This README file accompanies the dataset representing the multiplex transportation network of London (UK). If you use this dataset in your work either for analysis or for visualization, you should acknowledge/cite the following paper:
“Navigability of interconnected networks under random failures”
Manlio De Domenico, Albert Solé-Ribalta, Sergio Gómez, and Alex Arenas
PNAS 2014 111 (23) 8351-8356
that can be found at the following URL:
http://www.pnas.org/content/111/23/8351.abstract
This work has been supported by European Commission FET-Proactive project PLEXMATH (Grant No. 317614), the European project devoted to the investigation of multi-level complex systems and has been developed at the Alephsys Lab.
Visit
PLEXMATH: http://www.plexmath.eu/
ALEPHSYS: http://deim.urv.cat/~alephsys/
for further details.
Data was collected in 2013 from the official website of Transport for London (https://www.tfl.gov.uk/) and manually cross-checked.
Nodes are train stations in London and edges encode existing routes between stations. Underground, Overground and DLR stations are considered (see https://www.tfl.gov.uk/ for further details). The multiplex network used in the paper makes use of three layers corresponding to:
- The aggregation to a single weighted graph of the networks of stations corresponding to each underground line (e.g., District, Circle, etc)
- The network of stations connected by Overground
- The network of stations connected by DLR
There are 369 nodes in total, labelled with integer ID between 0 and 368. The multiplex is undirected (with only one direction specified) and weighted, stored as edges list in the file
london_transport_multiplex.edges
with format
layerID nodeID nodeID weight
The IDs of all layers are stored in
london_transport_layers.txt
The IDs of nodes, together with their geographical coordinates (latitude and longitude in deg) can be found in the file
london_transport_nodes.txt
For completeness, we provide in the file
london_transport_raw.edges
with format
Line Station Station
the raw list of connections between stations specifying the Tube line in plain text. This should facilitate the construction of a multiplex network with up to 13 layers (11 Underground lines + Overground + DLR)
As part of the study, we have collected information about real disruptions (“no “service” status) in London transport from Twitter (see the paper and its suppl. inf. for further details). Here, we provide the disrupted multiplex networks used in the study, i.e., the multiplex networks constructed by accounting for specific disruptions. In file
london_transport_disruptions_summary.txt
we list the disruptions considered, providing the following details:
DisruptionID Line Station_A Station_B Frequency(in %) Affected_nodes(in %)%
whereas in the folder
Disruptions
we stored the multiplex networks in the same format as described above. The name of each file is
london_transport_multiplex_XXX.edges
where the disruption ID is placed instead of XXX.
This LONDON MULTIPLEX TRANSPORTATION NETWORK DATASET is made available under the Open Database License: http://opendatacommons.org/licenses/odbl/1.0/. Any rights in individual contents of the database are licensed under the Database Contents License: http://opendatacommons.org/licenses/dbcl/1.0/
You should find a copy of the above licenses accompanying this dataset. If it is not the case, please contact us (see below).
A friendly summary of this license can be found here:
http://opendatacommons.org/licenses/odbl/summary/
and is reported in the following.
====================================================== ODC Open Database License (ODbL) Summary
This is a human-readable summary of the ODbL 1.0 license. Please see the disclaimer below.
You are free:
- To Share: To copy, distribute and use the database.
- To Create: To produce works from the database.
- To Adapt: To modify, transform and build upon the database.
As long as you:
-
Attribute: You must attribute any public use of the database, or works produced from the database, in the manner specified in the ODbL. For any use or redistribution of the database, or works produced from it, you must make clear to others the license of the database and keep intact any notices on the original database.
-
Share-Alike: If you publicly use any adapted version of this database, or works produced from an adapted database, you must also offer that adapted database under the ODbL.
-
Keep open: If you redistribute the database, or an adapted version of it, then you may use technological measures that restrict the work (such as DRM) as long as you also redistribute a version without such measures.
======================================================
If you find any error in the dataset or you have questions, please contact
Manlio De Domenico
University of Padua
Padua (Italy)
email: manlio.dedomenico@unipd.it web: http://manliodedomenico.com/