Brief Introduction of the Book

On the basis of different structure of ballastless turnout for high speed railway，this book is divided into two parts：ballastless track construction in slab type turnout area and ballastless track construction in sleeper type turnout area.In this book，the following contents are respectively discussed：the different structure of ballastless track in turnout area and its transitional form with other type track structure，the construction technology of track bed in turnout area，quality control key points is presented，track intersection and control measurement in turnout area，turnout transportation and storage management，turnout paving and fine adjustment，and thermite welding method for turnout steel rails，etc.