RAC van reg BL07 LZH repeatedly parked on junction of West Wycombe road and Portway Drive, HP12 4AT. Blocks one lane so that cars entering and exiting Portway Drive are forced to use the same lane. Visibility is reduced for drivers using junction and pedestrians crossing Portway Drive. Photo shows van double parked on junction before predicted snow creating extremely hazardous conditions. Owner of van is resident of West Wycombe Road.