▁improve ▁the ▁connection ▁to ▁Spiel berg of . ▁So ▁in ▁ 1 9 7 5 , ▁operations ▁ended ▁on ▁the ▁Lang en stein bach ▁station – L angen stein bach ▁Süd ▁section , ▁which ▁had ▁been ▁re open ed ▁in ▁ 1 9 6 6 . ▁The ▁new ▁line ▁also ▁runs ▁closer ▁to ▁the ▁centre ▁in ▁It ters bach ▁than ▁the ▁route ▁used ▁by ▁the ▁met re ▁gauge ▁line . ▁ ▁In ▁ 1 9 7 9 , ▁the ▁Bus en bach – Re ichen bach ▁section ▁was ▁real igned ▁and ▁short ened . ▁In ▁ 2 0 1 1 , ▁a ▁short ▁double ▁track ▁section ▁was ▁also ▁built ▁between ▁Lang en stein bach ▁and ▁the ▁newly ▁created ▁station ▁of ▁Sch ieß h ütt en ä cker . ▁ ▁Oper ations ▁ ▁The ▁It ters bach ▁line ▁has ▁been ▁served ▁during ▁the ▁day time ▁every ▁ 3 0 ▁minutes ▁by ▁line ▁S ▁ 1 1 ▁of ▁the ▁Kar ls ru he ▁Stadt bahn ▁since ▁ 1 9 9 4 . ▁Pre viously ▁the ▁service ▁on ▁both ▁the ▁line ▁to ▁Bad ▁Her ren al ber ▁and ▁to ▁It ters bach ▁had ▁been ▁called ▁line ▁A . ▁The ▁trains ▁to ▁and ▁from ▁It ters bach ▁run ▁over ▁the ▁Alb ▁Valley ▁Railway ▁and ▁continue ▁through ▁Kar ls ru he ▁and ▁usually ▁end ▁on ▁the ▁Hard t ▁Railway ▁( H ard t bahn ). ▁In ▁the ▁peak ▁hour ▁additional ▁express ▁services ▁are ▁run . ▁No ▁fre ight ▁traffic ▁oper ates ▁on ▁the ▁line . ▁ ▁The ▁platform