01478665

Component

The splitting rate model recently proposed by Smith and Mounce is a traffic evolution model established on a link-node network representation, which overcomes the unrealism in traditional path-based models, and provides the ease of implementing control strategies at nodes. While Smith's model offers a new regime for modeling traffic evolution, it contains an ad-hoc step of flow adjustment, for the purpose of maintaining the flow conservation. The additional adjustment in Smith's approach results in difficulties in analyzing system's properties. This paper proposes a general formulation for a class of flow splitting models, which endogenously preserves the flow conservation. The modeling framework provides the ease for constructing various day-to-day traffic assignment models, and serves as a bridge connecting the splitting rate model with the link-based model. A numerical example demonstrates the implementation of the proposed modeling framework, as well as its convergence to user equilibrium.

This paper was sponsored by TRB committee ADB30(2) Network Equilibrium Modeling.

01470560

13-5236

English

21p

2013

Transportation Research Board 92nd Annual Meeting

Digital/other

Figures; References

Equilibrium (Systems); Network links; Network nodes; Traffic assignment; Traffic flow theory; Traffic models

Data and Information Technology; Highways; Planning and Forecasting; I21: Planning of Transport Infrastructure; I71: Traffic Theory

Transportation Research Board Annual Meeting 2013 Paper #13-5236

TRIS, TRB, ATRI

Feb 5 2013 12:59PM