Statistics in Railways - An Introduction
Sources:
Origin of the word Statistics: German “Statistik” means Description of a State or a Country
Definition: The discipline that concerns the collection, organization, analysis, interpretation and presentation of Data.
Characteristics:
Numerically expressed
Aggregate of facts
Systematically collecting the Data
Should be comparable to each other.
Data are collected for a planned purpose.
Statistics in Indian Railways:
Statistics Organization Incharge - Director Statistics & Economics, who works under the control of Member Finance in Railway Board.
Statistical Officer is incharge at Zonal Railways, who works under the control of PFA
History of Indian Railways:
Official Use - Printed triennially (every 3 years).
Sale to the Public - Published Sexennially (every 6 years)
From 1969 onwards - Published decennially (every 10 years)
Factors - Railway Statistics: The Railway Statistics are based on the followin factors:
Quantity - Expressed in number of tonnes and passengers transported and earnings derived.
Distance - Expressed in Kilometres
Duration - In Hours and Days
Service - In Trains, Vehicles, Wagons & Engines
The above Primary Units are linked together to express in Composite items called Fundamental Units. That is Fundamental Unit = Linking of Primary Units. Examples are:
Tonne Kilometres ( Fundamental Unit) - Tonnes & Kilometres ( Primary Units)
Passenger Kilometres (Fundamental Unit) - Passengers & Kilometres (Primary Units
Derivating Units: Relationship that exists between two sets of Primary Units or Fundamental Units are called as Derivative Units. Examples are:
Derivative Unit = Primary/Fundamental Unit + Primary/Fundamental Unit
Principal Heads - Statistics in Indian Railways are grouped as under:
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