憎恶
发表于 2025-3-25 04:40:16
The macroscopic determination of speed and flow of a highway traffic streamthe speeds of, and headways between, individual vehicles have been used to obtain relationships for the whole traffic stream. An alternative approach to the determination of speed/flow relationships is the use of macroscopic relationships obtained by the observation of stream behaviour.
Flu表流动
发表于 2025-3-25 10:42:15
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Kidney-Failure
发表于 2025-3-25 15:36:17
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带伤害
发表于 2025-3-25 16:45:53
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narcotic
发表于 2025-3-25 22:12:05
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尽管
发表于 2025-3-26 01:13:51
The relationship between speed, flow and density of a highway traffic streamWhen considering the flow of traffic along a highway three descriptors are of considerable significance. They are the speed and the density or concentration, which describe the quality of service experienced by the stream; and the flow or volume, which measures the quantity of the stream and the demand on the highway facility.
minimal
发表于 2025-3-26 04:58:29
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粗糙滥制
发表于 2025-3-26 10:05:56
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GROUP
发表于 2025-3-26 14:50:03
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choroid
发表于 2025-3-26 17:55:18
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