Smart phone users who use public transit no longer have to worry about dropping their signal once their train heads underground. According to the Chicago Transit Authority, all underground 'L' lines now get full 4G service, making Chicago the largest city on the continent to have this coverage throughout its entire subway system. Upgrades to the underground cellular network began this year, and now 13 miles of the Blue Line and nine miles of the Red Line which run underground are now connected. According to the CTA, the major carriers, including AT&T, Verizon, T-Mobile and Sprint, not only helped in coordinating the effort, but also helped pay for it. Now you can check Google Maps to figure out where you're heading while the 'L' is underground.
·Mayor Emanuel Announces Chicago Transit Authority Now Offers 4G Wireless Service Throughout All Subways [Chicago Transit Authority]
·Train Spotting archives [Curbed Chicago]