Great video, lots of nice details. Now I wonder what technology our local light rail train is using, because I've noticed the gear switch sound (though it just

Great video, lots of nice details. Now I wonder what technology our local light rail train is using, because I've noticed the gear switch sound (though it just has a single switch at perhaps 10-15 mph or so). Apparently it's a Siemens S70 (there are several varieties of rolling stock, but this is the one that makes the most distinctive sounds).