London underground: like they can not go back on the same line so how do they turn round, or get to the otherside?
l know that the circle line goes round in a circle
But how can it travel backwards on one line. I am talking about in london.
If it traveled back it would crash in to the normal train
i know they have driver seats at both ends i'm talking about the TUBE LONDON UNDERGROUND

it doesnt? trains have a drivers bit at both ends and can travel ''backwards''

dont they pull into a siding and use points to change tracks? same as any other railway

Drivers can sit at either end.

They basically get out of their driving seat, wlak to the other end & drove off what is effectively backwards. There is no fron or back of a train, it goes either way

EDIT: At the end of the line, it goes backwards but the signals makes it move to the other track. Trains, like cars, always travel on the left. It just switches track as soon as it leaves the station

EDIT: Oh God its you!! You r that pathetic person constantly asking tedious questions - there was me thinking this was a 6 year old! l thought u blocked me so l could not see ur questions.

Please block me again as l can;t stand ur tedious questions.

they dont turn around each end can be used as a front car for driving so basically when a there no more track the back becomes the front

Theres a giant in the tunnel at the end of each line, he picks up the train and turns it around. He gets to eat all the people that fall asleep on the trains and miss their stops.

it is as pinky suggests, there is a drivers cab at each end.

did you know most of the underground in London is not actually underground, only 45% is

The driver goes to the back of the train which now becomes the front of the train and what was the front of the train is now the back of the train, ok.

They probably use sidings which they pull into and then the driver gets out and goes to the end of the train which then becomes the front of the train.

l know in Chicago towards the last stop, the trains switch tracks..like the tracks make an X. so an incoming train will end up on the outgoing train is tracks at the last stop after that train has left

They have engines at both ends the driver just goes to other end of train.

Everyone is of course correct, Drivers cabs at at both ends. The crucial bit is ''points'' are used to move the train from the ''in'' track to the ''out'' track.

Often the train is fitted with an engine at the front of the train and one at the rear. So when they reach the end of the line the drive simply walks to the rear of the train.
When this is not possible the train companies can use a train turn table, this allows the train engine to be turned through 180 degrees and then re-attached to the other end of the train.
Ja.

Drivers controles each end. !

They drive the train from back end and front end of carriage. So it does not need to turn around.

It depends on the terminus concerned.

At most stations, the drivers walk to the other end of the train, because there is a driving cab at each end.

There r four exceptions to this rule.

At Kennington on the Northern Line, there is a terminal loop passing beneath the through running lines to/from Morden

At Heathrow on the Piccadilly Line, when the system is fully operational, all trains will follow a uni-directional loop : Hatton Cross - Heathrow Terminal 4 - Heathrow Terminals 1, 2, 3 - Hatton Cross.

The Circle Line has no turning movements, but driver reliefs r usually taken at Aldgate (where any excess layover is also taken). Some driver reliefs (especially on a Sunday) r taken a Edgware Road.

Although Hainault on the Central Line is actually a terminus from both directions (and, hence, the drivers change ends), there r certain trains that operate ''through'' Hainault without the driver changing ends.

By the use of a system known as points. They do not crash into a train coming in the other direction as they r switched to the other track. Go to a surface station like Edgware on the Northern Line & watch how the trains come in on one line, the driver walks to the other end, then when they leave they r switched to the London bound track. The same thing happens underground, where applicable (apart form the Kennington Loop, already mentioned) but u just do not see it. The other alternative is that there r 'turn back sidings' in a middle tunnel (there is on a Liverpool Street on the Central) The train terminates, the doors close, the driver drives it into the siding, walks through the train to the other cab & when he is ready to depart the points change directing his train on to the correct track

they have a carrage at either end that has controls in them!!!!

Right before (or sometimes after) the last platform, there is a structure like this
http://hampage.hu/trams/fav4/09200074.jpg
that lets trains cross over from one track to another. Look close for it as you're coming into the last station.

The operator changes ends, & waits for a dispatcher to power-throw the switches in the crossover. At that point he gets a signal that says he can proceed. That is how he gets back to the correct side.

Sometimes they crossover before they come into the station, sometimes after they leave.

Imagine that the track is a fork. The train drives up a prong onto the handle, then the driver swaps ends and drives down a different prong.

With GREAT difficulty and a lot of 'Caution.'

Sash.

They dont, the signalman will place them into the terminus platform they will then start back from there and cross over to the down line. Happens so many times a day, quite safe and easy and has been happening since trains began to run.

It is a bit like above ground when an 8 coach train splits into 4 & they both go the same way at first but small parts of the line move to the other track & they can move back. This makes the train switch.
When underground the train terminates at the last station the driver walks to the other end. Then the small parts of the track move the train onto another line that goes back the other way. It is all done before the next train gts to the staition.

Happy to help, email me if u understood =).

There is a Cab at each end, the driver walks to the other end, & drives off.

There r two track arangements, Cross overs (a short X shaped junction between the running tracks to switch trains back to the correct line r used at the end of routes.

This can be seen at Ealing Broadway, Stratford, Richmond, Wimbledon amongst others (These stations r above ground so the workings r visable)

In other places where Trains (either Underground or National Rail) continue there is a siding known as a Headshunt between the running tracks, this is used to keep the terminating train out of the way of through trains. The driver walks through the train to the other cab & is switched back to the correct route

This can be seen at Wembley Park, Amersham, Ranyers Lane, Harrow & Wealdstone amongst others (again above ground examples r used)

When a train gets to the end of the track, they dismantle the whole thing, transport it back to the beginning of the track at the other end and rebuild it. Sometimes they put propper wheels on it and make temporary bendy busses out of them

The hamburg picture is similar to how it is done in London.

NB one alternative is to do what the Tyne & Wear Metro do with the South Shields branch, have the last station on a single track section of line and the switch between up & down lines at the next station along.

Why r u ''SHOUTING''?

All Tube trains r double ended. At the end of the line the driver goes to the other end of the train & drives forward.

The trains cross over to the other line (all Underground 'Tube' lines r double track for most of their length) so there is no conflict with oncoming trains. If there is a section of single track at the end of the line then 'incoming' trains wait until the 'returning' train clears it. These single track sections r rare & not long.

The London Underground trains all pass on the left just like mainline trains & road vehicles.