Bike-Sharing in US cities

Here you can read and listen to a text about bike-sharing transport services in some large American cities and the problems poor people have to access these services. 

You have to copy the link and paste it on your web browser.

 I hope you like it:

http://www.npr.org/blogs/codeswitch/2013/12/12/243215574/shifting-gears-to-make-bike-sharing-more-accessible