ããããéœåžå ¬åãšã¯ã1956幎ïŒä»ãã60幎以äžåã§ãïŒå¶å®ã®éœåžå ¬åæ³ã«å®ããããåœãŸãã¯å°æ¹èªæ²»äœãèšçœ®ããå ¬ååã¯ç·å°ãæããŸããäœåºåºå¹¹å ¬åïŒè¡åºå ¬åãè¿é£å ¬åãå°åºå ¬åïŒãéœåžåºå¹¹å ¬åïŒç·åå ¬åãéåå ¬åïŒå€§èŠæš¡å ¬åãåœå¶å ¬åãç·©è¡ç·å°çã«åé¡ãããŠããŸãããã®ãã¡éœåžã¥ããã«é¢é£ã®æ·±ãã®ã¯ãäœåºåºå¹¹å ¬åãšéœåžåºå¹¹å ¬åã«ãªããäž¡è ãåããããšæ±äº¬ã«çŽ8000ç®æãå šåœã§ã¯çŽ10äžç®æãããŸãã
åŸæ¥ã®å ¬åã¯ãåºæ¬çã«å ¬å ±ïŒè¡æ¿ã管çããããšãåæã§ãå ¬å ±è²¡ãšããŠæäœéã®ç¶æ管çããããšããå ¬ç©ç®¡çã®æ å ã§ãã誰ã«ãäœã«ã䜿ãããŠããªããå ¬åã°ãããšããç¶æ³ã§ããã2004幎ã«å°æ¹èªæ²»æ³ãæ¹æ£ãããå ¬åã®æå®ç®¡çè å¶åºŠã«ããç¶æ管çã®æ°éå§èšãé²ã¿ãŸãããããè¡è²¡æ¿ã®æªåãåããŠã2017幎ããå°å ¥ãããP-PFIäºæ¥ã§ã¯ãåçæœèšã«ããããé客é åãã倧ããªèŠçŽ ã«ãªããæ°å®¿äžå€®å ¬åã®ã«ãã§ããšã¬ã¹ã¿ãžãªã®ãããªæŽåç°å¢ããµãŒãã¹æ°Žæºã®åäžãèŠãããããã«ãªã£ãŠããŸãããåå€å±ã®ä¹ å±å€§éå ¬åã®ããã«çŽ40åºãè»ãé£ããã·ã§ããã³ã°ã»ã³ã¿ãŒã®ãããªäºäŸãåºãŠããŠããŸããæãæå 端ãšèšããã®ãã倧éªåå ¬åã倩çå¯ºå ¬åã§å®çŸããŠãã PMOåäºæ¥ã§ãåå°ã®æŽ»çšåã³ç®¡çéå¶ãäžæ¬ããŠæ°éã«ä»»ããé客ããŠåçãäžããåå°æãåŸã圢åŒã§ãããŸãæŽåææ³ãšããŠã¯æšªæµã®ã¢ã¡ãªã«å±±å ¬åãæžè°·ã®ãã€ã·ã¿ããŒã¯ã®ããã«ãåºç€ãšãªãéšåã«åçæœèšãæŽåãããã®äžéšãå ¬åæŽåããç«äœéœåžå ¬åå¶åºŠããããŸãã
æŽåã管çãæ ãè¡æ¿åŽã¯ã財æ¿è² æ ã軜æžããããã«æ§ã ãªæ°éå§èšå¶åºŠãåµèšããå§èšæéãé·æåããããšã«ãã£ãŠãããæŽåæ°Žæºã®é«ãç°å¢æŽåãå³ã£ãŠããŸãããã®ããã«ãæŽåãéå¶ã®ææ³ãã°ãããå è¡ããŠããç¶æ³ãšãããŸãããã®ååããšã¹ã«ã¬ãŒããããšãå ¬åã¯ãã·ã§ããã³ã°ã»ã³ã¿ãŒã®äžåºãã®ãããªãã©ã€ããŒã空éã«ãªã£ãŠããŸãã®ã§ã¯ãªãã§ãããããå ¬åã®ãããªãã¯æ§ã®æ ä¿ã¯å«ç·ã®èª²é¡ãšèããŸãã
äžæ¹ã§ããææãããããã«å ¬åã§ã¯çŠæ¢äºé ã°ãããå¢ããŠããã®ãäºå®ã§ããããããéœåžå ¬åæ³ã¯ãã¹ãããæ³ããšããŠäœãããŸãããããã¯æŠåŸã®å¶å®æã«ãå ¬åãã©ãã©ãäžæ³å æ ãããŠå® å°ã«ãªã£ãããçãšããŠèããããããã®ã§ãå ¬åãä¿è·ããããã®æ³åŸãšããŠäœãããçµç·¯ããããŸããã§ãããäœãããããšãããšãã«ã¯èš±å¯ãå¿ èŠãªåœ¢åŒã«ãªã£ãŠããã®ã§ããããŒã«éã³ãã¹ã±ããŒçŠæ¢ã¯åœããåãç¬ã®æ£æ©ãåã©ãã®ãã·ã£ã®å£°ããåŽæ°Žã®é³ãŸã§ãèŠæ ã®å¯Ÿè±¡ã«ãªãããšããããŸãããéœåžå ¬åæ³ã®äžã§å®ããããåèªæ²»äœã®æ¡äŸã«ãããçŠæ¢äºé ã¯ãç«åšã®äœ¿çšãè¿·æè¡çºçšåºŠãªã®ã§ããè¡æ¿ã¯è¿é£ã®åæ圢æããªãããèŠæ ããªããªãOKããšããã¹ã¿ã³ã¹ãªã®ã§ããéå°ãªçŠæ¢äºé ãçãŸããæ§é ãå ¬åã®ããæ¹ã®èª²é¡ãšèšããŸãã
æ代ããŒãºã«å¯Ÿå¿ããªãããéå¶è²¡æºããããªãã¯æ§ãè¿é£åæãªã©ããã©ã³ã¹ãããªãããéœåžå ¬åã®æªæ¥ããèããå¿ èŠãããããã§ãã