Excerpt from an opinion article by a member of the Denver City Council in the Denver Post when the area's FasTracks program was ramping up:
"But there’s a simple way to avoid those problems: EMUs. Electric Multiple Units are the cleanest, quietest commuter-rail vehicles in existence. They’re common all over Europe, Asia and Australia. A number of commuter lines in the eastern U.S. use them, too.
However, most of the commuter- rail systems in this country operate on diesel power. Cities tend to gravitate toward diesel for a couple of reasons. First, it has a proven track record. Second, diesel-based lines are easier and cheaper to implement than electric-based ones. And maintaining the power lines for an electric-based route requires additional time and money.
But the return on that investment is a better quality of life – which is the reason voters approved FasTracks."
Full article at
http://www.denverpost.com/2006/11/16/use-electric-trains-for-next-line/
* The East Rail Line is part of RTD’s 2004 voter-approved FasTracks plan to expand transit across the Denver metro region.
* 22.8-mile electric commuter rail line between Denver’s Union Station and Denver International Airport (DIA).
* The steel car bodies were manufactured at Hyundai Rotem’s plant in South Korea, then shipped to the company’s plant in Philadelphia for fitting and assembly of various components including wheel trucks, brakes, seats, etc.
* The vehicles will travel up to 79 miles per hour, go longer distances and make fewer stops than a typical light rail system.
* Sixty-six vehicles were purchased to serve the East Rail Line to Denver International Airport, the Northwest Rail Line to Westminster, the Gold Line to Arvada/Wheat Ridge and the North Metro Rail Line to Thornton.
Opened to the public on April 22, 2016 as the University of Colorado A Line. It's a nice ride.
"FasTracks is funded through a combination of funding sources, including the voter-approved sales tax increase of 0.4 percent (4 pennies on every $10), passed in 2004".
Boston and Massachusetts should do this also to get sorely needed transit projects started sooner rather than later. Los Angeles voters did the same. Denver and Los Angeles make Boston look like a chump.