Caltrain Vibration and Volatility Analysis

Re:Caltrain Vibration and Volatility Analysis by goodcanadian on Friday January 17, 2020 @04:28AM (#22073199)

From your link:

-The train surveys 4,800 miles of track every two weeks.

-The train covers 115,000 miles in a year.

It does not cover the entire system every two weeks.

EDIT: Wikipedia suggests a little over 10,000 miles of track in the UK, so it might be going over it all once a month though I suspect that heavily used high speed lines are covered more frequently than less used lines (which are more comparable to Caltrain).

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Re:Caltrain Vibration and Volatility Analysis by teh_klev on Friday January 17, 2020 @05:12AM (#22073426)

There are multiple inspection trains, not all of them need to be high speed. The well known "flying banana" is used to cover high speed lines, but for lines with lower top speeds there's also a fleet of loco hauled measurement and inspection trains that cover low speed and branch lines.

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Re:Caltrain Vibration and Volatility Analysis by Symbiote on Friday January 17, 2020 @06:00AM (#22073642)

This article says the other trains cover routes monthly.

https://rail-record.co.uk/guide-to-network-rail-test-trains/

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Re:Caltrain Vibration and Volatility Analysis by teh_klev on Friday January 17, 2020 @05:17PM (#22080082)

That's a decent article thanks for posting.

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