Major carriers partner to bring LTE to Chicago's subways

Chicago Mayer Rahm Emanuel has announced that the city has reached a deal with Verizon, AT&T, Sprint, and T-Mobile to bring 4G LTE from all four carriers to the Chicago Transit Authority's subway system. The network, which will replace the decade-old system currently in Chicago's subways, will provide continuous coverage for 22 miles.

source: androidcentral