Mexibús Line IV

The Mexibús Line IV is a bus rapid transit (BRT) line in the Mexibús system. It operates between the Universidad Mexiquense del Bicentenario (UMB) in Tecámac and La Raza metro station in Gustavo A. Madero, Mexico City. It was the fourth line to be built and the fourth to be opened. It was inaugurated by the governor of the State of Mexico, Alfredo del Mazo Maza on 24 February 2021. It has 30 operative stations. It is 22.3 km long. The line has two different types of services, and both include a service exclusively for women and children named Servicio Rosa (Pink Service). The line operates with 71 buses.

While the line was under construction, Line II provided a provisional route from Las Américas to Indios Verdes.

History and construction
The line began construction in June 2014, and was expected to open since 2015. It started free pre-operative tests on 24 February 2021. Operations started on 9 October 2021.

On April 7, 2024, the southern expansion from the Indios Verdes station to the La Raza metro station station came into operation.

Expansion
The line is expected to connect with the Felipe Ángeles International Airport, in Zumpango Municipality to the north.