Abstract
This chapter introduces the Link Transmission Model of network traffic dynamics, in which each link is homogeneous with unifiable and FIFO traffic flow. In particular, with the triangular fundamental diagram, the Link Transmission Model complements Newell's simplified kinematic wave model. The Link Transmission Model tracks the evolution of the boundary cumulative flows of a link, given the initial cumulative flows and external demand and supply. Newell's simplified kinematic wave model then can be used to calculate traffic conditions inside each link. Hence, the Link Transmission Model is fundamentally different from the Cell Transmission Model, which tracks the evolution of the densities on a link, given the initial densities and external demand and supply.
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