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Table 4 Uncertainty ranges of model parameter and response variable

From: Modelling travel time distribution under various uncertainties on Hanshin expressway of Japan

Parameter

Traffic volume (veh/hr)

Rain fall (mm/hr)

Travel time (seconds)

Minimum value

190

0

503

Maximum value

2429

19

4383

Average value

1222

0.20

784

Standard deviation

589

0.97

350

Distribution type

Lognormal

Exponential

 

Distribution parameter

μ = 6.95; σ = 0.61

λ = 5.23

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