Real Time Traffic Estimation Using Data Expansion

This paper presents a method for estimating traffic volumes on a road network using historical and real-time traffic data when a non-negligible subset of the network links do not have data. The approach involves both an offline phase and a real-time phase. In the offline phase, a bilevel program must be solved, thereby generating a new set of parameters for the real-time phase. The real-time phase is efficient enough to be scalable to full city-wide deployments. Simulations on several test networks show excellent results.

By: Roger Lederman; Laura Wynter

Published in: RC24903 in 2009


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