Nagasaki Tram Derailments & Service Suspension

[bill937ca]

For the second time since September a Nagasaki Electric Tramway car has derailed on the junction at Kokaido-Mae station  where tram 3 turns off toward JR Nagasaki. As of June 3 line 1 is running and there is partial service on line 5.  Lines 3 and 4 are suspended.  Asahi Shimbun Digitial Japanese language news story.

 

During the line 3 service suspension over the winter line 2 operated as a substitute.  Line 2 is usually  a first trip, last trip combination of lines 1 and 3.

 

A video of the situation as of January 10, 2016.

 

 

Edited June 4, 2016 by bill937ca

[Gordon Werner]

bad track? debris? any specific cause?

[bill937ca]

The translated story says "wear of the rail is responsible".  About 40 metres needs to be replaced.  As it is special work it may need custom castings which take time.

 

From the Nagasaki Electric Tramway Facebook page:

 

Announcement of some suspended service continuity

Due to the impact of the derailment accident in Kokaidomae that occurred on June 2, 
June 5 (Sunday) and 6 days (month) also will be suspended service part than the first train. 
Operation of each system are as follows.

[Transportation services resume] 
undecided

[Each system operation status of] 
No. 1 line (Akasako ⇔ Shokakuji below) Normal operation 
No. 3 system (Akasako ⇔ firefly teahouse) suspended service 
No. 4 system (Shokakuji under ⇔ firefly teahouse) suspended service 
No. 5 lines (Ishibashi ⇔ firefly teahouse) part suspended service (folded runs every stone bridge - built-cho)

We apologize for inconvenience. 
When the operation resumed we will be notified by this service.

June 4, 16:00 current

[Densha]

In other words, the mentioned services will be suspended on 5 and 6 June. If all goes well, services will obviously resume on 7 June.

[katoftw]

Dig up the concrete.  Removed track.  Replace with new track.  Pour in new concrete.  Done.

[stevenh]

Melbourne is pretty damn good at rail replacement in 48 hours!

 

 

 

[bill937ca]

Operation has resumed some service from 1530 hours 2016 June 10. 

 

Part of the normal service was resumed to inform.

On June 2th - occurred in the derailment, influenced by the part I have been suspended, but the 10th (Sat) 15:30 "ROUTE 3" Red-go except we resumed its operation .

Route 1 (Red-⇔ shogaku) usually under operation
3 system
* Red-⇒ hotaru chaya is route 3 normal operation
* Hotaru Chaya ⇒ Red-2 route is superseded by the operation
Route 4 (lower shogaku ⇔ hotaru chaya) 20-minute intervals in the operation
Route 5 (ishibashi ⇔ hotaru chaya) normal operation

Any other information you see here, please.
http://www.naga-den.com/publics/index/434/

[katoftw]

not related, but when I clicked the link you provided, I noted the have a small museum.

 

http://www.naga-den.com/publics/index/49/

[bill937ca]

Transportation Safety Board issued a report January 17, 2017 on the four accidents at this junction since 2007. The cause was a rear truck wheel striking the guard nose during the turn on the R20 radius curve.

 

https://scdn.line-apps.com/stf/linenews-issue-954/item-516424/33426a3f7218db1ae62f8508f2262d3e18b997ad.jpeg

 

https://scdn.line-apps.com/stf/linenews-issue-954/item-516424/66904cdd4567283538a489c75b9196eed7d6467c.jpeg

 

Starting in March 2017 this curve will be rebuilt, increasing the radius from R20 to R35.

 

https://scdn.line-apps.com/stf/linenews-issue-954/item-516424/5a0d38623a7fefbca9457f1af263c2a110a6b146.jpeg

 

Speed of 13 k/h was cited once as a partial cause, but the most recent derailment occurred during a 5 k/h turn, half the 10 k/h limit.

 

Reports online:

 

http://news.line.me/issue/oa-trafficnews/1jecpqnuskaxt?utm_source=Twitter&utm_medium=share&utm_campaign=none&share_id=vcU84865432824

 

http://nanzocamera1.cocolog-nifty.com/blog/cat59399874/index.html

Edited January 29, 2017 by bill937ca