Currently carrying out a historical survey of Mt. Lintien for Hualien Cultural Center, Cheng spends his own time talking with the old drivers and other railway workers for an oral history of the Hualien Taitung Line.
他目前除了受花蓮縣立文化中心委託做林田山林場的調查，也在工作之餘和老司機和老工作人員聊天，做花東線的口述歷史。