▁corners ▁may ▁be ▁negoti ated ▁compared ▁with ▁a ▁conventional ▁ad hes ion ▁railway . ▁Typ ical ▁high ▁speed ▁train ▁designs ▁have ▁radius ▁of ▁turn ▁of ▁ 7   km , ▁with ▁consequ ently ▁few ▁options ▁for ▁new ▁routes ▁within ▁developed ▁countries , ▁where ▁almost ▁all ▁of ▁the ▁land ▁is ▁under ▁individual ▁or ▁corpor ate ▁ownership . ▁ ▁In ▁his ▁book , ▁Sh il ov sky ▁describes ▁a ▁form ▁of ▁on - track ▁bra king , ▁which ▁is ▁feas ible ▁with ▁a ▁mon or ail , ▁but ▁would ▁ups et ▁the ▁direction al ▁stability ▁of ▁a ▁conventional ▁rail ▁vehicle . ▁This ▁has ▁the ▁potential ▁of ▁much ▁shorter ▁stopping ▁distances ▁compared ▁with ▁conventional ▁wheel ▁on ▁steel , ▁with ▁a ▁corresponding ▁reduction ▁in ▁safe ▁separation ▁between ▁trains . ▁The ▁result ▁is ▁potentially ▁higher ▁occup ancy ▁of ▁the ▁track , ▁and ▁higher ▁capacity . ▁ ▁Red u ced ▁total ▁system ▁cost ▁▁ ▁While ▁the ▁individual ▁vehicles ▁are ▁likely ▁to ▁be ▁expensive , ▁the ▁greatest ▁cost ▁ar ises ▁from ▁the ▁construction ▁and ▁maintenance ▁of ▁the ▁permanent ▁way , ▁which , ▁for ▁a ▁single ▁rail ▁at ▁ground ▁level ▁must ▁be ▁che aper . ▁ ▁Ben ign ▁failure ▁modes ▁▁ ▁The ▁angular ▁momentum ▁in ▁the ▁gy ros ▁is ▁so ▁high ▁that ▁loss ▁of ▁power ▁will ▁not ▁present ▁a ▁ha z ard ▁for ▁a ▁good ▁half - hour ▁in ▁a ▁well ▁designed ▁system . ▁ ▁Red u ced ▁weight ▁▁ ▁Sh il ov sky ▁claimed ▁his ▁designs ▁were ▁actually ▁l ighter ▁than ▁the ▁equivalent ▁du o - ra il ▁vehicles .