Oscillation and emergency braking distance trials expected to end by this month
The process of commencing Namma Metro operations between Peenya and Sampige Road metro stations has gathered momentum with the Lucknow-based Research Design and Standards Organisation (RDSO) commencing oscillation and emergency braking distance (EBD) trials on the stretch.
Oscillation trial is conducted to test the track-worthiness of a new or modified design of rolling stock (metro cars).
The purpose is to test the dynamic behaviour of the rolling stock in different conditions with regard to safety, stability and quality rides. Similarly, EBD trials are aimed at testing the braking potential
BMRCL managing director Pradeep Singh Kharola said that the trials are in full swing. BMRCL had provided all the required documents and test reports to RDSO, and hoped that the process would be completed by December-end.
If RDSO is satisfied with the test results, it will issue provisional speed certificate enabling BMRCL to approach the Commissioner of Railway Safety, who is also the Commissioner of Metro Rail Safety (CMRS) for safety trials. The CMRS, after detailed tests and trials, will authorise BMRCL to commence passenger operations on the stretch. The final approval to open the line for public service will then be given by the Ministry of Railways.
RDSO executive director (urban transport) Rajesh Kumar told The Hindu that his colleagues were conducting the trials on both the up and down tracks. Generally, the track structure is approved by the Railway Board (schedule of dimensions) and based on that RDSO conducts the trials, he said.
BMRCL has sought maximum speed limit of 90 kmph under test conditions and if it is found feasible, the maximum operational speed allowed would be 80 kmph, he said. Mr. Kumar, however, did not specify when the personnel would complete the tests and said it would be known only after a couple of days.