Metrobús Line 4 to be extended to Pantitlán, Mexico October 21, 2019 | Latin America News The government of Mexico City has announced plans to extend the existing Line 4 of Metrobús, a bus rapid transit (BRT) system, from San Lázaro to Pantitlán. The project has been p... This content is available to only subscribers. Username or E-mail Password Remember Me Forgot Password