iv. Ballast requirements and, Types of railway ballast. [08 marks] [04 marks] b) Railway subgrade is particularly important in ensuring that track quality reaches the standard necessary for safe and comfortable running of trains. Therefore, the subgrade design is a function of three parameters. What are these subgrade design parameters?

iv. Ballast requirements and, Types of railway ballast. [08 marks] [04 marks] b) Railway subgrade is particularly important in ensuring that track quality reaches the standard necessary for safe and comfortable running of trains. Therefore, the subgrade design is a function of three parameters. What are these subgrade design parameters?

Construction Materials, Methods and Techniques (MindTap Course List)

4th Edition

ISBN:9781305086272

Author:William P. Spence, Eva Kultermann

Publisher:William P. Spence, Eva Kultermann

Chapter26: Bituminous Materials

Section: Chapter Questions

Problem 3RQ

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