The European union has given Granada a grant of 600 million euros in order to finish the high speed stretch of track which will link it to the high speed network.
The work must be finished by the end of 2015 or the money has to be given back.
The journey time from Granada to Madrid is now 4 hours 25 minutes.
Afterwards it will be 2 hours 45 minutes.
Consequently there is disruption on all the trains in and out of Granada.
The train company is using buses to carry people across the affected routes so if you have bought a train ticket you don't have to worry.
However it may be a good idea to get a bus at this time
Information about buses is here http://alsa.es
Information about trains is here http://renfe.es