Temporal aggregation and spatio-temporal traffic modeling

Marco Percoco

Journal of Transport Geography, 2015, vol. 46, issue C, 244-247

Abstract: Traffic forecasting is crucial for policy making in the transport sector. Recently, Selby and Kockelman (2013) have proposed spatial interpolation techniques as suitable tools to forecast traffic at different locations. In this paper, we argue that an eventual source of uncertainty over those forecasts derives from temporal aggregation. However, we prove that the spatio-temporal correlation function is robust to temporal aggregations schemes when the covariance of traffic in different locations is separable in space and time. We prove empirically this result by conducting an extensive simulation study on the spatial structure of the Milan road network.

Keywords: Traffic forecasting; Uncertainty; Spatial–temporal correlation; Covariance separability (search for similar items in EconPapers)
Date: 2015
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Persistent link: https://EconPapers.repec.org/RePEc:eee:jotrge:v:46:y:2015:i:c:p:244-247

DOI: 10.1016/j.jtrangeo.2015.07.001

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