, 3333, 1333, 2333, 2334, 1334, 3334 respectively. A 6-car train can be split into 2 sets of 3 cars each. For example, set 333, which consists of 3333, 1333 and 2333, and set 334, consisting of 3334, 1334 and 2334, are combined to form 333/334. It has been known in the past for cross-couplements to occur (i.e. two different 3-car sets from two different trains of the same rolling stock are coupled together.) In such cases, the cross-coupled trainset would be referred to with a hybrid set number (for example 334/335 for a cross-couplement between sets 334 and 335). The best way to check if a train is correctly coupled is to walk between the 2*** cars (3rd and 4th cars) and check that the car numbers are consecutive (e.g. 2333 and 2334). 334/335 would also be considered a cross-couplement as the two sets (334 and 335) are from two different trains (333/334 and 335/336 respectively) and the smaller number (334) is even, despite the two numbers being consecutive.
- The reason why the car numbers begin with x311 is because there is a 4-car version of the C151 cars bearing the set number 301/302 which was used as a money train and is currently used by SCDF for training purposes.
- Kawasaki Heavy Industries built sets 311/312, 315/316, 319/320, 323/324, 327/328 - 333/334, 343/344, 347/348 and 351/352.
- Nippon Sharyo co-built sets 313/314, 317/318, 321/322, 325/326, 335/336 - 341/342, 345/346 and 349/350.
Read more about this topic: Kawasaki Heavy Industries & Nippon Sharyo C751B
Famous quotes related to serial number:
“The serial number of a human specimen is the face, that accidental and unrepeatable combination of features. It reflects neither character nor soul, nor what we call the self. The face is only the serial number of a specimen.”
—Milan Kundera (b. 1929)