src,dst,relationship,cost
"Amsterdam","Utrecht","EROAD",46
"Amsterdam","Den Haag","EROAD",59
"Den Haag","Rotterdam","EROAD",26
"Amsterdam","Immingham","EROAD",369
"Immingham","Doncaster","EROAD",74
"Doncaster","London","EROAD",277
"Hoek van Holland","Den Haag","EROAD",27
"Felixstowe","Hoek van Holland","EROAD",207
"Ipswich","Felixstowe","EROAD",22
"Colchester","Ipswich","EROAD",32
"London","Colchester","EROAD",106
"Gouda","Rotterdam","EROAD",25
"Gouda","Utrecht","EROAD",35
"Den Haag","Gouda","EROAD",32
"Hoek van Holland","Rotterdam","EROAD",33