Figure 4 The Number of Significant Eigenflows with Respect to the Monthly Average Daily Traffice Flow Rate, Number of significant eigenflows,Monthly average daily traffic flow (veh/period) 1,0 1,0 1,0 1,0 1,0 1,0 1,0 2,8.11 4,136.46 5,767.82 5,0 5,0 6,0 6,0 6,0 6,0 6,0 7,5467.61 7,7421.61 8,0 9,0 9,1323.29 9,1275.43 10,148.21 12,1008.25 12,765.71 13,4806.82 13,9931.11 13,1884.96 13,13466.14 13,1287.71 13,2611.61 13,6595.14 14,1577.96 14,2998.93 14,860.96 14,1522.57 15,1606.18 15,1638.79 16,1085.93 16,3738.14 17,2076.5 18,8383 19,13191.14 22,7050.29 22,5350.68 23,1485.71 23,2001.82 23,7544.39 23,8362.18 23,7553.29 24,3715.54 24,2779.54 26,1890.36 26,5939.29 27,6881.46 27,2255.54 27,3572.36 27,2638.04 28,2093.32 28,4313.93 28,4435.82 28,6047.14 28,6816.86 28,3163.5 28,190 28,2996.04 29,4383.18 29,3686.71 29,7035.89 29,3006.64 29,3612.39 29,2799.18 30,6447.61 30,4255.39 30,7415.54 30,7311.96 30,1754.93 30,8883.21 30,5285.29 30,3488.04 30,3663.57 31,4915.21 31,2290.04 31,5009.36 32,2987.89 32,2916.64 32,5400.57 32,4734.68 33,2809.93 33,373.71 34,3807.21 34,5019.04 34,2703.79 34,9727.32 34,3217 34,5201.39 34,6609.32 34,2947.71 35,8082.86 35,6107.79 35,9514.39 35,8415.61 35,4235.18 35,6374.43 35,3008.71 35,6314.5 35,278.96 36,3350.93 36,4405.14 36,3548.21 36,3774.75 36,5381.86 36,4391.29 36,5682.75 36,4610.36 36,2579.79 37,5666.04 37,8603.39 37,3573.36 37,3087.68 37,9519.07 37,6042.46 37,5550.5 37,5131.96 37,2872.18 38,3271.71 38,8771.68 38,6023.11 39,2328.68 39,5391.93 40,5582.71 40,8337.43 41,7016.11 41,7028 41,4516.71 42,4436.18 42,3136.14 43,6033 44,8167.68