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Amtrak's Arrow Reservation System is used nationally in the United States by Amtrak employees to take reservations, check train status, and monitor Amtrak equipment throughout the 30,000 miles (48,000 km) of the Amtrak network. Arrow was created to make Amtrak's reservation taking more simple.
The following codes are standard across all CRSs based on the original PARS system: - Name; 0 Segment (flight) information, including number of seats booked, status code (for example HK1 - confirmed for one passenger) and fare class; 1 Related PNR record ids. 2 PNR owner identification (airline, CRS user name and role)
As shown on the photographs at right, the code may be arranged either vertically (e.g. on closed wagons) on three or more lines at man's height with the letter codes next to the corresponding part of the digit code, or horizontally (e.g. on flat wagons) at the bottom of the chassis side with all digits together (with groups separated by spaces and the check digit by a dash) and all letters ...
The sum of all these numbers modulo 11 is the check digit. [13] The code on the caboose in the picture at top can be decoded as Start 8350199918 Stop 5. This means a car with equipment code number 8, ownership code 350, which lists this as a car of the Illinois Central Railroad, [15] car number 199918, with a check digit of 5.
Every train has an 8 digit code assigned to it which is used to ensure that every train has a unique ID within TRUST. This is subdivided into 3 parts. This is subdivided into 3 parts. For example, a headcode for the 05:56 East Midlands Railway Sheffield - St Pancras service would be written thus: 25 1C11 M5 .
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Step 6 : The check digit is the number required to the added to round up to the next multiple of 10. If the total is already a multiple of 10, the check digit will be zero. For example, if the first ten digits are given by 3110169521 Step 1 : S1 = C2 + C4 + C6 + C8 + C10 = 1 + 0 + 6 + 5 + 1 = 13 Step 2 : S1 × 3 = 39
Digits 1–2 are the type code, 3–4 the country of origin (where the vehicle is registered), 5–11 are defined by the country concerned, 12 is the check digit calculated via the Luhn algorithm. [4] It is followed by abbreviations for the country of origin and the owner of the vehicle.