start on the old a30 10 yards east of the partially tarmaced track leading to unmanned level crossing gates, below the brow of the hill and approximately 770 yards west of victoria (grsw 981 613). go east to victoria interchange. at the first roundabout take the second exit to cross the a30. at the second roundabout take the second exit to join new a30 (direction "bodmin). go east to innis downs interchange. take the slip road and at the roundabout take the first exit onto the old a30. lap 1: go west on old a30 to victoria interchange. at the first roundabout take the second exit to cross the a30. at the second roundabout take the second exit to join new a30 (direction "redruth"). continue to highgate hill where filter left off the a30 (direction "newquay and indian queens). via the underpass roundabout take the fifth exit to rejoin the a30 (direction "bodmin"). retrace to innis downs. take the slip road and at the roundabout take the first exit onto the old a30. lap 2: repeat lap 1 lap 3: repeat lap 1 join the old a30 towards victoria (westwards) in approximately 1 mile and at the bottom of dip go left into unclassified road that passes under the a30. finish 100 yards after the tunnel exit (gr sx 013 625) intermediate mileages: - victoria interchange: -1.1 miles; 5.5 miles; 20.6 miles; 35.8 miles innis downs interchange: - 3.3 miles; 18.5 miles; 33.6 miles; 48.8 miles highgate hill: -11.0 miles; 26.1 miles; 41.3 mile