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टेक्नीकल पेपर्स

टेक्नीकल पेपर्स

Determinants of the Selection of High-Speed Rolling Stock for Safe and Sustainable Operations

By Shri Sandeep Srivastava, Director (Rolling Stock), NHSRCL

High-speed rail’s (HSR) capacity to accelerate regional development is driven by the non-linear, dynamic, technical, and social interactions in an HSR system. To enable HSR project growth, policy makers must tackle complex issues, such as stakeholder engagement, safety, and cost and schedule overruns. A robust institutional framework that defines each stakeholder's role, the standards used, and coordination and conflict resolution mechanisms is…

Forging the Future of Bridge Fabrication: A Comparative Analysis of Japanese and Indian Fabrication Techniques with the backdrop of MAHSR Project

-Rajneesh Saroj, Dy. CPM/NHSRCL


This technical paper delves into a comparative analysis of steel bridge fabrication methods employed in Japan and traditional practices in India, with a specific focus on the Mumbai Ahmedabad High-Speed Rail (MAHSR) project's adaptation of Japanese techniques. Japan's cutting-edge approach to steel bridge construction, characterized by mechanization, precision, and stringent quality control, is examined in contrast to the conventional methods utilized in India. The…

A review of research into aerodynamic concepts for high speed trains in tunnels and open air and the air-tightness requirements for passenger comfort

By Shri Sandeep Srivastava, Director (Rolling Stock), NHSRCL
Shri Govindu Sivasankar, DGM (Rolling Stock), NHSRCL
Shri Gautam Dua, DGM (Rolling Stock), NHSRCL

Abstract : India will soon have its first line with trains operating at internationally defined standards of high speed (exceeding 250 km/h). On the MAHSR (Mumbai-Ahmedabad High Speed Railway) corridor modern high speed trains will routinely operate at speeds as high as 200 mph (320 km/h). At high speed, trains are…

Energy Efficient Operation of Rolling Stock in HSR

By Shri Sandeep Srivastava, Executive Director (Rolling Stock), NHSRCL     

Abstract : Efficiency of high-speed rolling stock and its efficient operation is key to sustainability of any High-Speed Rail (HSR) project. Power/seat is an indicator of energy efficiency of high-speed rolling stock from design point of view. However, energy/seat-km is actual measure of energy efficiency of any high-speed rolling stock and is also referred as HSR efficiency. This paper looks into how the operational techniques combined…