Railway Accounts Department Examinations

Showing posts with label statistics. Show all posts
Showing posts with label statistics. Show all posts

Monday, April 29, 2024

GMT - Gross Million Tonne - Statistics in IR

 


GMT - Gross Million Tonne (Statistics in IR)

What is GMT ? 

  • Gross = Total Load i.e., Carrying Capacity (Tare Load + Payload) 

  • Million = 10 Lakhs

  • Tonne = 1000 Kgs 

  • I.e., 100 Crores Kgs  or 1 Million Tonne 

  • GMT is a primary performance metric   - serves 3 groups of Railway Statistics in IR Statistics Manual i.e., 1. Economic Statistics 2. Transportation Statistics & 3. Administrative Statistics. 

  • GMT data of every train on every line  - captured on FOIS / ICMS / CoA

  •  FOIS stands for Freight Operations Information System 

  • ICMS stands for Integrated Coaching Management System

  • CoA stands for Control Office Application

  • Traffic Density Data (GMT)  - an integral part of Indian Railways IT Systems architecture. 

Why GMT is important: GMT data is a crucial decision criterion for 

  • Planned Track Renewals 

  • Preventive maintenance (like periodicity of USFD - Ultrasonic Flaw Detection) 

  • Riding quality (Track degradation model) 

  • Effective allocation of rails, track materials & resources, among works/projects under Plan Heads 11 - New Lines, 15 - Doubling & 31 - Track Renewals.

Existing mechanism (up to 2022-23) - calculation of GMT 


  • Computed by Zonal Railways 

  • Basis is GTKM & Lead (Kms) 

  • Manually input in TMS - Track Management System 

  •  Limitation is for sections with more than 2 lines (i.e., 3rd/4th line), the line wise GMT data is not available.  


New mechanism - from 2023-24 onwards   - calculation of GMT 


  • Zonal Railways would provide GMT data by May of the following year.  Example: For 2023-24 the data should be available by May 2024 and so on. 

  • All GMT data in TMS  - sync (API based) with the systems architecture

  • API stands for Architecture Programming Interface

  • No physical copies. No manual input in TMS - Track Management System

  • No signed copies in parallel 

  • GMT data from FOIS/ICMS/CoA would flow daily into TAMS - Traffic Accounts Management System   ( SMRTI - Statistical Module on Rail Transport Information) 

  • From TAMS to TMS 

  • From 2024-25 onwards - GMT data - refined format i..e, Block section wise Line wise  (earlier line was not available) 

  • Zonal Railways Statistical Units (under PFA)  - issue Monthly & Annual GMT Data

  • SPOC for Statistical Information Module   - GM/TAMS @ CRIS 

  • SPOC for input data of FOIS/ICMS/CoA - GM/OR @ CRIS

  • SPOC stands for Single Point of Contact 

  • It is calculated for Railway Tracks involving multiple factors and is a complex process. 

  • It is determined through detailed engineering analysis and simulation. 


GMT Calculated for Railway Tracks involving multiple factors.  These are: 


  1.  Axle Load: Higher axle loads leads to greater wear and tear. 

  2. Train Speed: Higher speeds can cause track degradation. 

  3. Train Frequency: The number of trains passing over a track within specified time (Line Capacity) can affect stress & wear on the track. 

  4. Track structure & Material: Ballasted or non-ballasted track and the material used play a significant role in determining load capacity & maintenance requirements. 

  5. Climate & weather: Extreme temperature or heavy rainfall conditions impact the Track’s durability. 

  6. Track maintenance practices: Frequency of track maintenance influences the overall track performance. 


Note: The above instructions are in supersession of any previous instructions on the subject (GMT) and in the event of conflict with any other instructions / part of any other instructions, the above instructions would prevail. 


Key points -  GMT 


  1. GMT is a primary performance metric   - serves 3 groups of Railway Statistics in IR Statistics Manual i.e., 1. Economic Statistics 2. Transportation Statistics & 3. Administrative Statistics. 

  2. Statistical units in Zonal Railways - under control of PFA 

  3. GMT  - Revised policy   w.e.f 01.4.2024 onwards  (or FY 2023-24 onwards) 

  4. GMT means Traffic Density Data 

  5. GMT data from FOIS/ICMS/CoA would flow daily into TAMS - Traffic Accounts Management System   ( SMRTI - Statistical Module on Rail Transport Information) 

  6. From TAMS to TMS  

  7. No physical copies.  No signed copies.  No manual input in TMS 

  8. From 2024-25 onwards - GMT data - refined format i..e, Block section wise Line wise  (earlier line was not available) 

  9. Zonal Railways Statistical Units (under PFA)  - issue Monthly & Annual GMT Data

  10. SPOC for Statistical Information Module   - GM/TAMS @ CRIS 

  11. SPOC for input data of FOIS/ICMS/CoA - GM/OR @ CRIS 


Abbreviations 


  1. GMT  - Gross Million Tonne

  2. FOIS - Freight Operations Information System 

  3. ICMS - Integrated Coaching Management System

  4. CoA - Control Office Application

  5. USFD - Ultrasonic Flaw Detection

  6. TMS - Track Management System 

  7. GTKM - Gross Tonne Kilometer

  8. API - Architecture Programming Interface

  9. SMRTI - Statistical Module on Rail Transport Information 

  10. SPOC - Single Point of Contact 

  11. CRIS - Centre for Railway Information Systems


—-end—-


Wednesday, October 4, 2023

Glossary of Terms - Statistics

 


Glossary of Terms - Statistics 


SN

Picture

Term

Description

1

Authorized Rolling Stock

Sanctioned allotment of Rolling Stock of Zonal Railways

Included: Stock ordered for or under construction, but not handed over to Traffic. 

Included: Stock sold or broken up but not replaced or removed from Authorized Stock 

Excluded: Stock replaced but still running  

2

Average Haul / Lead

The Average distance each  passenger or tonne of goods transported

3

Capital at charge

Book value of the Capital assets of the Railway

4

Capital Outlay

Capital expenditure incurred during the period (i.e., Financial year)  with the object of increasing concrete assets of a material character. 

5

Cross Traffic

All  traffic which neither originates nor terminates on the reporting Railway.

6

Departmental Train

Trains run for: 

  1. Revenue works / Capital works of an Open Line

  2. Workmen 

  3. Inspection 

  4. Pilot / Patrol Trains - In front of trains 


Note: Trains for Railway Coal are not included. 

7

Empty Running

Running of Vehicles without being loaded

8

Engine Failures

An Engine, if unable to work its booked train within the prescribed load from start to destination 


For a Period of:  


  1. 30 minutes or more  - Passenger Trains 

  2. 60 minutes or more - All other cases   


Due to reasons: 


  1. Defective design or material or bad workmanship in Shed / Workshop 

  2. Mismanagement by Crew or bad water / fuel





Thursday, September 28, 2023

Statistics in Railways - An Introduction

  

Statistics in Railways - An Introduction 


Sources:  


  1. Manual of Statistical Instruction Volume 1

  2. Statistics Manual 1 - Introduction 


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:  

  1. Numerically expressed 

  2. Aggregate of facts 

  3. Systematically collecting the Data 

  4. Should be comparable to each other. 

  5. 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: 

  1. Quantity - Expressed in number of tonnes and passengers transported and earnings derived. 

  2. Distance - Expressed in Kilometres 

  3. Duration - In Hours and Days 

  4. 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: 

  1. Tonne Kilometres ( Fundamental Unit) - Tonnes & Kilometres ( Primary Units) 

  2. 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

Derivative Units

Primary / Fundamental Units

Primary/Fundamental Units

Earnings Per Passenger 

Passenger Earnings (Primary)

Passengers carried (Primary) 

Earnings per Passenger per Kilometre 

Passenger Kilometres (Fundamental)

Passenger Earnings (Primary) 

Average distance travelled by Passenger or Lead

PKM-Passenger KiloMetres (Fundamental) 

Number of Passengers (Primary) 


Average load in Wagons per Train

Wagon KiloMetres (Fundamental) 

Goods Train Kilometres (Fundamental) 





Principal Heads - Statistics in Indian Railways are grouped as under: 


SN

Principal Heads / Groups

Consists of : 

1

Economic & Financial Statistics

Tri-monthly approximate figures of earnings (every 10 days), Traffic handled in the shape of passengers booked, monthly statistics of tonnage lifted and wagons loaded and of revenue and expenditure

2

Transportation Statistics

No of trains run, Train KMs, Shunting KMs, Wagon/Vehicle KMs, Engine KMs etc

3

Commercial Statistics

No of Passengeers /Tonnes carried, PKM, NTKM, Average Lead, Average fare/Rate, Claims etc

4

Rolling Stock & Workshop Repair Statistics

Repair & Maintenance of Rolling Stock, Engine failures, Hot Boxes, Outturn etc 

5

Administrative Statistics

No of Staff, Sick days, Accidents, Pay Scales and Physical Statistics like Route KMs, No of Railway Stations, Gradients, curvature of the P.Way. 


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