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Accurate estimation of travel times on the traffic data extracted from aerial image time series

Shah, Mihir (2013) Accurate estimation of travel times on the traffic data extracted from aerial image time series. Master's, Technical University Munich.

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Abstract

The ground stationary measurement devices are barely able to handle the daily traffic volumes and thus there is a high chance they could fail in situations arising from catastrophes or traffic disasters. Therefore, a real-time airborne monitoring system for such unforeseen circumstances was developed in the last years at the German Aerospace Centre (DLR). This system has the capacity to estimate road traffic information such as vehicle positions and vehicle velocities by tracking through image sequences. This Thesis focuses on developing a robust and feasible algorithm for automatic estimation of travel times on a motorway from the extracted traffic data using aerial image sequences. The used aerial image time series were captured on the motorways of Cologne and Munich by the airborne monitoring system. Preliminary analysis was carried out on the image data and individual vehicle velocities were derived from the image time series and consolidated. NAVTEQ road database was used to detect road areas along the motorway so that the tracked vehicles can be assigned to a road segment and point-to-point travel times for shorter distances can be obtained. Travel times for the route are derived and also predicted for some road segments by taking into account the traffic flow. The approach for the calculation of travel times is based on the identification of traffic state. For the validation of proposed methods, results are also compared with the manual deductions of ground stationary infrastructure as well as with the times recorded through the ground run campaign along a 16 km motorway segment of Munich by an ADAC reference vehicle. The conclusion and shortcomings of the approach are discussed at the end of the thesis.

Item URL in elib:https://elib.dlr.de/86669/
Document Type:Thesis (Master's)
Title:Accurate estimation of travel times on the traffic data extracted from aerial image time series
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Shah, MihirDLRUNSPECIFIED
Date:2013
Refereed publication:No
Open Access:Yes
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Number of Pages:65
Status:Published
Keywords:Travel time, aerial image series, traffic parameter
Institution:Technical University Munich
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Transport
HGF - Program Themes:Traffic Management (old)
DLR - Research area:Transport
DLR - Program:V VM - Verkehrsmanagement
DLR - Research theme (Project):V - Projekt VABENE (old)
Location: Oberpfaffenhofen
Institutes and Institutions:Remote Sensing Technology Institute > Photogrammetry and Image Analysis
Deposited By: Kurz, Dr.-Ing. Franz
Deposited On:12 Dec 2013 15:51
Last Modified:31 Jul 2019 19:43

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