Research Article
Theoretical Comparison of the Effects of Different Traffic Conditions on Urban Road Traffic Noise
Table 1
Specifications of traffic speed in different traffic conditions.
| | Traffic condition | Fitted speed distribution | Minimum speed (km/h) | Maximum speed (km/h) | Average speed (km/h) | SD of speed (km/h) |
| | Over-saturated congestion | Exponential distribution | 1 | 15.5 | 10.37 | 2.74 | | Under saturated flow | Normal distribution | 25 | 55 | 38.14 | 6.46 | | Free flow | Log-normal distribution | 35 | 55 | 47.18 | 5.5 | | Congestion | Gamma distribution | 10 | 25 | 14.53 | 3.91 | | Accelerated flow | Beta distribution | 1 | 45 | 27.41 | 13.15 | | Decelerated flow | Chi-square distribution | 1 | 35 | 18.76 | 11.82 |
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