You know MATLAB?

In simple terms, there are two types of train carriages: ones that carry passengers and ones that provide services like food and luggage transfer. They have different codes for management. Passenger carriages have codes for ticketing and reservations, while service carriages don't need them.

Coaching stock aam taur par do categories mein baanta jata hai, Passenger Coaching Vehicles (PCV) (kabhi-kabhi 'Passenger Carrying Vehicles' bhi kaha jata hai) jo aise coach hote hain jo yatriyon ko le jaate hain, aur Other Coaching Vehicles (OCV), jismein service coach shaamil hote hain jaise pantry cars, parcel vans, mail vans, etc. Coaching stock ko neeche dikhaaye gaye codes ka istemal karke classify kiya jata hai. Dhyaan rahe ki ye codes structural features ke anusaar hai aur rolling stock management ke liye istemal hote hain. PCV coaches mein uplabdh accommodations ke prakar ko darshane ke liye, ticketing aur reservation ke uddeshyon ke liye, aadi alag codes ka istemal hota hai. OCV ka reservation ke liye istemal nahi hota.

Special trains or clone trains don't get top priority. So they often end up getting overtaken by other trains and running 4 hours late or even more, for sure.

Clone train ya special trains ki priority bahut kam hoti hai, in clone trains ko bahut saare overtake face karna padega aur 4 ghante se zyada late aane ka sure chance hai.