|   Risk thresh-old  |       Accident rate (collisions/s)  |       % control accident rate  |       Average vehicle speed (m/s)  |       % control average vehicle speed  |       Arrival rate (vehicles/s)  |       % control arrival rate  |    
|   Control  |       0.00372  |       100.00  |       10.54  |       100.00  |       0.816  |       100.00  |    
|   0.7  |       0.00318  |       85.54  |       6.14  |       58.24  |       0.637  |       78.14  |    
|   0.8  |       0.00335  |       90.02  |       6.98  |       66.25  |       0.661  |       81.07  |    
|   0.9  |       0.00318  |       85.54  |       8.54  |       81.02  |       0.724  |       88.69  |    
|   1.0  |       0.00340  |       91.52  |       10.83  |       102.72  |       0.803  |       98.44  |    
|   1.1  |       0.00340  |       91.52  |       12.86  |       121.98  |       0.863  |       105.83  |    
|   1.2  |       0.00350  |       94.13  |       14.72  |       139.66  |       0.903  |       110.75  |    
|   1.3  |       0.00344  |       92.64  |       16.72  |       158.63  |       0.929  |       113.87  |    
|   1.4  |       0.00344  |       92.64  |       18.41  |       174.61  |       0.943  |       115.61  |    
|   1.5  |       0.00426  |       114.68  |       19.69  |       186.75  |       0.957  |       117.33  |