Sorry, can't find a match for this one but really would like to know. Reminds me of (obviously) Eurostile but there's a lot of differences.
More in the same vein, some possible candidates to base your customization on: Pragmatik (I like this one, you could even recreate this /e with the italic one), Myers Sans, Foundry Monoline

Structural, or cosmetic?

I don't clearly understand. Do you want me to say if I think it could be an outline theft or a rip-off? If that so, I just don't know and don't have skills and knowledge to clearly state it. I only said it reminds me of. Period. Just like Pragmatik, Myers Sans and Foundry Monoline remind me of Eurostile but being totally different.

Okay, you two: settle down. The unusual treatment of the descenders leads me to believe that some enterprising Japanese type designer decided to repurpose Eurostile. Perhaps the marketing department (or, for that matter, the engineering department) of the train company can help you identify that person. I am willing to bet that it was a bespoke/custom job…

Thanks Nick to confirm my thought about Eurostile. I clearly don't know if it could have been created directly from it though. May be some custom typeface by Maniackers Design?
For the rest, I confirm what hrant said, I have also no problem with Ryuk ;) and, of course, hrant. Was simply a bit surprised reading hrant's message. Thought he's suspected some outline theft and was seeking my confirmation. English is obviously not my mother language and there's no voice in any message so I probably took his message too peremptorily and feared to unintentionally start another witch hunting and be flooded by :D

Good find! And worth adding to this:
http://en.wikipedia.org/wiki/Eurostile

hhp

As usual, fantastic catch, Akira! You've probably remembered my "love" for Eurostile ;) It's always interesting to find (good of course) alternatives to (this overused and too much cheesy to my taste) Eurostile and always a great pleasure to discover more about typefaces thanks to you.