Mexico begins work on the Ecovia bus rapid transit (BRT) system August 16, 2011 | Latin America News Mexico's Nuevo León state government has commenced work on the USD139 million bus rapid transit (BRT) system, Ecovía, in the state capital of Monterrey. The project that was awarded to Cemex Concretos... This content is available to only subscribers. Username or E-mail Password Remember Me Forgot Password