** Centre for Transport Studies (CTS) Seminar Series
------------------------------------------------------------
** Identification of Asymmetric Phenomena of Seoul Metro Systems based on Big Data Analytics
** Professor Seungjae LEE (University of Seoul, South Korea)
------------------------------------------------------------
** Date and time: 7 December 2018 @4:00pm
** Location: Room 102A, Chadwick Building, UCL Bloomsbury Campus, Gower St, London, WC1E 6BT, United Kingdom
** Register here: https://ctsseminar-proflee.eventbrite.co.uk
------------------------------------------------------------
Abstract:
We have analyzed how smart card based big data analytics can be used to diagnose and retrofit metro networks in Seoul. Unweight metro networks are transformed to demand and travel time based weighted networks in current and planned expansion lines of metro networks in order to identify weak points in terms of efficiency and equity. These networks have been analyzed using some centrality indices such as degree, betweenness and closeness to measure an effectiveness of retrofits. In particular, long tailed asymmetric phenomena in daily travel activity movements have been analyzed to identify hub stations and corridor lines for faster movements. We have also analyzed big amounts of taxis movements in order to estimate arrival times and locations based on 10 second cumulative 75,000 GPS taxis tracking data. Deep learning predictions of these arrival times would lead to support metro trips as first and last mile services of the MaaS.
------------------------------------------------------------
Biography:
Seungjae LEE is Professor of Transportation Planning in University of Seoul. He obtained PhD in Department of Civil Engineering, UCL in 1994, and worked as a Research Fellow in Department of Statistical Science, UCL, and Korea Transport Institute. He has found and served International Journal of Transportation as an Editor-in-Chief, (ESCI). He has also served several editorial boards of SCI journals such as Transportmetrica, International Journal of Sustainable Transportation and Proceedings of Municipal Engineering, Institution of Civil Engineering.
------------------------------------------------------------
CHECK OUR FUTURE EVENTS: https://goo.gl/5Yo4TN
FOLLOW US ON TWITTER: https://twitter.com/cts_ucl
============================================================
To be on our mailing address, please email: [log in to unmask]<mailto:[log in to unmask]>
########################################################################
To unsubscribe from the UTSG list, click the following link:
https://www.jiscmail.ac.uk/cgi-bin/webadmin?SUBED1=UTSG&A=1
|