READ ME File For routes.* from 'Shape files for Phd thesis 'Traveling in the Roman mediterranean a gis approach' Dataset DOI: 10.5258/SOTON/D1107 ReadMe Author: David Potts, University of Southampton 0000-0003-2821-1603, This dataset supports the thesis entitled Travelling in the Roman Mediterranean a GIS approach AWARDED BY: University of Southampton DATE OF AWARD: 2019 DESCRIPTION OF THE DATA This data set includes the data grid used in the thesis, standard gis software can access this data This dataset contains: This shape file includes location detaiils for all of the data grid used in this thesis with the following data entries Field name Meaning length Length of this link source Source vertex target Target vertex season_id Season of this node 1=winter,2=spring,3=summer,4=autumn night_mode Set if this link refers to a night mode X1 x coordinate of source vertex Y1 y coordinate of the source vertex X2 x coordinate of target vertex Y2 y coordinate of target vertex to_cost Cost of moving from source to target reverse_cost Cost of moving from target to source end_node Set if this a port node Parent_port_id Id off port if this is a source or target refers to a port location Date of data collection: generated from 2009 to 2013 Information about geographic location of data collection: The mediterranean basin Licence: CC BY Related projects/Funders: None Related publication: Travelling in the Roman Mediterranean a GIS approach Date that the file was created: Feb/2019