NET - Nottingham Tram Derailment 25/05

[George109]

Not a good week for NET - A few trams have failed this week, and today a tram has derailed at Old Market Square, as you can see it went a pretty long way before it stopped, apparently it was doing a turnback manoeuvre, looks like points moved under the tram.

The last one was taken from twitter and the other two were taken from the Nottingham Post story

Is it likely the points moved under the tram? Looks like it from the scrape marks. I wonder how bad the wheelflats are going to be!

How did it move that far when the speed limit is 15kph (or about 9-10mph)?

 

[rebmcr]

I wonder how bad the wheelflats are going to be!

Probably none, but are flange flats a thing?

 

[DriverToBe]

Because it was going over points it would have been doing a maximum of 10kph, it may have travelled that far because of it being on concrete and at the rear there is a good chance the driver didn't know until it hit the platform

 

[edwin_m]

Looks like most of the tram took the crossover but the last section of the body (sitting on two axles) was diverted along the straight route. When they diverged too far those wheels were wrenched off its track and started to follow the general direction of the rest of the tram. On the left turn into the tramstop either the left hand wheel has engaged with the kerb, or possibly the right hand wheel with the left hand rail. It then looks as if the derailed part has run up the platform ramp.

 

[theageofthetra]

Because it was going over points it would have been doing a maximum of 10kph, it may have travelled that far because of it being on concrete and at the rear there is a good chance the driver didn't know until it hit the platform

So it was a propelling movement?

 

[westcoaster]

So it was a propelling movement?

No because if it was a propelling move the driver would have been in the derailed cab.

 

[robvulpes]

On NET are usually-trailling turnback points manually operated by bar (like here on Croydon Tramlink) or motorised?

 

[tis61]

On NET are usually-trailling turnback points manually operated by bar (like here on Croydon Tramlink) or motorised?

They are manually operated by points bar.

 

[edwin_m]

I doubt if driving from the rear cab is allowed, especially in pedestrian areas, as it's clearly dangerous. The Bombardier Croydon trams had the "reverse" position on their direction switches disabled so the driver had to go to the other end.

 

[DriverToBe]

They do have reverse but it's only used when coupling to straighten the bar, any other time you drive from the lead cad.

 

[nottinghamcity]

No RAIB investigation according to the Nottingham Post

While an internal investigation is to be carried out, a Rail Accident Investigation Branch spokesman has confirmed they will not be looking into it.

http://m.nottinghampost.com/investigation-launched-into-nottingham-city-centre-tram-derailment/story-30356093-detail/story.html

 

[SCH117X]

229 Viv Anderson MBE was involved in a collision with a lorry today
Link to local press article