515-foot hill challenges rail engineers
Folks in Northern Virginia have long hoped for a rail extension to Tysons Corner, which is the de-facto downtown of Fairfax County. Currently on the drawing board is a plan to extend rail from WMATA's Orange Line. The cost would be $2.4 billion--a bit steep, so planners are searching for ways to cut the cost.
That won't be easy though, in part because Tysons sits on a 515-foot hill. Engineers can either build an expensive tunnel or some ugly elevated structures that would soar high above the ground.
This graphic is a real eye-opener to the challenges that rail engineers face.
Post Author:
massysett | 9:14 AM |
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Having just come back from Switzerland, all I can say is "rack" :)
Lausanne even has a rack-and-pinion subway line.
