Tuesday 10 September 2013

10/09/13 4 posts in 1 day

For those who don't know about this website I have to advertise it a bit as it is truly brilliant...

www.opentraintimes.com

on there they have brilliant timetables etc and best of all signalling maps with real time train locations shown for a large number of locations one of which being London Waterloo... very useful if like me you work for a company that goes into and out of Waterloo...

30,000 visitors

Just wanted to say thanks again (this site has now had more than 30,000 page visits!! I will endeavour to give you more to read about!!

Francis

10/09/2013 Low Adhesion Time!!

Right its that time of the year again. The time of year when your journey gets a bit longer and newspapers have a field day with headlines about wrong types of leaves and snow and ice etc etc

As I have just had my low adhesion brief (as a new driver I get it) I felt like trying to explain what the problem is as best as I can...

First thing I really have do is share a youtube video I have found. It is nearly 20 years old and is 20 minutes long but if you are really interested this is very good.

https://www.youtube.com/watch?v=6hxRTB66g2Y

This time of year we see more rain as a start. Heavy rain is better for drivers than light rain believe it or not. This is because heavy rain will often (but not always) gives the rail a good wash and keeps it clean. Light rain however, especially after long drive spells, will leave a film on the rail similar to how roads often get greasy. Think about when you drive, when it is slightly wet you can often wheel spin and that's with a rubber wheel gripping a tarmac road: imagine what it is like with a steel wheel on steel rail!!

The second thing that obviously happens in autumn is that leaves fall and this is where the press get their hilarious stories from. How can leaves falling effect very heavy trains? Good point but the very weight of the train can cause the issue. What happens is as trains pass over leaves on the rail the leaves are crushed (search youtube for coins on railway lines) in the same way that coins are flattened when they are placed on the line.
These crushed leaves create a coating on the rail that is like Teflon and means it becomes extremely slippery almost like black ice on roads. As a driver you don't always see this again like black ice and it can happen without warning. Now the next argument I get is surely as more modern trains come into services that cost hundreds and thousands of pounds surely they have technology that can help with this?
Well yes they do, its called WSP Wheel Slip Protection. What this does (and bear with me I am not an engineer and remember this is for Desiro trains that I drive but it should be similar to all trains) is as you start braking there is a sensor in each axle that monitors the rotational speed of the wheels. If one or more wheels start spinning slower or begin to lock it will automatically remove the brake from that wheel until it starts spinning at the same speed as the others. This will stop the wheels locking and will avoid damage to the wheels as well.
You can hear this system on your own train by listening for air "spitting" sounds from the wheels this is the brake valves opening and closing to release the brakes on individual rails.
Without this system, the wheels would all lock up and and the train would literally slide until such time as the wheels started gripping the track again.
As you can imagine, the trains speedo in the cab gets the speed reading from the wheels, if they lock up the speedo will show a lower speed than the train is actually going even dropping to zero if the wheels lock up which is very disconcerting for the driver!!
With the WSP system we also get sand to help. Think back to last winter with all the ice of the road. To help cars grip the road sand was sprayed to the surface, this gave your car more grip. The same happens on railways. The train will initially try to stop without it but when it gets to bad sand is blown in front of some of the wheels on the train, this improves grip and helps the train to stop.

Finally, the battle against slippery rails and leaf fall is the MPV trains. As of this autumn the MPV's (Multi Purpose Vehicles, picture below) will be driven by South West Trains drivers as part of the SWR (South Western Railway) alliance. These vehicles have multi purposes (obviously!!) and in autumn they have a large water jets attached to them which jet the rails as they pass, they can also lay a special gel called Sandite to the rail which is a sticky liquid that has something like sand in it to help trains grip the rail.
This attempts to keep the rail clean and "sticky" and helps passing trains but despite all this, trains still have to accelerate slower and brake much earlier. This is why your train takes longer. Also this is why some days it will be bad, often after strong winds (more leaves blown from trees) or after a shower of rain. You may also see drives looking stressed as driving becomes somewhat tricky even for the oldest best drivers out there so you can imagine how I feel with 9 months experience!!

So hopefully this enlightens you a bit. I appreciate that it is quite long winded but the video is good and I felt that leaves on the line is a bit of a national joke and when it is actually a very difficult time of year, perhaps a thanks to your driver next time you get off the train may make his or her day!!

 this MPV is at Swanwick between Fareham and Southampton Central - a line I drive and a well known line for slippery rails all year much less during Autumn!!

10/9/2013 Update

Hi all

It's been a while since an update as nothing interesting has really happened!

Since the last update a few things have happened:

SWT and NR alliance is still going strong

Platform 20 at Waterloo is almost ready to be brought back into use

I entered the South Western Railway competition

Almost a year since my final

So here we go, first of all the alliance which I may have mentioned before is still going strong. There are the odd improvement that front line staff are seeing but behind the scenes bigger things are happening and I cannot speak for everyone but I'm sure Emergency Speed Restrictions are being fixed much quicker!

Moving on platform 20: if you visit the website of the esteemed company I work for here http://www.southwesttrains.co.uk/Historic-journey-marks-the-first-anniversary-of-the-South-West-Trains-and-Network-Rail-Alliance.aspx you can see the special train a class 444 that was name South Western Railway that visited platform 20. Every driver (except Salisbury) are going to be route learning for the new platform including a dvd and map being issued. I'll ask if I can upload the DVD to this site when I get it. Once we are all trained then we can start using the platform for passenger services. I am led to believe that SWT are hard at work to get the other platforms back in use. I have seen this signal just outside Waterloo showing 20 on a couple of occasions (for the platform) but can't photograph it while driving as you can imagine!
MORE TO COME when I get my go at driving in there!

Photo competition.. before the summer SWR (South Western Railway) began a photo competition with three categories: People, Infrastructure and Rolling Stock. As an avid photographer this seemed like a good opportunity and I duly entered. Next week I have been invited to a hotel in London for a lunch to celebrate the competition so here's hoping I have done well. I won't upload all the pictures but my favourites are these two:



as you can imagine, if I do well you will definitely here about it next week!

A years anniversary: Can you believe that a year ago next week, I was writing to say that my drivers final was starting. As you know I passed then but a rather worrying situation has arrived for next week. Rules Tests!
On the 16th I have a rules test, a route conducting test, and a traction test all have to be carried out. Now you are probably reading this and saying yes... what's the problem? Well it mainly consists of the fact that although I have been happily driving up and down the routes from Portsmouth to London, as you can see from this blog I have had nothing happen to me. Most of the rules are like the highway code, that meaning that you must stop at Red Lights, must not move with the doors open etc etc. There easy and I can answer those questions easily.
But what about the questions or rules that you do not use very often for example for those car drivers who have no children - would you know how tall a child has to be before they can sit without a child seat? I doubt it but what if you picked up a friend with a child? You still have to have a car seat.
It's the same with train drivers, I know speed restrictions, signal types and colours, but what is the form number for Single Line Working (I haven't had to do single line working since I qualified or ever for that matter) so I don't know.
In a nutshell, fair amount of revision to do this week!!

So that is an update post, have a look at the other post for today as it is all about low adhesion!

Francis