XL.SXBH.MB-04: Replace signals on Red River routes (section from old Tan De ferry km 74 to Phu Khe wharf km133), Luoc (section from Quy Cao to N3 Cua Luoc), Tra Ly, Hoa ; to replace signals on the routes of Chanh river, Luong Ha Long - Yen Hung, Hon Dua - Cua Do, Luong Van Don - Co To, Va Ray Ngoai branch, Luong Sau Dong - Tien Yen, Tai Xa - Mui Chua, Luong Mong Cai - Van Don - Cam Pha, Mong Cai River, Bai Tho, Luong Bai Tu Long - Lach Sau (section from Islet Mot to Hon Dua), Cam Pha Lach - Ha Long, Luong Ta
XL.SXBH.MB-04: Replace signals on Red River routes (section from old Tan De ferry km 74 to Phu Khe wharf km133), Luoc (section from Quy Cao to N3 Cua Luoc), Tra Ly, Hoa ; to replace signals on the routes of Chanh river, Luong Ha Long - Yen Hung, Hon Dua - Cua Do, Luong Van Don - Co To, Va Ray Ngoai branch, Luong Sau Dong - Tien Yen, Tai Xa - Mui Chua, Luong Mong Cai - Van Don - Cam Pha, Mong Cai River, Bai Tho, Luong Bai Tu Long - Lach Sau (section from Islet Mot to Hon Dua), Cam Pha Lach - Ha Long, Luong Ta