Publication

Generating probabilistic path observation from GPS data for route choice modeling

Michel Bierlaire
2009
Conference Papers

Abstract

Map matching algorithms are the conventional way to generate path observations from GPS data for route choice models. The deterministic matching may introduce extra biases to parameters of route choice models if the matching is wrong. In this paper, a new methodology is proposed to probabilistically generate path representation from GPS location data and the underlying network. This methodology takes advantage of both spatial and temporal relationships existing in the location data and the network. The generated result includes a set of potential true paths, along with a probability of each proposed path to have been the actual path. An algorithm is designed and applied to a simulated trip.

Official source

https://infoscience.epfl.ch/entities/publication/21b9a21e-2f7e-4e83-9015-193cfd04e423

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Michel Bierlaire
2009
Conference Papers

Abstract

Official source

https://infoscience.epfl.ch/entities/publication/21b9a21e-2f7e-4e83-9015-193cfd04e423

About this result

Related concepts (32)

Route assignment

Route assignment, route choice, or traffic assignment concerns the selection of routes (alternatively called paths) between origins and destinations in transportation networks. It is the fourth step in the conventional transportation forecasting model, following trip generation, trip distribution, and mode choice. The zonal interchange analysis of trip distribution provides origin-destination trip tables. Mode choice analysis tells which travelers will use which mode.

Mode choice

Mode choice analysis is the third step in the conventional four-step transportation forecasting model of transportation planning, following trip distribution and preceding route assignment. From origin-destination table inputs provided by trip distribution, mode choice analysis allows the modeler to determine probabilities that travelers will use a certain mode of transport. These probabilities are called the modal share, and can be used to produce an estimate of the amount of trips taken using each feasible mode.

Methodology

In its most common sense, methodology is the study of research methods. However, the term can also refer to the methods themselves or to the philosophical discussion of associated background assumptions. A method is a structured procedure for bringing about a certain goal, like acquiring knowledge or verifying knowledge claims. This normally involves various steps, like choosing a sample, collecting data from this sample, and interpreting the data. The study of methods concerns a detailed description and analysis of these processes.

Related publications (2)

Generating probabilistic path observation from GPS data for route choice modeling

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