Explore details about location 山陽自動車道. 山陽自動車道 is a location situated within the 廿日市市 alongside other areas such as 広島県道43号厳島公園線, 地御前第2地下道, 国道４８８号. Additionally, some smaller parts of 山陽自動車道 include specific areas like 国道433号 adding to the diversity of its landscape.