"Efforts are underway to introduce this technology in train and a final decision in this context would be taken within a month," Roy said here yesterday.
If approved, the TPWS would be installed in 20,000 trains at the earliest, he added.
"Anti Collision Device machine has failed to prevent train accidents. Therefore the ministry is contemplating on the installing TPWS in train engines," Roy said.
TPWS technology has proved successful in Europe, he said adding, the Railway ministry is in discussion with several European nations including France for the project.
Roy was here to meet the injured passengers of Howrah-Dehradun Doon Express which had derailed near Mahrawa Station on May 31.
