▁and ▁Fair cl ough ▁Civil ▁Engineering ▁Ltd ▁and ▁was ▁formally ▁opened ▁by ▁David ▁Mitchell ▁MP , ▁Minister ▁of ▁State ▁for ▁Transport , ▁on ▁ 1 0 ▁March ▁ 1 9 8 7 . ▁ ▁Dem on str ations ▁were ▁held ▁on ▁ 1 4 , ▁ 1 5 , ▁ 2 0 , ▁ 2 1 ▁and ▁ 2 2 ▁March ▁ 1 9 8 7 ▁at ▁a ▁spe cially - construct ed ▁railway ▁station ▁at ▁Deb dale ▁Park ▁and ▁ticket ▁hold ers ▁were ▁treated ▁to ▁a ▁short ▁ride ▁on ▁the ▁D LR ▁vehicle ▁along ▁a ▁ ▁stretch ▁of ▁track , ▁from ▁just ▁north ▁of ▁the ▁Hy de ▁Road ▁j unction ▁to ▁just ▁south ▁of ▁the ▁closed ▁Red d ish ▁dep ot . ▁The ▁D LR ▁train ▁was ▁spe cially ▁fitted ▁with ▁a ▁p ant ograph ▁and ▁power ed ▁by ▁overhead ▁line , ▁and ▁was ▁driven ▁manually ▁rather ▁than ▁in ▁automatic ▁mode , ▁which ▁was ▁to ▁be ▁normal ▁practice ▁when ▁in ▁operation ▁on ▁the ▁D ock lands ▁system . ▁The ▁test ▁track ▁was ▁closed ▁to ▁normal ▁heavy ▁rail ▁traffic ▁on ▁demonstr ation ▁days ▁and , ▁at ▁night , ▁the ▁D LR ▁train ▁was ▁station ed ▁in ▁a ▁s iding ▁and ▁the ▁line ▁was ▁re - open ed ▁to ▁fre ight ▁trains . ▁An ▁exhibition ▁also ▁exhib ited ▁examples ▁of ▁street ▁track , ▁overhead ▁line ▁and ▁platform ▁facilities . ▁ ▁After ▁the ▁public ▁event , ▁Deb dale ▁Park ▁station ▁was ▁dis m ant led ▁and ▁the ▁tim ber ▁platform ▁was ▁used ▁to ▁build ▁the