<div dir="ltr"><div>Ús de la xarxa ferroviària als Estats Units <b><a href="http://www.theatlanticcities.com/jobs-and-economy/2013/02/visualizing-how-poorly-amtraks-route-network-serves-most-us/4620/">http://www.theatlanticcities.com/jobs-and-economy/2013/02/visualizing-how-poorly-amtraks-route-network-serves-most-us/4620/</a><br>
<br></b></div><b>Raf<br></b></div>