Відео

The track gets a maintenence tamp once a year. Ballast is sprayed with a total herbicide annually to keep the stone clean and weed free.

It's 2am, one of these has just woke me up. Wondered what the fack was going on!

If height clearance isn't an issue, then you'd go back and lift to the new level. Tunnels and bridges,etc would mean cutting out ballast to lower the track again. The pre-tamping recording pass of the machine over the worksite determines levels and computer does the rest.

This area of farm crossing got a total lift of 150mm from the level we laid and this machine wouldn't allow that much. Completed in 3 passes though. Computer very definitely said no!

99% of all the work that on-track machines like this do is at night.

@@brentncleeton9771 Thanks for that.

Lol ...that’s what I came to find out too, after seeing a vid on the Wales incident and Amsterdam UFO video.

@@Umbrey_Dunctum I found out on another channel that they dont point up to the sky only point towards the track. As I got told there is no reason to point them to the sky. I hope that helps.

Many years ago, I worked in a building that backed up to a RR spur in a business district. I could look up and down the track behind our building and see that track was an _absolute mess_ both horizontally AND vertically! It was amazing (and kind of scary) to see how much a locomotive and cars would wiggle and move around when coming up the track! Anyway... One day a machine similar to the one in this video came along and worked on the track. As luck would have it, the crew stopped for lunch right behind our building so they could sit on the lawn under a tree and eat! That gave me a perfect opportunity to run out there and ask 'em a bunch of questions about the equipment they were using. One of the questions I had for them was, how does the tamper **know** how much to lift/shift the track? What I was told was that they setup a laser much further down the track ahead of the tamper. The laser beam is directed _back_ at the tamper, and the tamper then uses sensors and a computer to calculate exactly how much to lift/move the track to maintain itself on the beam. For what it's worth, I went out there the next day and the track looked absolutely perfect!!! Another crew came along within the next day or so and added more gravel, and the next time I watched a train come through, it had NO side-to-side, up-and-down, or swaying movement at all!!!

33108 with Dave Evans at the controls.

Brent N Cleeton nice , I’m heading there on Saturday