Multilevel time-series modeling of mobility trends - Final Report

Harm Jan Boonstra, Jan van den Brakel, Sumon Das

Research output: Working paper / PreprintDiscussion paper


This report describes the time series models developed for the mobility trend estimation project carried out by Statistics Netherlands in collaboration with KiM/Rijkswaterstaat. First, direct estimates along with standard error estimates are obtained for each year in the period 1999-2017 from the microdata of the Dutch Travel Survey for a detailed cross-classification by person characteristics sex and age class and trip leg characteristics mode and purpose. Consequently, these direct estimates are smoothed by modeling them using multi-level time series models that account for influential outliers as well as for the redesigns of the survey within the Ɵme span considered. Two target variables are modeled in this way: the number of trip legs per person per day and the distance traveled per trip leg. The models are specified in a hierarchical Bayesian framework and
esƟmated using a Markov Chain Monte Carlo simulation method. From the model outputs smooth trend esƟmates can be computed at various aggregation levels for the mean number of trip legs per person per day and the mean distance traveled per trip leg, as well as for derived quantities such as the mean distance per person per day. We discuss the model building and evaluation processes as well as the results based on the fitted models.
Original languageEnglish
PublisherStatistics Netherlands
Number of pages65
Publication statusPublished - 27 Sept 2019


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