A Method for Safety Evaluation of Train Braking System Considering Multiple Types of Preventive Maintenance Cycles
Round 1
Reviewer 1 Report
These are some areas for improvement:
- Elaborate k out of N systems
- Add the research methodology
- Include in more details the type of maintenance strategies
Author Response
Please see the attachment.
Author Response File: 
Author Response.docx
Reviewer 2 Report
Dear authors,
thanks a lot for giving me the possibility to review the paper named "A method for safety evaluation of train braking system considering multiple types of preventive maintenance cycles". I find the topico of great interest since a good maintenance influences the safety of passengers. Looking at your paper :
a) The introduction and references are good. However I suggest improving with 10.22201/icat.24486736e.2021.19.6.1460 . The paper you are writing is well defined, but classical. I think you can consider this. At this regard when you introduce the safety indicators you were doing well, but how will be these discussion used for future ? I suggest two papers of the same authors, these are the first I find,that can be helpful to improve your study.
b) About the methodology and conclusions : Well written, but how will you overcome the limit of this methodology in future? I think that this study is good, but is static and not dynamic in time. At this regard, in conclusion you state "we will consider more operational scenarios. Considering the multi- stage Markov state transfer process after downtime maintenance becomes more complex....". Well, it's good the approache but you will need a dynamic markovian study...don't you? Please underline better these aspects.
I say major revision even there is very little to do.
Author Response
Please see the attachment.
Author Response File: Author Response.docx
Round 2
Reviewer 2 Report
The authors answered well to all points indicated
