The strikes will affect Spain's high-speed Ave trains, as well as long distance, medium distance and local (cercanías) trains on 14 days in total.
Limited services will be running on 11 of those days and there will also be three days of general strikes: October 31st, December 5th and December 20th.
The days affected by partial strikes are October 28th, October 29th and October 30th.
Also affected by partial strikes are the following days in November: the 4th, 8th, 11th, 15th, 18th, 22nd, 25th and 39th.
The strikes on October 28th and those planned for November will take place between 7am and 9am, between 3pm and 5pm and from 11pm to 1am.
The strikes on October 29th will see cuts to services between 7.30am and 9.30am, from 6pm to 8pm and from 11pm to 1am.
On October 30th, services affected are those running between 9am and 11am, 4pm and 6pm and 10pm and midnight.
The strikes are being held by Spain's CGT and SF unions to protest the division of Renfe into four divisions as the government gears up for possible privatization of the network.
Renfe advises that you check their website before your travel.