▁that ▁it ▁could ▁strike ▁another ▁person . ▁In ▁many ▁cases ▁this ▁can ▁be ▁avoided ▁by ▁architect ural ▁design ▁which ▁fav ors ▁doors ▁which ▁open ▁in wards ▁into ▁rooms ▁( from ▁the ▁perspective ▁of ▁a ▁common ▁area ▁such ▁as ▁a ▁cor rid or , ▁the ▁door ▁opens ▁out wards ). ▁In ▁cases ▁where ▁this ▁is ▁in fe as ible , ▁it ▁may ▁be ▁possible ▁to ▁avoid ▁an ▁accident ▁by ▁placing ▁vision ▁pan els ▁in ▁the ▁door . ▁ ▁However , ▁in ward - hing ed ▁doors ▁can ▁also ▁es cal ate ▁an ▁accident ▁by ▁prevent ing ▁people ▁from ▁esc aping ▁the ▁building : ▁people ▁inside ▁the ▁building ▁may ▁press ▁against ▁the ▁doors , ▁and ▁thus ▁prevent ▁the ▁doors ▁from ▁opening . ▁Rel ated ▁acc idents ▁include : ▁ ▁Gr ue ▁Church ▁fire ▁- ▁Gr ue , ▁Norway ▁in ▁ 1 8 2 2 ▁ ▁Victoria ▁Hall ▁Dis aster ▁- ▁S under land , ▁UK ▁in ▁ 1 8 8 3 ▁ ▁Glen ▁Cinema ▁dis aster ▁- ▁P ais ley , ▁UK ▁in ▁ 1 9 2 9 ▁ ▁C oco an ut ▁Gro ve ▁fire ▁- ▁Boston , ▁USA ▁in ▁ 1 9 4 2 ▁ ▁Today , ▁the ▁exterior ▁doors ▁of ▁most ▁large ▁( es pecially ▁public ) ▁buildings ▁open ▁out ward , ▁while ▁interior ▁doors ▁such ▁as ▁doors ▁to ▁individual ▁rooms , ▁offices , ▁su ites , ▁etc . ▁open ▁in ward , ▁as ▁do ▁many ▁exterior ▁doors ▁of ▁houses , ▁particularly ▁in ▁North ▁America . ▁ ▁Do or st ops ▁