AVE high-speed rail services will connect the city of Murcia to the network of services in Spain. First train to arrive at the end of 2021.
The tunnel will have emergency exits at every 100 metres in the area closest to the station,and that there will be as many as 7 tracks.

https://murciatoday.com/high_speed_rail_tunnel_into_the_centre_of_murcia_progressing_well_1272888-a.html