line       speed  length construction begun  expected start of revenue services
0  svilengrad - turkish border  200 km / h   19 km               2010                                2012
1    dimitrovgrad - svilengrad  200 km / h   70 km               2012                                2013
2             plovdiv - burgas  200 km / h  291 km               2010                                2013
3              sofia - plovdiv  200 km / h  156 km               2010                                2015
4              sofia - radomir  200 km / h   53 km               2014                                2017
5             sofia - dragoman  200 km / h   44 km               2014                                2017
6                vidin - sofia  200 km / h  222 km            unknown                                2020

Table as JSON:
{"line":{"0":"svilengrad - turkish border","1":"dimitrovgrad - svilengrad","2":"plovdiv - burgas","3":"sofia - plovdiv","4":"sofia - radomir","5":"sofia - dragoman","6":"vidin - sofia"},"speed":{"0":"200 km \/ h","1":"200 km \/ h","2":"200 km \/ h","3":"200 km \/ h","4":"200 km \/ h","5":"200 km \/ h","6":"200 km \/ h"},"length":{"0":"19 km","1":"70 km","2":"291 km","3":"156 km","4":"53 km","5":"44 km","6":"222 km"},"construction begun":{"0":"2010","1":"2012","2":"2010","3":"2010","4":"2014","5":"2014","6":"unknown"},"expected start of revenue services":{"0":2012,"1":2013,"2":2013,"3":2015,"4":2017,"5":2017,"6":2020}}