Railway minister Mamata Banerjee has promised the nation an accident-free railways in a year's time.

“There will be zero percent tolerance towards train accidents. We will install anti-collision devices and train protection and warning system in all the trains so as to check accidents,” Banerjee said at economic editors’ conference held here on Wednesday.

The minister also talked about railway’s new initiatives such as introduction of smart cards for the passengers. With the card the passengers can travel anywhere in the country. The smart-card project, however, is a work-in-progress right now, she clarified.

Further, she said double-decker train will start on Howrah-Dhanbad route within four to five days. If the pilot is successful, then it will replicated elsewhere, the minister informed.

Expressing concern over incidents of bomb blast on tracks, she said that in the aftermath of blasts, particular section of the track is blocked and this leads to revenue loss to the railway. In four to five years, there has been a loss of Rs1,500 crore.