er see - Sch iff ahr ts - G es ellschaft ▁still ▁remains ▁leg ally ▁independent . ▁ ▁Route ▁The ▁line ▁runs ▁largely ▁on ▁its ▁own ▁right ▁of ▁way , ▁although ▁the ▁line ▁runs ▁for ▁a ▁few ▁hundred ▁metres ▁on ▁public ▁roads . ▁The ▁ste ep est ▁section ▁at ▁ 4 . 7 ▁percent ▁is ▁located ▁between ▁the ▁stations ▁of ▁Ins ▁and ▁Ins ▁Dorf . ▁▁▁ ▁The ▁B TI ▁ends ▁under ▁B iel ▁S BB ▁station , ▁which ▁is ▁the ▁hub ▁of ▁four ▁S BB ▁lines . ▁The ▁B iel – G ren chen – – ▁and ▁B iel – – Y ver don - les - B ains – ▁lines ▁together ▁form ▁the ▁line ▁known ▁as ▁the ▁J ura ▁Foot ▁Railway . ▁The ▁B iel / B ienne – B ern ▁and ▁the ▁B iel / B ienne – La ▁Ch aux - de - F onds ▁lines ▁also ▁connect ▁at ▁the ▁station . ▁ ▁Reg io Tr am ▁planning ▁ ▁There ▁is ▁a ▁Reg iot ram ▁ag gl omer ation ▁B iel / B ienne ▁project , ▁in ▁which ▁the ▁B TI ▁line ▁would ▁in ▁future ▁be ▁extended ▁as ▁a ▁tram ▁through ▁B iel ▁S BB ▁station ▁and ▁through ▁the ▁city ▁to ▁B ö z ingen feld ▁railway ▁station . ▁Thus , ▁the ▁most ▁important ▁development ▁areas ▁( l iving , ▁work , ▁le is ure ) ▁of ▁the ▁region ▁would ▁be ▁connected ▁without ▁the ▁need ▁to ▁change ▁trains . ▁With ▁a ▁total ▁length ▁of ▁ 2 7 ▁kilometres , ▁the