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About Directorate

About Directorate

Testing Directorate is the premier directorate of RDSO undertaking design validations of all newly designed/modified rolling stock developed in-house or imported, employing the latest state-of-the-art data acquisition and analysis tools and techniques.  Besides undertaking actual field trials, this directorate has three laboratories for conducting stationary tests as well.


The various tests and trials done by Testing Directorate can be broadly classified into Field Trials and Laboratory Tests.


Field Trials are those trials which are conducted on newly designed prototypes and modified rolling stock, for assessing ride quality and ride comfort apart from Route proving runs, Brake trials and Coupler force trials to assess their behaviour in actual operating conditions. Testing Directorate has also been entrusted with carrying out periodic track monitoring runs on Rajdhani and Shatabdi routes.


We undertake various types of regular as well as specialized field trials like::


Regular Trials

Specialized Trials

·       Oscillation Trial      

·       COCR / Route Proving Run

·       Squeeze Test

·       Emergency Braking Distance

·       Controllability

·       Coupler Force

·       Rating & Performance

·       Haulage Capacity

·       Jerk Trials

·       Platform Clearance Trials

·       Cant Deficiency Trials

·       Stress augmentation Trials

Test train with Oscillograph Car


Laboratory Tests are conducted on newly designed sub-assemblies and Rolling Stocks components as well as quality audit check for assessing the suitability by simulating service condition / field condition in three well equipped and modernised laboratories.