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C, Druidstone Road, Newport (Grid ref ST241843) M4 between Newport boundary and J29, Newport (Grid ref ST240838) A48 between Newport boundary and J29A, Newport (Grid ref ST250836) A48 between Newport boundary and Celtic Way, Newport (Grid ref ST250832) M4 between J30 and Cardiff boundary, Cardiff (Grid ref ST225830) A48 between J29 and Cardiff boundary, Cardiff (Grid ref ST237822) A48 between A48M and Cardiff boundary, Cardiff (Grid ref ST240821) U, Marshfield Road, Newport (Grid ref ST255824) M4 between J29 and J28, Newport (Grid ref ST267843) U, Heritage Park, Cardiff (Grid ref ST238816) B4562, Bridge Road, Cardiff (Grid ref ST223823) A4232 between A48 and M4 Jct 30, Cardiff (Grid ref ST219826) U, Cobol Road, Cardiff (Grid ref ST249814) A48 between A4232 and A48M jn29a, Cardiff (Grid ref ST220818) A4232 between A48 and road to Llanedeyrn, Cardiff (Grid ref ST217820) U, Heol Pontprennau, Cardiff (Grid ref ST212824) A468 between Newport boundary and Pentre Tai Rd, Newport, Newport (Grid ref ST250876) U, Willowbrook Drive, Cardiff (Grid ref ST243808) U, Burnham Avenue, Cardiff (Grid ref ST221811) U, Harrison Drive, Cardiff (Grid ref ST242805)