Fundamental diagram of traffic flow

（重定向自Fundamental Diagram）

Figure 1: Sample traffic flow macroscopic fundamental diagram

Figure 2: Space-time diagram for the ith link in a traffic flow network

The fundamental diagram of traffic flow is a diagram that gives a relation between the traffic flux (vehicles/hour) and the traffic density (vehicles/km). A macroscopic traffic model involving traffic flux, traffic density and velocity forms the basis of the fundamental diagram. It can be used to predict the capability of a road system, or its behaviour when applying inflow regulation or speed limits.

单词	Fundamental Diagram
释义	Fundamental Diagram 英语百科 Fundamental diagram of traffic flow （重定向自Fundamental Diagram） The fundamental diagram of traffic flow is a diagram that gives a relation between the traffic flux (vehicles/hour) and the traffic density (vehicles/km). A macroscopic traffic model involving traffic flux, traffic density and velocity forms the basis of the fundamental diagram. It can be used to predict the capability of a road system, or its behaviour when applying inflow regulation or speed limits.
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