Erlang B Traffic Table
Maximum Offered Load Versus B and N B is in %
N/B 0.01 0.05 0.1 0.5 1.0 2 5 10 15 20 30 40
1 .0001 .0005 .0010 .0050 .0101 .0204 .0526 .1111 .1765 .2500 .4286 .6667 2 .0142 .0321 .0458 .1054 .1526 .2235 .3813 .5954 .7962 1.000 1.449 2.000 3 .0868 .1517 .1938 .3490 .4555 .6022 .8994 1.271 1.603 1.930 2.633 3.480 4 .2347 .3624 .4393 .7012 .8694 1.092 1.525 2.045 2.501 2.945 3.891 5.021 5 .4520 .6486 .7621 1.132 1.361 1.657 2.219 2.881 3.454 4.010 5.189 6.596
6 .7282 .9957 1.146 1.622 1.909 2.276 2.960 3.758 4.445 5.109 6.514 8.191 7 1.054 1.392 1.579 2.158 2.501 2.935 3.738 4.666 5.461 6.230 7.856 9.800 8 1.422 1.830 2.051 2.730 3.128 3.627 4.543 5.597 6.498 7.369 9.213 11.42 9 1.826 2.302 2.558 3.333 3.783 4.345 5.370 6.546 7.551 8.522 10.58 13.05
10 2.260 2.803 3.092 3.961 4.461 5.084 6.216 7.511 8.616 9.685 11.95 14.68
11 2.722 3.329 3.651 4.610 5.160 5.842 7.076 8.487 9.691 10.86 13.33 16.31 12 3.207 3.878 4.231 5.279 5.876 6.615 7.950 9.474 10.78 12.04 14.72 17.95 13 3.713 4.447 4.831 5.964 6.607 7.402 8.835 10.47 11.87 13.22 16.11 19.60 14 4.239 5.032 5.446 6.663 7.352 8.200 9.730 11.47 12.97 14.41 17.50 21.24 15 4.781 5.634 6.077 7.376 8.108 9.010 10.63 12.48 14.07 15.61 18.90 22.89
16 5.339 6.250 6.722 8.100 8.875 9.828 11.54 13.50 15.18 16.81 20.30 24.54 17 5.911 6.878 7.378 8.834 9.652 10.66 12.46 14.52 16.29 18.01 21.70 26.19 18 6.496 7.519 8.046 9.578 10.44 11.49 13.39 15.55 17.41 19.22 23.10 27.84 19 7.093 8.170 8.724 10.33 11.23 12.33 14.32 16.58 18.53 20.42 24.51 29.50 20 7.701 8.831 9.412 11.09 12.03 13.18 15.25 17.61 19.65 21.64 25.92 31.15
21 8.319 9.501 10.11 11.86 12.84 14.04 16.19 18.65 20.77 22.85 27.33 32.81 22 8.946 10.18 10.81 12.64 13.65 14.90 17.13 19.69 21.90 24.06 28.74 34.46 23 9.583 10.87 11.52 13.42 14.47 15.76 18.08 20.74 23.03 25.28 30.15 36.12 24 10.23 11.56 12.24 14.20 15.30 16.63 19.03 21.78 24.16 26.50 31.56 37.78 25 10.88 12.26 12.97 15.00 16.13 17.51 19.99 22.83 25.30 27.72 32.97 39.44
26 11.54 12.97 13.70 15.80 16.96 18.38 20.94 23.89 26.43 28.94 34.39 41.10 27 12.21 13.69 14.44 16.60 17.80 19.27 21.90 24.94 27.57 30.16 35.80 42.76 28 12.88 14.41 15.18 17.41 18.64 20.15 22.87 26.00 28.71 31.39 37.21 44.41 29 13.56 15.13 15.93 18.22 19.49 21.04 23.83 27.05 29.85 32.61 38.63 46.07 30 14.25 15.86 16.68 19.03 20.34 21.93 24.80 28.11 31.00 33.84 40.05 47.74
31 14.94 16.60 17.44 19.85 21.19 22.83 25.77 29.17 32.14 35.07 41.46 49.40 32 15.63 17.34 18.21 20.68 22.05 23.73 26.75 30.24 33.28 36.30 42.88 51.06 33 16.34 18.09 18.97 21.51 22.91 24.63 27.72 31.30 34.43 37.52 44.30 52.72 34 17.04 18.84 19.74 22.34 23.77 25.53 28.70 32.37 35.58 38.75 45.72 54.38 35 17.75 19.59 20.52 23.17 24.64 26.44 29.68 33.43 36.72 39.99 47.14 56.04
36 18.47 20.35 21.30 24.01 25.51 27.34 30.66 34.50 37.87 41.22 48.56 57.70 37 19.19 21.11 22.08 24.85 26.38 28.25 31.64 35.57 39.02 42.45 49.98 59.37 38 19.91 21.87 22.86 25.69 27.25 29.17 32.62 36.64 40.17 43.68 51.40 61.03 39 20.64 22.64 23.65 26.53 28.13 30.08 33.61 37.72 41.32 44.91 52.82 62.69 40 21.37 23.41 24.44 27.38 29.01 31.00 34.60 38.79 42.48 46.15 54.24 64.35
41 22.11 24.19 25.24 28.23 29.89 31.92 35.58 39.86 43.63 47.38 55.66 66.02 42 22.85 24.97 26.04 29.09 30.77 32.84 36.57 40.94 44.78 48.62 57.08 67.68 43 23.59 25.75 26.84 29.94 31.66 33.76 37.57 42.01 45.94 49.85 58.50 69.34
44 24.33 26.53 27.64 30.80 32.54 34.68 38.56 43.09 47.09 51.09 59.92 71.01 45 25.08 27.32 28.45 31.66 33.43 35.61 39.55 44.17 48.25 52.32 61.35 72.67
46 25.83 28.11 29.26 32.52 34.32 36.53 40.55 45.24 49.40 53.56 62.77 74.33 47 26.59 28.90 30.07 33.38 35.22 37.46 41.54 46.32 50.56 54.80 64.19 76.00 48 27.34 29.70 30.88 34.25 36.11 38.39 42.54 47.40 51.71 56.03 65.61 77.66 49 28.10 30.49 31.69 35.11 37.00 39.32 43.53 48.48 52.87 57.27 67.04 79.32 50 28.87 31.29 32.51 35.98 37.90 40.26 44.53 49.56 54.03 58.51 68.46 80.99
51 29.63 32.09 33.33 36.85 38.80 41.19 45.53 50.64 55.19 59.75 69.88 82.65 52 30.40 32.90 34.15 37.72 39.70 42.12 46.53 51.73 56.35 60.99 71.31 84.32 53 31.17 33.70 34.98 38.60 40.60 43.06 47.53 52.81 57.50 62.22 72.73 85.98 54 31.94 34.51 35.80 39.47 41.51 44.00 48.54 53.89 58.66 63.46 74.15 87.65 55 32.72 35.32 36.63 40.35 42.41 44.94 49.54 54.98 59.82 64.70 75.58 89.31
56 33.49 36.13 37.46 41.23 43.32 45.88 50.54 56.06 60.98 65.94 77.00 90.97 57 34.27 36.95 38.29 42.11 44.22 46.82 51.55 57.14 62.14 67.18 78.43 92.64 58 35.05 37.76 39.12 42.99 45.13 47.76 52.55 58.23 63.31 68.42 79.85 94.30 59 35.84 38.58 39.96 43.87 46.04 48.70 53.56 59.32 64.47 69.66 81.27 95.97 60 36.62 39.40 40.80 44.76 46.95 49.64 54.57 60.40 65.63 70.90 82.70 97.63
61 37.41 40.22 41.63 45.64 47.86 50.59 55.57 61.49 66.79 72.14 84.12 99.30 62 38.20 41.05 42.47 46.53 48.77 51.53 56.58 62.58 67.95 73.38 85.55 101.0 63 38.99 41.87 43.31 47.42 49.69 52.48 57.59 63.66 69.11 74.63 86.97 102.6 64 39.78 42.70 44.16 48.31 50.60 53.43 58.60 64.75 70.28 75.87 88.40 104.3 65 40.58 43.52 45.00 49.20 51.52 54.38 59.61 65.84 71.44 77.11 89.82 106.0
66 41.38 44.35 45.85 50.09 52.44 55.33 60.62 66.93 72.60 78.35 91.25 107.6 67 42.17 45.18 46.69 50.98 53.35 56.28 61.63 68.02 73.77 79.59 92.67 109.3 68 42.97 46.02 47.54 51.87 54.27 57.23 62.64 69.11 74.93 80.83 94.10 111.0 69 43.77 46.85 48.39 52.77 55.19 58.18 63.65 70.20 76.09 82.08 95.52 112.6 70 44.58 47.68 49.24 53.66 56.11 59.13 64.67 71.29 77.26 83.32 96.95 114.3
71 45.38 48.52 50.09 54.56 57.03 60.08 65.68 72.38 78.42 84.56 98.37 116.0 72 46.19 49.36 50.94 55.46 57.96 61.04 66.69 73.47 79.59 85.80 99.80 117.6 73 47.00 50.20 51.80 56.35 58.88 61.99 67.71 74.56 80.75 87.05 101.2 119.3 74 47.81 51.04 52.65 57.25 59.80 62.95 68.72 75.65 81.92 88.29 102.7 120.9 75 48.62 51.88 53.51 58.15 60.73 63.90 69.74 76.74 83.08 89.53 104.1 122.6
76 49.43 52.72 54.37 59.05 61.65 64.86 70.75 77.83 84.25 90.78 105.5 124.3 77 50.24 53.56 55.23 59.96 62.58 65.81 71.77 78.93 85.41 92.02 106.9 125.9 78 51.05 54.41 56.09 60.86 63.51 66.77 72.79 80.02 86.58 93.26 108.4 127.6 79 51.87 55.25 56.95 61.76 64.43 67.73 73.80 81.11 87.74 94.51 109.8 129.3 80 52.69 56.10 57.81 62.67 65.36 68.69 74.82 82.20 88.91 95.75 111.2 130.9
81 53.51 56.95 58.67 63.57 66.29 69.65 75.84 83.30 90.08 96.99 112.6 132.6 82 54.33 57.80 59.54 64.48 67.22 70.61 76.86 84.39 91.24 98.24 114.1 134.3 83 55.15 58.65 60.40 65.39 68.15 71.57 77.87 85.48 92.41 99.48 115.5 135.9 84 55.97 59.50 61.27 66.29 69.08 72.53 78.89 86.58 93.58 100.7 116.9 137.6 85 56.79 60.35 62.14 67.20 70.02 73.49 79.91 87.67 94.74 102.0 118.3 139.3
86 57.62 61.21 63.00 68.11 70.95 74.45 80.93 88.77 95.91 103.2 119.8 140.9 87 58.44 62.06 63.87 69.02 71.88 75.42 81.95 89.86 97.08 104.5 121.2 142.6 88 59.27 62.92 64.74 69.93 72.82 76.38 82.97 90.96 98.25 105.7 122.6 144.3 89 60.10 63.77 65.61 70.84 73.75 77.34 83.99 92.05 99.41 107.0 124.0 145.9 90 60.92 64.63 66.48 71.76 74.68 78.31 85.01 93.15 100.6 108.2 125.5 147.6
91 61.75 65.49 67.36 72.67 75.62 79.27 86.04 94.24 101.8 109.4 126.9 149.3 92 62.58 66.35 68.23 73.58 76.56 80.24 87.06 95.34 102.9 110.7 128.3 150.9 93 63.42 67.21 69.10 74.50 77.49 81.20 88.08 96.43 104.1 111.9 129.8 152.6 94 64.25 68.07 69.98 75.41 78.43 82.17 89.10 97.53 105.3 113.2 131.2 154.3 95 65.08 68.93 70.85 76.33 79.37 83.13 90.12 98.63 106.4 114.4 132.6 155.9
96 65.92 69.79 71.73 77.24 80.31 84.10 91.15 99.72 107.6 115.7 134.0 157.6 97 66.75 70.65 72.61 78.16 81.25 85.07 92.17 100.8 108.8 116.9 135.5 159.3 98 67.59 71.52 73.48 79.07 82.18 86.04 93.19 101.9 109.9 118.2 136.9 160.9 99 68.43 72.38 74.36 79.99 83.12 87.00 94.22 103.0 111.1 119.4 138.3 162.6
100 69.27 7~.25 75.24 80.91 84.06 87.97 95.24 104.1 112.3 120.6 139.7 164.3 N is the number of servers. The numerical column headings indicate blocking probability B in %. Table generated by Dan Dexter
N/B 0.01 0.05 0.1
1 .0001 .0005 .0010 2 .0142 .0319 .0452 3 .0860 .1490 .1894 4 .2310 .3533 .4257 5 .4428 .6289 .7342
6 .7110 .9616 1.099 7 1.026 1.341 1.510 8 1.382 1.758 1.958 9 1.771 2.208 2.436
10 2.189 2.685 2.942
11 2.634 3.186 3.470 12 3.100 3.708 4.018 13 3.587 4.248 4.584 14 4.092 4.805 5.166 15 4.614 5.377 5.762
16 5.150 5.962 6.371 17 5.699 6.560 6.991 18 6.261 7.169 7.622 19 6.835 7.788 8.263 20 7.419 8.417 8.914
21 8.013 9.055 9.572 22 8.616 9.702 10.24 23 9.228 10.36 10.91 24 9.848 11.02 11.59 25 10.48 11.69 12.28
26 11.11 12.36 12.97 27 11.75 13.04 13.67 28 12.40 13.73 14.38 29 13.05 14.42 15.09 30 13.71 15.12 15.80
31 14.38 15.82 16.52 32 15.05 16.53 17.25 33 15.72 17.24 17.97 34 16.40 17.95 18.71 35 17.09 18.67 19.44
36 17.78 19.39 20.18 37 18.47 20.12 20.92 38 19.17 20.85 21.67 39 19.87 21.59 22.42 40 20.58 22.33 23.17
41 21.28 23.07 23.93 42 22.00 23.81 24.69 43 22.71 24.56 25.45
0.5 1.0
.0050 .0100 .1025 .1465 .3339 .4291 .6641 .8100 1.065 1.259
1.519 1.758 2.014 2.297 2.543 2.866 3.100 3.460 3.679 4.077
4.279 4.712 4.896 5.363 5.529 6.028 6.175 6.705 6.833 7.394
7.502 8.093 8.182 8.801 8.871 9.518 9.568 10.24 10.27 10.97
10.99 11.71 11.70 12.46 12.43 13.21 13.16 13.96 13.90 14.72
14.64 15.49 15.38 16.26 16.14 17.03 16.89 17.81 17.65 18.59
18.42 19.37 19.18 20.16 19.95 20.95 20.73 21.75 21.51 22.55
22.29 23.35 23.07 24.15 23.86 24.96 24.65 25.77 25.44 26.58
26.23 27.39 27.03 28.21 27.83 29.02
2 5 10
.0200 .0500 .1000 .2103 .3422 .5000 .5545 .7876 1.040 .9939 1.319 1.653 1.497 1.905 2.313
2.047 2.532 3.007 2.633 3.188 3.725 3.246 3.869 4.463 3.883 4.569 5.218 4.540 5.285 5.986
5.213 6.015 6.765 5.901 6.758 7.554 6.602 7.511 8.352 7.313 8.273 9.158 8.035 9.044 9.970
8.766 9.822 10.79 9.505 10.61 11.61 10.25 11.40 12.44 11.01 12.20 13.28 11.77 13.00 14.12
12.53 13.81 14.96 13.30 14.62 15.81 14.08 15.43 16.65 14.86 16.25 17.51 15.65 17.08 18.36
16.44 17.91 19.22 17.23 18.74 20.08 18.03 19.57 20.95 18.83 20.41 21.82 19.64 21.25 22.68
20.45 22.09 23.56 21.26 22.93 24.43 22.07 23.78 25.30 22.89 24.63 26.18 23.71 25.48 27.06
24.53 26.34 27.94 25.36 27.19 28.82 26.18 28.05 29.71 27.01 28.91 30.59 27.84 29.77 31.48
28.68 30.63 32.37 29.51 31.50 33.26 30.35 32.36 34.15
15 20 30
.1500 .2000 .3000 .6278 .7403 .9390 1.231 1.393 1.667 1.899 2.102 2.440 2.607 2.847 3.241
3.344 3.617 4.062 4.103 4.406 4.897 4.878 5.210 5.744 5.668 6.027 6.600 6.469 6.853 7.465
7.280 7.688 8.336 8.099 8.530 9.212 8.926 9.379 10.09 9.760 10.23 10.98 10.60 11.09 11.87
11.44 11.96 12.77 12.29 12.83 13.66 13.15 13.70 14.56 14.01 14.58 15.47 14.87 15.45 16.37
15.73 16.34 17.28 16.60 17.22 18.19 17.47 18.11 19.10 18.35 19.00 20.02 19.22 19.89 20.93
20.10 20.79 21.85 20.98 21.68 22.77 21.87 22.58 23.69 22.75 23.48 24.61 23.64 24.38 25.54
24.53 25.29 26.46 25.42 26.19 27.39 26.32 27.10 28.31 27.21 28.01 29.24 28.11 28.92 30.17
29.00 29.83 31.10 29.90 30.74 32.03 30.80 31.65 32.97 31.71 32.57 33.90 32.61 33.48 34.83
33.51 34.40 35.77 34.42 35.32 36.70 35.33 36.23 37.64
40
.4000 1.117 1.903 2.725 3.569
4.428 5.298 6.178 7.065 7.959
8.857 9.761 10.67 11.58 12.49
13.41 14.33 15.25 16.18 17.10
18.03 18.96 19.89 20.82 21.76
22.69 23.63 24.57 25.50 26.44
27.38 28.33 29.27 30.21 31.16
32.10 33.05 34.00 34.94 35.89
36.84 37.79 38.74
Erlang C Traffic Table
Maximum Offered Load Versus B and N B is in %
44 23.43 25.31 26.22 28.63 29.84 31.19 33.23 35.04 36.23 37.15 38.58 39.69 45 24.15 26.06 26.98 29.44 30.67 32.03 34.10 35.93 37.14 38.07 39.51 40.64
46 24.88 26.82 27.75 30.24 31.49 32.87 34.97 36.83 38.05 39.00 40.45 41.59 47 25.60 27.57 28.52 31.05 32.32 33.72 35.84 37.72 38.96 39.92 41.39 42.54 48 26.34 28.33 29.30 31.86 33.14 34.56 36.72 38.62 39.87 40.84 42.33 43.50 49 27.07 29.10 30.08 32.68 33.97 35.41 37.59 39.52 40.79 41.76 43.27 44.45 50 27.80 29.86 30.86 33.49 34.80 36.26 38.47 40.42 41.70 4?,69 44.21 45.40
51 28.54 30.63 31.64 34.31 35.64 37.11 39.35 41.32 42.61 43.61 45.15 46.36 52 29.28 31.40 32.42 35.12 36.47 37.97 40.23 42.22 43.53 44.54 46.10 47.31 53 30.03 32.17 33.21 35.94 37.31 38.82 41.10 43.12 44.44 45.47 47.04 48.27 54 30.77 32.95 33.99 36.76 38.15 39.67 41.99 44.02 45.36 46.39 47.98 49.22 55 31.52 33.72 34.78 37.59 38.99 40.53 42.87 44.93 46.28 47.32 48.93 50.18
56 32.27 34.50 35.57 38.41 39.83 41.39 43.75 45.83 47.20 48.25 49.87 51.13 57 33.03 35.28 36.37 39.24 40.67 42.25 44.64 46.74 48.12 49.18 50.82 52.09 58 33.78 36.06 37.16 40.07 41.51 43.11 45.52 47.64 49.04 50.11 51.76 53.05 59 34.54 36.85 37.96 40.90 42.36 43.97 46.41 48.55 49.96 51.04 52.71 54.01 60 35.30 37.63 38.76 41.73 43.20 44.83 47.29 49.46 50.88 51.97 53.65 54.96
61 36.06 38.42 39.56 42.56 44.05 45.70 48.18 50.37 51.80 52.90 54.60 55.92 62 36.82 39.21 40.36 43.39 44.90 46.56 49.07 51.27 52.72 53.83 55.55 56.88 63 37.59 40.00 41.16 44.23 45.75 47.43 49.96 52.18 53.64 54.77 56.49 57.84 64 38.35 40.80 41.97 45.06 46.60 48.30 50.85 53.10 54.57 55.70 57.44 58.80 65 39.12 41.59 42.78 45.90 47.45 49.16 51.74 54.01 55.49 56.63 58.39 59.76
66 39.89 42.39 43.58 46.74 48.30 50.03 52.64 54.92 56.42 57.57 59.34 60.72 67 40.66 43.18 44.39 47.58 49.16 50.90 53.53 55.83 57.34 58.50 60.29 61.68 68 41.44 43.98 45.20 48.42 50.01 51.77 54.42 56.75 58.27 59.44 61.24 62.64 69 42.21 44.78 46.02 49.26 50.87 52.65 55.32 57.66 59.20 60.37 62.19 63.60 70 42.99 45.58 46.83 50.10 51.73 53.52 56.21 58.57 60.12 61.31 63.14 64.56
71 43.77 46.39 47.64 50.95 52.59 54.39 57.11 59.49 61.05 62.25 64.09 65.52 72 44.55 47.19 48.46 51.79 53.45 55.27 58.01 60.41 61.98 63.18 65.04 66.48 73 45.33 48.00 49.28 52.64 54.31 56.14 58.90 61.32 62.91 64.12 65.99 67.44 74 46.11 48.81 50.10 53.49 55.17 57.02 59.80 62.24 63.84 65.06 66.94 68.40 75 46.90 49.61 50.92 54.34 56.03 57.90 60.70 63.16 64.76 66.00 67.89 69.37
76 47.68 50.42 51.74 55.19 56.89 58.78 61.60 64.07 65.69 66.94 68.85 70.33 77 48.47 51.23 52.56 56.04 57.76 59.65 62.50 64.99 66.63 67.88 69.80 71.29 78 49.26 52.05 53.38 56.89 58.62 60.53 63.40 65.91 67.56 68.82 70.75 72.25 79 50.05 52.86 54.21 57.74 59.49 61.41 64.30 66.83 68.49 69.76 71.70 73.22 80 50.84 53.68 55.03 58.60 60.36 62.30 65.21 67.75 69.42 70.70 72.66 74.18
81 51.63 54.49 55.86 59.45 61.22 63.18 66.11 68.67 70.35 71.64 73.61 75.14 82 52.43 55.31 56.69 60.30 62.09 64.06 67.01 69.59 71.28 72.58 74.57 76.11 83 53.22 56.13 57.52 61.16 62.96 64.94 67.92 70.52 72.22 73.52 75.52 77.07 84 54.02 56.95 58.35 62.02 63.83 65.83 68.82 71.44 73.15 74.46 76.47 78.04 85 54.81 57.77 59.18 62.88 64.70 66.71 69.73 72.36 74.08 75.40 77.43 79.00
86 55.61 58.59 60.01 63.73 65.57 67.60 70.63 73.28 75.02 76.35 78.38 79.97 87 56.41 59.41 60.84 64.59 66.45 68.48 71.54 74.21 75.95 77.29 79.34 80.93 88 57.21 60.23 61.67 65.45 67.32 69.37 72.45 75.13 76.89 78.23 80.30 81.90 89 58.02 61.06 62.51 66.32 68.19 70.26 73.35 76.06 77.82 79.18 81.25 82.86 90 58.82 61.88 63.34 67.18 69.07 71.15 74.26 76.98 78.76 80.12 82.21 83.83
91 59.62 62.71 64.18 68.04 69.94 72.04 75.17 77.91 79.69 81.06 83.16 84.79 92 60.43 63.54 65.02 68.90 70.82 72.92 76.08 78.83 80.63 82.01 84.12 85.76 93 61.23 64.36 65.86 69.77 71.70 73.81 76.99 79.76 81.57 82.95 85.08 86.73 94 62.04 65.19 66.70 70.63 72.57 74.71 77.90 80.69 82.50 83.90 86.03 87.69 95 62.85 66.02 67.54 71.50 73.45 75.60 78.81 81.61 83.44 84.84 86.99 88.66
96 63.66 66.85 68.38 72.36 74.33 76.49 79.72 82.54 84.38 85.79 87.95 89.62 97 64.47 67.69 69.22 73.23 75.21 77.38 80.63 83.47 85.32 86.74 88.91 90.59 98 65.28 68.52 70.06 74.10 76.09 78.27 81.54 84.39 86.26 87.68 89.87 91.56 99 66.09 69.35 70.90 74.97 76.97 79.17 82.46 85.32 87.20 88.63 90.82 92.53
100 66.91 70.19 71.75 75.84 77.85 80.06 83.37 86.25 88.13 89.58 91.78 93.49 N is the number of servers. The numerical column headings indicate blocking probability B in %. Table generated by Dan Dexter
N/B 0.01 0.05
1 .0001 .0005
2 .0142 .0320
3 .0862 .1497
4 .2318 .3552
5 1.078 1.279
6 .7137 .9672
7 1.030 1.348
8 1.387 1.768
9 1.778 2.220
10 2.198 2.699
11 2.643 3.202
12 3.112 3.726
13 3.600 4.269
14 4.106 4.828
15 4.629 5.402
16 5.167 5.990
17 5.718 6.590
18 6.281 7.201
19 6.856 7.822
20 7.442 8.453
21 8.037 9.093
22 8.642 9.741
23 9.255 10.40
24 9.876 11.06
25 10.50 11.73
26 11.14 12.41
27 11.78 13.09
28 12.43 13.78
29 13.09 14.47
30 13.75 15.17
31 14.42 15.87
32 15.09 16.58
33 15.76 17.30
34 16.44 18.01
35 17.13 18.73
36 17.82 19.46
37 18.52 20.19
38 19.21 20.92
39 19.92 21.66
40 20.62 22.40
41 21.33 23.14
42 22.05 23.88
43 22.76 24.63
Poisson Traffic Table
Maximum Offered Load Versus B and N B is in %
0.1 0.5 1.0 2 5 10 15 20 30 40
.0010 .0050 .0101 .0454 .1035 .1486 .1905 .3379 .4360 .4286 .6722 .8232 1.530 1.970 2.433
1.107 1.537 1.785 1.520 2.037 2.330 1.971 2.571 2.906 2.452 3.132 3.508 2.961 3.717 4.130
3.492 4.321 4.771 4.042 4.943 5.428 4.611 5.580 6.099 5.195 6.231 6.782 5.794 6.893 7.477
6.405 7.567 8.181 7.028 8.251 8.895 7.662 8.943 9.616 8.306 9.645 10.35 8.958 10.35 11.08
9.619 11.07 11.83 10.29 11.79 12.57 10.96 12.52 13.33 11.65 13.26 14.09 12.34 14.00 14.85
13.03 14.74 15.62 13.73 15.49 16.40 14.44 16.25 17.18 15.15 17.00 17.96 15.87 17.77 18.74
16.59 18.53 19.53 17.32 19.31 20.32 18.05 20.08 21.12 18.78 20.86 21.92 19.52 21.64 22.72
20.26 22.42 23.53 21.01 23.21 24.33 21.75 24.00 25.14 22.51 24.79 25.96 23.26 25.59 26.77
24.02 26.38 27.59 24.78 27.18 28.41 25.54 27.99 29.23
.0202 .0513 .1054 .2147 .3554 .5318 .5672 .8177 1.102 1.016 1.366 1.745 2.785 3.090 3.634
2.089 2.613 3.152 2.684 3.285 3.895 3.307 3.981 4.656 3.953 4.695 5.433 4.618 5.425 6.221
5.300 6.169 7.021 5.996 6.924 7.829 6.704 7.690 8.646 7.424 8.464 9.470 8.153 9.246 10.30
8.891 10.04 11.14 9.638 10.83 11.98 10.39 11.63 12.82 11.15 12.44 13.67 11.92 13.26 14.53
12.69 14.07 15.38 13.47 14.89 16.24 14.25 15.72 17.11 15.04 16.55 17.98 15.83 17.38 18.84
16.63 18.22 19.72 17.43 19.06 20.59 18.23 19.90 21.47 19.04 20.75 22.35 19.85 21.59 23.23
20.66 22.45 24.11 21.48 23.30 25.00 22.30 24.15 25.89 23.12 25.01 26.77 23.95 25.87 27.66
24.77 26.73 28.56 25.60 27.60 29.45 26.44 28.46 30.35 27.27 29.33 31.24 28.11 30.20 32.14
28.95 31.07 33.04 29.79 31.94 33.94 30.63 32.81 34.84
.1625 .2231 .3567 .5108 .6832 .8244 1.097 1.376 1.331 1.535 1.914 2.285 2.039 2.297 2.764 3.211 4.148
3.557 3.904 4.517 5.091 4.348 4.734 5.411 6.039 5.155 5.576 6.312 6.991 5.973 6.429 7.220 7.947 6.802 7.289 8.133 8.904
7.639 8.157 9.050 9.864 8.484 9.031 9.972 10.83 9.336 9.910 10.90 11.79 10.19 10.79 11.82 12.76 11.06 11.68 12.75 13.72
11.92 12.57 13.69 14.69 12.79 13.47 14.62 15.66 13.67 14.37 15.56 16.63 14.55 15.27 16.50 17.60 15.43 16.17 17.44 18.57
16.31 17.08 18.38 19.54 17.20 17.99 19.32 20.51 18.09 18.90 20.27 21.48 18.98 19.81 21.21 22.46 19.88 20.73 22.16 23.43
20.77 21.64 23.10 24.41 21.67 22.56 24.05 25.38 22.57 23.48 25.00 26.36 23.48 24.40 25.95 27.33 24.38 25.32 26.91 28.31
25.29 26.24 27.86 29.29 26.19 27.17 28.81 30.26 27.10 28.09 29.76 31.24 28.01 29.02 30.72 32.22 28.92 29.95 31.67 33.20
29.84 30.88 32.63 34.18 30.75 31.81 33.59 35.16 31.66 32.74 34.54 36.14 32.58 33.67 35.50 37.11 33.50 34.60 36.46 38.09
34.42 35.54 37.42 39.07 35.33 36.47 38.38 40.05 36.26 37.41 39.34 41.04
44 23.48 25.38 26.31 28.79 30.05 31.47 33.69 35.74 37.18 38.34 40.30 42.02 45 24.20 26.14 27.08 29.60 30.88 32.32 34.56 36.65 38.10 39.28 41.26 43.00
46 24.93 26.90 27.85 30.41 31.71 33.17 35.44 37.55 39.02 40.22 42.22 43.98 47 25.66 27.65 28.62 31.22 32.53 34.01 36.32 38.46 39.94 41.16 43.18 44.96 48 26.39 28.42 29.40 32.03 33.37 34.87 37.20 39.36 40.87 42.09 44.14 45.94 49 27.13 29.18 30.18 32.85 34.20 35.72 38.08 40.27 41.79 43.03 45.10 46.92 50 27.86 29.95 30.96 33.66 35.03 36.57 38.97 41.18 42.72 43.97 46.06 47.90
51 28.60 30.72 31.74 34.48 35.87 37.43 39.85 42.09 43.65 44.91 47.03 48.89 52 29.34 31.49 32.53 35.30 36.71 38.28 40.73 43.00 44.58 45.85 47.99 49.87 53 30.09 32.26 33.31 36.13 37.55 39.14 41.62 43.91 45.50 46.80 48.95 50.85 54 30.84 33.04 34.10 36.95 38.39 40.00 42.51 44.82 46.43 47.74 49.92 51.83 55 31.59 33.82 34.90 37.78 39.23 40.86 43.40 45.74 47.36 48.68 50.88 52.82
56 32.34 34.60 35.69 38.60 40.07 41.72 44.29 46.65 48.29 49.63 51.85 53.80 57 33.09 35.38 36.48 39.43 40.92 42.59 45.18 47.56 49.22 50.57 52.81 54.78 58 33.85 36.16 37.28 40.26 41.77 43.45 46.07 48.48 50.15 51.51 53.78 55.77 59 34.60 36.95 38.08 41.09 42.61 44.32 46.96 49.40 51.09 52.46 54.74 56.75 60 35.36 37.73 38.88 41.93 43.46 45.18 47.85 50.31 52.02 53.40 55.71 57.73
61 36.13 38.52 39.68 42.76 44.31 46.05 48.75 51.23 52.95 54.35 56.68 58.72 62 36.89 39.31 40.48 43.60 45.16 46.92 49.64 52.15 53.89 55.30 57.64 59.70 63 37.66 40.11 41.29 44.43 46.02 47.79 50.54 53.07 54.82 56.24 58.61 60.68 64 38.42 40.90 42.09 45.27 46.87 48.66 51.43 53.99 55.76 57.19 59.58 61.67 65 39.19 41.70 42.90 46.11 47.73 49.53 52.33 54.91 56.69 58.14 60.54 62.65
66 39.96 42.49 43.71 46.95 48.58 50.41 53.23 55.83 57.63 59.08 61.51 63.64 67 40.74 43.29 44.52 47.79 49.44 51.28 54.13 56.75 58.56 60.03 62.48 64.62 68 41.51 44.09 45.33 48.64 50.30 52.16 55.03 57.67 59.50 60.98 63.45 65.61 69 42.29 44.89 46.15 49.48 51.16 53.03 55.93 58.59 60.44 61.93 64.41 66.59 70 43.07 45.70 46.96 50.33 52.02 53.91 56.83 59.52 61.37 62.88 65.38 67.58
71 43.84 46.50 47.78 51.17 52.88 54.79 57.73 60.44 62.31 63.83 66.35 68.56 72 44.63 47.31 48.60 52.02 53.74 55.66 58.63 61.36 63.25 64.78 67.32 69.54 73 45.41 48.11 49.42 52.87 54.60 56.54 59.54 62.29 64.19 65.73 68.29 70.53 74 46.19 48.92 50.24 53.72 55.47 57.42 60.44 63.21 65.13 66.68 69.26 71.52 75 46.98 49.73 51.06 54.57 56.33 58.30 61.35 64.14 66.07 67.63 70.23 72.50
76 47.76 50.54 51.88 55.42 57.20 59.19 62.25 65.06 67.01 68.58 71.20 73.49 77 48.55 51.36 52.70 56.28 58.07 60.07 63.16 65.99 67.95 69.54 72.17 74.47 78 49.34 52.17 53.53 57.13 58.94 60.95 64.06 66.92 68.89 70.49 73.14 75.46 79 50.13 52.98 54.35 57.98 59.80 61.84 64.97 67.85 69.83 71.44 74.11 76.44 80 50.92 53.80 55.18 58.84 60.67 62.72 65.88 68.77 70.77 72.39 75.08 77.43
81 51.72 54.62 56.01 59.70 61.54 63.61 66.79 69.70 71.72 73.35 76.05 78.41 82 52.51 55.43 56.84 60.55 62.41 64.49 67.70 70.63 72.66 74.30 77.02 79.40 83 53.31 56.25 57.67 61.41 63.29 65.38 68.60 71.56 73.60 75.25 77.99 80.39 84 54.10 57.07 58.50 62.27 64.16 66.27 69.51 72.49 74.54 76.21 78.96 81.37 85 54.90 57.89 59.33 63.13 65.03 67.15 70.43 73.42 75.49 77.16 79.93 82.36
86 55.70 58.72 60.16 63.99 65.91 68.04 71.34 74.35 76.43 78.11 80.91 83.34 87 56.50 59.54 61.00 64.85 66.78 68.93 72.25 75.28 77.38 79.07 81.88 84.33 88 57.31 60.37 61.83 65.72 67.66 69.82 73.16 76.21 78.32 80.02 82.85 85.32 89 58.11 61.19 62.67 66.58 68.53 70.71 74.07 77.14 79.27 80.98 83.82 86.30 90 58.91 62.02 63.51 67.44 69.41 71.61 74.98 78.08 80.21 81.93 84.79 87.29
91 59.72 62.84 64.34 68.31 70.29 72.50 75.90 79.01 81.16 82.89 85.77 88.28 92 60.52 63.67 65.18 69.17 71.17 73.39 76.81 79.94 82.10 83.85 86.74 89.26 93 61.33 64.50 66.02 70.04 72.05 74.28 77.73 80.88 83.05 84.80 87.71 90.25 94 62.14 65.33 66.86 70.91 72.93 75.18 78.64 81.81 83.99 85.76 88.68 91.24 95 62.95 66.16 67.70 71.77 73.81 76.07 79.56 82.74 84.94 86.72 89.66 92.22
96 63.76 66.99 68.55 72.64 74.69 76.97 80.47 83.68 85.89 87.67 90.63 93.21 97 64.57 67.83 69.39 73.51 75.57 77.86 81.39 84.61 86.83 88.63 91.60 94.20 98 65.38 68.66 70.23 74.38 76.45 78.76 82.31 85.55 87.78 89.59 92.58 95.19 99 66.19 69.50 71.08 75.25 77.33 79.65 83.22 86.48 88.73 90.54 93.55 96.17
100 67.01 70.33 71.92 76.12 78.22 80.55 84.14 87.42 89.68 91.50 94.52 97.16 N is the number of servers. The numerical column headings indicate blocking probability B in %. Table generated by Dan Dexter