Kammala wannan jumla: DRR ya zo lardin bayan ya ga rikicewar zirga-zirga bayan bala'i kamar San Francisco na 1989,
Girgizar kasa ta Los Angeles a shekara ta 1994, harin ta'addanci na 11 ga Satumba. An yanke shawarar cewa BC za ta buƙaci tsarin don sarrafa zirga-zirgar ababen hawa kuma BC ta zama yanki na farko a duniya don aiwatar da shirin hanya na bala'in bala'i a 1995. A cikin shirin na asali, an yi la'akari da hanyoyi na Vancouver kawai amma daga bisani ya fadada zuwa hanyoyin ruwa, jiragen kasa da sufuri na iska.