30 一般国道30号(本四連絡道路) 与島PA~坂出北IC間 1040 7 8.2 8.2 8.2 8.2 0 0 17 4,507 379 4,886 1,223 2,982 4,205 9,091 3,361 37.0 1.49 9 0.23       1040 0 0 61 6,874 607 7,481 471 981 1,452 8,933 1,588 17.8 1.43 16 0.23       139   9,559   11,486 0.95 0.78 82.7 79.8 82.7 75.7 1040  
                    0 0 18 5,763 450 6,213 1,531 5,789 7,320 13,533 6,239 46.1                 0 0 73 9,251 708 9,959 650 2,127 2,777 12,736 2,835 22.3                 14,196 16,616                
      坂出北IC~坂出IC間 1041 7 2.6 2.6 2.6 2.6 0 0 8 3,562 271 3,833 836 1,878 2,714 6,547 2,149 32.8 1.47 9 0.24       1041 0 0 55 5,445 473 5,918 348 688 1,036 6,954 1,161 16.7 1.41 17 0.26       140   7,076   9,433 0.93 0.74 81.4 72.0 78.0 72.0 1041  
                    0 0 9 4,613 319 4,932 1,073 3,591 4,664 9,596 3,910 40.7                 0 0 64 7,368 544 7,912 474 1,440 1,914 9,826 1,984 20.2                 10,243 13,560                
        31040 7 4.9 4.9 4.9 4.9 0 0 12 5,032 420 5,452 532 3,062 3,594 9,046 3,482 38.5 1.49 16 0.26       31040 0 0 66 6,661 602 7,263 786 1,000 1,786 9,049 1,602 17.7 1.42 16 0.26       139   9,559   11,486 0.95 0.79 82.8 79.8 82.8 75.7 31040 分 1035岡山オカヤマ
                    0 0 13 6,435 476 6,911 669 5,866 6,535 13,446 6,342 47.2                 0 0 78 8,928 699 9,627 1,091 2,152 3,243 12,870 2,851 22.2                 14,196 16,616               県境ケンキョウ
    *  路線計  *       15.7 15.7 15.7 15.7 0 0 14 4,514 374 4,888 943 2,824 3,767 8,656 3,198 36.9       0.24         0 0 62 6,571 583 7,154 549 938 1,487 8,641 1,521 36.9       0.24                     82.5   81.9      
                    0 0 15 5,782 678 6,219 1,186 5,449 6,635 12,854 6,127 47.7                 0 0 73 8,838 678 9,516 758 2,021 758 12,296 2,699 22.0                                        
30 一般国道30号 高松市磨屋町8-1 1039 1 1.6 1.6 1.6 1.6 3,875 4,200 1,636 19,366 710 20,076 4,183 1,652 5,835 25,911 2,362 9.1 1.32 14 0.84 2.06 0.19 2.25 1039 1,761 1,771 692 20,529 674 21,203 1,572 457 2,029 23,232 1,131 4.9 1.28 15 0.75 2.25 0.06 2.31 138   27,561   20,509 0.94 1.13 30.2 17.4 23.9 15.4 1039  
                    4,646 4,839 1,972 25,819 906 26,725 4,858 2,514 7,372 34,097 3,420 10.0                 2,063 2,031 950 26,108 772 26,880 2,024 894 2,918 29,798 1,666 5.6                 36,812 27,025                
    *  路線計  *       1.6 1.6 1.6 1.6 3,875 4,200 1,636 19,366 710 20,076 4,183 1,652 5,835 25,911 2,362 9.1       0.84         1,761 1,771 692 20,529 674 21,203 1,572 457 2,029 23,232 1,131 9.1       0.75                     30.2   23.9      
                    4,646 4,839 1,972 25,819 772 26,725 4,858 2,514 7,372 34,097 3,286 9.6                 2,063 2,031 950 26,108 772 26,880 2,024 894 2,024 29,798 1,666 5.6