I think that the title suggests that is repositioning the stones (ballast). This... | Hacker News

Hacker Newsnew | past | comments | ask | show | jobs | submit

dotancohen on June 4, 2023 | parent | context | favorite | on: Why do railway tracks have crushed stones alongsid...

I think that the title suggests that is repositioning the stones (ballast). This video seems to be of the cleaning process:

https://m.youtube.com/watch?v=XWjUZJtR610

I could be wrong, I had never heard of this fascinating maintenance until this very moment.

Sharlin on June 4, 2023 | [–]

Tamping is also of critical importance when tracks are first laid; they’re quite uneven at first (visibly wonky) and the tamper evens out the ballast to achieve the extremely smooth geometry required.

bombcar on June 4, 2023 | [–]

I love the response:

>BOURLEZ RENOVATION

9 months ago

Why is it?

Guidelines | FAQ | Lists | API | Security | Legal | Apply to YC | Contact