北海道地区自然災害科学資料センター報告
Vol.34, 25-36, 2021࢖ࣥࣇࣛࡢࣛ࢖ࣇࢧ࢖ࢡ࣐ࣝࢿࢪ࣓ࣥࢺ࡜ࢧࢫࢸ࢖ࢼࣅࣜࢸ࢕Infrastructure Life-Cycle Management and Sustainabilityᶓ⏣ ᘯ 11㸪໭ᾏ㐨኱Ꮫ኱Ꮫ㝔ᕤᏛ◊✲㝔ᅵᮌᕤᏛ㒊㛛Hiroshi Yokota11㸪Division of Civil Engineering, Faculty of Engineering, Hokkaido UniversityAbstract
Social infrastructure has to be thoroughly planned, designed, executed and maintained tokeep structural performance over its corresponding requirements throughout the life-cycle.
However, those suffering serious damages in structural members have been often found due
to various reasons. One of the reasons is lack of total management of the infrastructure. Thelife-cycle management is an organized system to support engineering-based decision making
for ensuring structural performance at the design, execution, maintenance, and all related
work during its life-cycle. The life-cycle management is implemented according to thelife-cycle management scenario in which balance of several sustainability indicators would beconsidered with ensuring overall sustainability. This article presents the concept andframework of the life-cycle management of infrastructure to ensure sustainability during thelife-cycle.
Key Words: Infrastructure, life-cycle management, structural performance, sustainability࣮࣮࢟࣡ࢻ㸸♫఍࢖ࣥࣇࣛ㸪ࣛ࢖ࣇࢧ࢖ࢡ࣐ࣝࢿࢪ࣓ࣥࢺ㸪ᵓ㐀ᛶ⬟㸪ࢧࢫࢸ࢖ࢼࣅࣜࢸ࢕1㸬ࡣࡌࡵ࡟࢖ࣥࣇࣛࡣ㸪ࠕᕷẸࡀᣢ⥆ྍ⬟࡛㇏࠿࡞♫఍⤒῭άືࢆႠࡳ㸪⏕άࡢᏳ඲࣭Ᏻᚰࢆ☜ಖࡋ㸪ᅜᅵࡢ᭷ຠά⏝ࢆྍ⬟࡟ࡍࡿࡓࡵ࡟㸪♫఍ⓗ࡟ඹ᭷ࡉࢀࡿࡶࡢࠖ࡜ᐃ⩏ࡉࢀࡿ㸬ࡑࡢ㔜せᛶ࡟ࡘ࠸࡚ᨵࡵ࡚✏ࢆ㉳ࡇࡍᚲせࡶ࡞࠸ࡀ㸪࢖ࣥࣇࣛࡣᕷẸ⏕άࢆᨭ࠼㸪ேࠎࡢ♫఍⤒῭άືࡢⓎᒎ࡟୙ྍḞ࡛࠶ࡿ࡜࡜ࡶ࡟㸪࡜ࡁ࡟ࡣ⅏ᐖ࠿ࡽேࠎࢆಖㆤࡋ㸪ᛌ㐺࡛Ᏻ඲࡞⏕άࢆ☜ಖࡍࡿࡇ࡜
࡟ࡶ㈉⊩ࡋ࡚࠸ࡿ㸬࢖ࣥࣇࣛ࡟ࡣேᕤⓗ࡟ᵓ⠏ࡋࡓࡶࡢ࡜㸪Ἑᕝ㸪ᾏᓊ➼ࡢ⮬↛⏤᮶ࡢࡶࡢࡀ࠶ࡿࡀ㸪ᮏ✏࡛ࡣ๓⪅ࢆ࢖ࣥࣇࣛ࡜⛠ࡍࡿ㸬࢖ࣥࣇࣛࡢᩚഛ࡟ࡼࡗ࡚㸪ேࠎࡣྛ✀⏘ᴗࡢⓎᒎࡸ≀ὶ㸪ேὶࢆຍ㏿໬ࡉࡏ࡚ࡁࡓ㸬≉࡟⏘ᴗ㠉࿨௨㝆ࡇࡢഴྥࡣຍ㏿ᗘⓗ࡟㢧ⴭ࡟࡞ࡗ࡚࠾ࡾ㸪⌧ᅾ࡛ࡶⓎᒎ㏵ୖᅜࢆ୰ᚰ࡟㸪࢖ࣥࣇࣛᩚഛࡢ⇕ࡣ෭ࡵࡿࡇ࡜ࡣ࡞࠸㸬୍᪉࡛㸪⭾኱࡞࢖ࣥࣇ
ࣛࡢᩚഛࡣ㸪㈨※ᾘ㈝ࢆࡉࡽ࡟ቑ኱ࡉࡏ㸪ᆅ⌫⎔ቃࢆ⃭ኚࡉࡏ࡚ࡁࡓ㸬↓ᛮ៖࡞㈨※ࡢᾘ㈝ࡣே㛫ࢆྵࡵࡓ⏕≀࠾ࡼࡧᆅ⌫ࡑࡢࡶࡢࡢᏑ⥆࡟኱ࡁ࡞⬣ጾ࡛࠶ࡿࡇ࡜ࡣ᫂ࡽ࠿࡛࠶ࡿ㸬1972 ᖺ25࡟ࢫࢺࢵࢡ࣒࡛࣍ࣝ㛤ദࡉࢀࡓᅜ㐃ே㛫⎔ቃ఍㆟࡟࠾࠸࡚ே㛫⎔ቃᐉゝࡀ᥇ᢥࡉࢀ㸪ࠕ✵Ẽ㸪Ỉ㸪ᅵᆅ㸪᳜≀㸪ື≀ࢆྵࡴᆅ⌫ࡢ㈨※ࡣ㸪⌧ୡ௦ࡔࡅ࡛࡞ࡃᑗ᮶ୡ௦ࡢ฼┈࡜࡞ࡿࡼ࠺࡟㐺ษ࡟࣐ࢿࢪ࣓ࣥࢺࡉࢀࡡࡤ࡞ࡽ࡞࠸ࠖ࡜ࡉࢀࡓ㸬ࡑࢀ௨㝆㸪ࡍ࡭࡚ࡢάື࡟࠾࠸࡚⎔ቃࡶྵࡵࡓࢧࢫࢸ࢖ࢼࣅࣜࢸ࢕㸦ᣢ⥆ྍ⬟ᛶ㸧ࢆᐇ⌧ࡍࡿࡇ࡜ࡀồࡵࡽࢀࡘࡘ࠶ࡿ㸬ࢧࢫࢸ࢖ࢼࣅࣜࢸ࢕ࡣ㸪㈨※ᾘ㈝ࡸᆅ⌫⎔ቃ࡞࡝ࡢ⎔ቃⓗഃ㠃࠿ࡽࡢᴫᛕࡢࡳ࡞ࡽࡎ㸪♫఍ⓗഃ㠃ࡸ⤒῭ⓗഃ㠃ࡶྵࡵࡓࡼࡾᖜࡢᗈ࠸ᴫᛕ࡛࠶ࡿ㸬⎔ቃⓗഃ㠃࡟ὀ┠ࡋࡓ࡜ࡋ࡚ࡶ㸪⏘ᴗ㠉࿨௨๓࡟ẚ࡭࡚ᆅ⌫ࡢᖹᆒẼࡃ♧၀ࡉࢀ࡚࠸ࡿ

ୖ᪼ࢆᮃࡲࡋࡃࡣ 1.5°C ௨ୗ࡟ᢚ࠼ࡿᚲせᛶࡀ࠶ࡿࡇ࡜ࡀᙉ1)㸬ࡇࢀ࡟ࡘ࠸࡚ࡣᮍࡔ࢖ࣥࣇࣛࡢศ㔝࡛ࡣ㝧ⓗ࡟⪃៖ࡉࢀࡿࡲ࡛࡟ࡣ⮳ࡗ࡚࠸࡞࠸ࡀ㸪㑊ࡅ࡚㏻ࡿࡇ࡜ࡣ࡛ࡁ࡞࠸㸬ᅜ㝿ࢥࣥࢡ࣮ࣜࢺᵓ㐀㐃┕㸦fib㸧࡛ࡣ㸪࢖ࣥࣇࣛࡢᵓ㐀ᕤᏛⓗഃ㠃࠿ࡽࡢࢧࢫࢸ࢖ࢼࣅࣜࢸ࢕ࡢᐃ⩏࡜ࡋ࡚㸪ࠕ⌧ୡ௦࡜ᑗ᮶ୡ௦ࡀ㸪ጇ༠ࡏࡎ㸪⮬↛㸪♫఍㸪⤒῭㸪೺ᗣ࡟㛵ࡍࡿࢽ࣮ࢬࢆ‶ࡓࡍࡇ࡜࡟㈨ࡍࡿᵓ㐀≀࠶ࡿ࠸ࡣᵓ㐀せ⣲ࡢ⬟ຊ࡛ࠖ࠶ࡿ࡜ࡋ࡚࠸ࡿ㸬ࡇࡢࡼ࠺࡟㸪࢖ࣥࣇࣛࡢศ㔝࡟࠾࠸࡚ࡶࡇࢀࡲ࡛࡜ࡣ␗࡞ࡿᑐᛂࡀ࡛ࡁࡿࡼ࠺࡟᪂ࡓ࡞⪃࠼ࢆྲྀࡾධࢀ࡚࠸ࡃࡇ࡜ࡀᛴົ࡜࡞ࡗ࡚࠸ࡿ㸬࢖ࣥࣇࣛࡣ㸪ࡑࢀࡒࢀ࡟ᅛ᭷ࡢ┠ⓗࢆࡶࡗ࡚ᩚഛࡉࢀࡿ㸬┠ⓗࢆ☜ᐇ࡟㐩ᡂࡍࡿࡓࡵ࡟㸪࢖ࣥࣇࣛࡀಖ᭷ࡍ࡭ࡁᶵ⬟ࡀタᐃࡉࢀࡿ㸬ࡑࡋ࡚㸪ࡇࡢᶵ⬟ࢆᚲせ࡞ᮇ㛫㸦タィ౪⏝ᮇ㛫㸧☜ಖࡍࡿࡓࡵ࡟㸪࢖ࣥࣇࣛ࠶ࡿ࠸ࡣࡑࢀࢆᵓᡂࡍࡿᵓ㐀≀࡟せồࡉࢀࡿᛶ⬟ࡀタᐃࡉࢀࡿ㸬せồᛶ⬟ࡀタᐃࡉࢀࢀࡤ㸪タィẁ㝵࡛ࡑࡢᛶ⬟ࡀಖ᭷ࡉࢀ࡚࠸ࡿ࠿࡝࠺࠿ࡢ↷ᰝࡀ⾜ࢃࢀࡿ㸬ࡇࡢࡼ࠺࡟㸪タィ࡟ࡣᵓ㐀ィ⏬࡟ಀࡿ஦㡯࡜↷ᰝ࡟ಀࡿ஦㡯ࡀ࠶ࡾ㸪୧⪅࡟ࡼࡾᛶ⬟ࢆಖᣢࡋ⥆ࡅࡿࡼ࠺࡟タィࡀ⾜ࢃࢀࡿ㸬ࡑࡋ࡚㸪タィ⤖ᯝ࡟ᇶ࡙࠸࡚᪋ᕤࡉࢀ㸪౑⏝ࡀ㛤ጞࡉࢀࡓᚋࡣ⥔ᣢ⟶⌮ࢆ⾜࠸㸪࠸ࡎࢀᗫṆࡢẁ㝵࡟⮳ࡿ㸬ࡇࡢࡼ࠺࡟㸪࢖ࣥࣇࣛࡢィ⏬࠿ࡽᗫᲠ࡟⮳ࡿࣛ࢖ࣇࢧ࢖ࢡࣝ࡟࠾࠸࡚㸪ࡑࡢᶵ⬟࠶ࡿ࠸ࡣᛶ⬟ࢆ☜ಖࡍࡿࡓࡵ࡟⾜࠺࡭ࡁసᴗࡢ᭱㐺ゎࢆᖖ࡟ồࡵ࡚࠸ࡃࡇ࡜࡟࡞ࡿ㸬ࡇࢀࡀࣛ࢖ࣇࢧ࢖ࢡ࣐ࣝࢿࢪ࣓ࣥࢺ㸦/&0㸧ࡢᇶᮏ࡛࠶ࡿ㸬ࡘࡲࡾ㸪LCM ࡣ㸪ࡇࢀࡽࡢ඲సᴗẁ㝵ࢆ㏻ࡋ࡚㸪࢖ࣥࣇࣛࡢ┠ⓗ࡟ᛂࡌࡓᶵ⬟࠾ࡼࡧᛶ⬟ࢆせồࡍࡿࣞ࣋ࣝ࡟ಖ
ドࡍࡿࡓࡵࡢ඲యᡓ␎࡛࠶ࡿ࡜ࡶゝ࠼ࡿ㸬ᮏ✏࡛ࡣ㸪ᣢ⥆ྍ⬟࡛ከᵝᛶ࡜ໟᦤᛶࡢ࠶ࡿ♫఍ᐇ⌧ࡢࡓࡵࡢ࢖ࣥࣇ࣐ࣛࢿࢪ࣓ࣥࢺࢩࢫࢸ࣒࡜ࡋ࡚ࡢ LCM ࡢ⪃࠼᪉ࢆ⤂௓ࡍࡿ 2), 3)㸬

2㸬࢖ࣥࣇࣛࡢࣛ࢖ࣇࢧ࢖ࢡ࣐ࣝࢿࢪ࣓ࣥࢺ
2-1 ࣛ࢖ࣇࢧ࢖ࢡ࣐ࣝࢿࢪ࣓ࣥࢺࡢᚲせᛶ࢖ࣥࣇࣛࡣ㸪ᅗ 1 ࡟♧ࡍࡼ࠺࡟㸪ㄪ㐩㸦ィ⏬㸪タィ㸪᪋ᕤࡢẁ㝵㸧࠿ࡽ౑⏝㸦౑⏝ẁ㝵㸧ࢆ⤒࡚᭱⤊ⓗ࡟ࡣᗫṆ㸦ᗫṆẁ㝵㸧࡟⮳ࡿ㸬ࡇࢀࡀ࢖ࣥࣇࣛࡢࣛ࢖ࣇࢧ࢖ࢡ࡛ࣝ࠶ࡿ㸬ࡑࡋ࡚㸪ྛẁ㝵࡟࠾࠸࡚㔜せ࡞᝟ሗࢆูࡢẁ㝵࡟ຠᯝⓗ࡟ఏ㐩ࡍࡿࡇ࡜ࡀᚲせ࡛࠶ࡿ࡜ࡶゝ࠼ࡿ㸬ᐇ㝿࡟ࡣ㸪༢୍ࡢ⤌⧊࠶ࡿ࠸ࡣᢏ⾡⪅ࡀ୍㈏ࡋ࡚඲ẁ㝵࡟㛵ࢃࡿࡇ࡜ࡣᑡ࡞࠸㸬ࡑࡢࡓࡵ㸪࡝ࡢࡼ࠺࡟ᙜヱ࢖ࣥࣇࣛ࡟㛵ࢃࡿ᝟ሗࢆ」ᩘࡢ⤌⧊ࡸᢏ⾡⪅࡛ඹ᭷ࡋ㸪࠿ࡘ୍㈏ࡋࡓᛮ᝿ࡢୗ࡛࢖ࣥ
ࣇࣛࡢࣛ࢖ࣇࢧ࢖ࢡࣝࢆ࣐ࢿࢪ࣓ࣥࢺࡋ࡚࠸ࡃࡢ࠿ࡀ㔜せ࡜࡞ࡿ㸬ࡑࡢࡓࡵࡢᇶᮏᴫᛕ࡜᪉ἲ
࡟㛵ࡍࡿ㐺ษ࡞ࢩࢫࢸ࣒ࡀ LCM ࡜࠸࠺ࡇ࡜࡟࡞ࡿ㸬㐺ษ࡞ LCM ࡢḞዴࢆ♧ࡍ୍ࡘࡢ஦౛࡟࢖ࣥࣇࣛࡢ᪩ᮇຎ໬ࡀ࠶ࡿ㸬ຎ໬ࡀ⏕ࡌࡿࡢࡣࡸࡴࢆᚓ࡞࠸ࡇ࡜ࡶ࠶ࡿࡀ㸪タィࡢ㝿࡟㐺ษ࡞⪏ஂᛶ↷ᰝࢆ⾜ࡗࡓ࡟ࡶᣊࢃࡽࡎ㸪᪩ࠎ࡟ᥐ⨨ࡀᚲせ࡞ࣞ࣋ࣝ࡟ࡲ࡛ຎ໬ࡀ㐍ࡴ஦౛ࡀᩓぢࡉࢀࡿ㸬౑⏝ẁ㝵࡟࠾࠸࡚ຎ໬ࡢ඙ೃࢆぢࡘࡅࡓሙྜ࡟ࡑࡢཎᅉࢆ᥎26ࡍࡿࡇ࡜࡟࡞ࡿࡀ㸪タィẁ㝵࡛࡝ࡢࡼ࠺࡞ࣔࢹࣝࢆ⏝࠸࡚㸪ࣃ࣓࣮ࣛࢱࢆධຊࡋ࡚↷ᰝࡀ⾜ࢃࢀࡓࡢ࠿㸪๓ᥦ᮲௳ࡣ࡝࠺ࡔࡗࡓࡢ࠿࡞࡝࡟ࡘ࠸࡚ࡢ᝟ሗࡀ⥔ᣢ⟶⌮⪅࡟ఏ㐩ࡉࢀ࡚࠸࡞࠸ࡓࡵ㸪タィ࠶ࡿ࠸ࡣ᪋ᕤ࡟㉳ᅉࡍࡿၥ㢟ࡀ࠶ࡗࡓࡢ࠿㸪ࡇࢀࡲ࡛ࡢ⥔ᣢ⟶⌮ࡀ༑ศ࡛࡞࠿ࡗࡓࡢ࠿ࡶࡼࡃࢃ࠿ࡽ࡞࠸㸬࢖ࣥࣇࣛࡢㄪ㐩ࡸ౑⏝࡟࠾࠸࡚ࡣᖖ࡟୙☜ᐇ࡞せ⣲ࡀᏑᅾࡍࡿࡓࡵ㸪ࡑࢀࡒࢀࡢసᴗ࡛᝿ᐃࡋࡓࡇࢀࡽせ⣲ࡢጇᙜᛶࢆホ౯ࡋ㸪௒ᚋࡢసᴗ࡟ࣇ࢕࣮
ࢻࣂࢵࢡࡍࡿᚲせࡀ࠶ࡿ㸬ࡲࡓ㸪౑⏝ẁ㝵࡛࢖ࣥࣇࣛࡢせồᛶ⬟ࡀኚ᭦ࡉࢀࡿሙྜࡸ⏝㏵ኚ᭦
ࡉࢀࡿሙྜࡀ࠶ࡿࡀ㸪ࡑࡢࡼ࠺࡞ሙྜ࡟ࡶඖࡢタィ࡟㛵ࡍࡿᇶᮏⓗ࡞᝟ሗࡀ୙ྍḞ࡟࡞ࡿࡀ㸪ࡑࢀ࡟ࡓ࡝ࡾ╔ࡃࡢࡣᐜ࡛᫆ࡣ࡞࠸㸬ࡘࡲࡾ㸪࢖ࣥࣇࣛࡣ㸪ィ⏬࠿ࡽタィ㸪᪋ᕤ㸪౑⏝ࢆ㏻ࡋ࡚ᗫṆ࡟⮳ࡿࣛ࢖ࣇࢧ࢖ࢡࣝࢆ㏻ࡋ࡚㸪ࡇࢀࢆ⟶⌮ࡍࡿໟᣓⓗ࡞ᡓ␎ࡢୗ࡟࣐ࢿࢪ࣓ࣥࢺࡉࢀ
ࡿ࡭ࡁࡶࡢ࡛࠶ࡾ㸪/&0 ࡣࡇࡢ┠ⓗࡢࡓࡵࡢ᭷⏝࡞ࢩࢫࢸ࣒࡛࠶ࡿ࡜ゝ࠼ࡿ㸬ຍ࠼࡚㸪/&0ࡣィ⏬࣭タィ᫬࡟タᐃࡉࢀࡓ࢖ࣥࣇࣛࡢᶵ⬟ࡸせồᛶ⬟㸪౑⏝୰࡟ኚ᭦ࡉࢀࡓせồᛶ⬟ࢆ☜ಖࡍࡿࡓࡵ࡟⾜ࢃࢀࡿᥐ⨨ࡢ᭱㐺໬࡟ࡶᐤ୚ࡍࡿࡇ࡜࡜࡞ࡿ㸬䐟 ඲యᵓ᝿᫬㛫䛾ὶ䜜ㄪ㐩

䐠 ィ⏬
䐡 タィ
䐢 ᪋ᕤ䐣 ⟶⌮䞉㐠⏝

౑⏝

䐤 ⥔ᣢ
䐥 ᥐ⨨䠄⿵ಟ䞉⿵ᙉ➼䠅ᗫṆ䐦 ᧔ཤ䞉᭦᪂

ᅗ 1 ࢖ࣥࣇࣛࡢࣛ࢖ࣇࢧ࢖ࢡࣝ

2-2 ࣛ࢖ࣇࢧ࢖ࢡ࣐ࣝࢿࢪ࣓ࣥࢺࡢᯟ⤌ࡳ࡜ὶࢀ
LCM ࡢᯟ⤌ࡳࢆᅗ 2 ࡟♧ࡍ㸬LCM ⮬యࡣ㸪๓㏙ࡢࡼ࠺࡟㸪ィ⏬㸪タィ࠿ࡽᗫṆࢆ⤒࡚ࡲࡓィ⏬࡟ᡠࡿࢧ࢖ࢡ࡛ࣝ࠶ࡿ㸬ࡓࡔࡋ㸪ᙜヱ࢖ࣥࣇࣛ⮬య࡟ᡠࡍࡇ࡜ࡣ࡛ࡁ࡞࠸ࡀ㸪㢮ఝ࠶ࡿ࠸ࡣ㏆᥋ࡍࡿ௚ࡢ࢖ࣥࣇࣛ࡟ᙜヱ࢖ࣥࣇ࡛ࣛᚓࡓ▱ぢࢆࣇ࢕࣮ࢻࣂࢵࢡࡋ࡚࠸ࡃࡇ࡜࡛Ọ㐲࡟ࢧ࢖ࢡࣝࡀᅇࡾ⥆ࡅࡿ㸬
ᅗ 3 ࡣ LCM ࡢᶆ‽ⓗ࡞ࣇ࣮ࣟࢆ♧ࡍࡶࡢ࡛࠶ࡿ㸬ࡇࢀ࠿ࡽ᪂タࡋࡼ࠺࡜ࡍࡿ࢖ࣥࣇ࡛ࣛࡣ㸪ࢩࢼࣜ࢜ࡣ࢖ࣥࣇࣛࡢࣛ࢖ࣇࢧ࢖ࢡࣝࢆไᚚࡍࡿࡶࡢ࡛࠶ࡿࡓࡵ㸪࡛ࡁࡿ㝈ࡾୖὶഃ࡛ᵓ⠏ࡉࢀ࡞ࡅࢀࡤ࡞ࡽ࡞࠸ࡓࡵ࡛࠶ࡿ㸬ࢩࢼࣜ࢜࡟ࡣ㸪኱ࡁ࡞ᨵᐃࢆ᪋ࡉ࡞ࡃ࡚ࡶ࡛ࡁࡿ㝈ࡾ࢖ࣥࣇࣛࡢᶵ⬟࡜ᛶ⬟ࢆ⥔ᣢࡍࡿࡼ࠺࡟ᵓ⠏ࡉࢀࡿᚲせࡀ࠶ࡿࡀ㸪ィ⏬ࡸタィࡢẁ㝵࡛ࡣ㝈⏺ࡀ࠶ࡿࡢࡶ஦ᐇ࡛࠶ࡿ㸬࠶ࡽ࠿ࡌࡵࡑࡢ㝈⏺ࡀண᝿࡛ࡁࡿሙྜ࡟ࡣ㸪᫝ṇᥐ⨨ࢆィ⏬ࡋ㸪ࢩࢼࣜ࢜࡟ྵࡵࡿࡇ࡜ࡀ࡛ࡁࡿ㸬ࢩࢼࣜ࢜ࡣ㸪ḟࡢẁ㝵࡟ᘬࡁ⥅ࡀࢀࡿࡇ࡜࡛㸪࢖ࣥࣇࣛࡢࣛ࢖ࣇࢧ࢖ࢡࣝࡢྛẁ㝵ࢆ᭷ᶵⓗ࡟ࡘ࡞ࡄ㸬タィẁ㝵࡛ࡣ㸪࢖ࣥࣇࣛࡢᛶ⬟せ௳ࡀタᐃࡉࢀ㸪ィ⏬ẁ㝵࡛⟇ᐃࡋࡓࢩࢼࣜ࢜ࢆ‶ࡓࡍࡼ࠺࡟㸪ᵓ㐀ᙧᘧ㸪ᮦᩱ㸪ᙧ≧࣭ᑍἲ➼ࡀᣦᐃࡉࢀ㸪ᛶ⬟ࡀ↷ᰝࡉࢀࡿ㸬タィ⤖ᯝࡀࢩࢼࣜ࢜ࢆ‶ࡓࡉ࡞࠸ሙྜ㸪ࢩࢼࣜ࢜ࡣタィࡢ⪃࠼᪉࡜୍⮴ࡍࡿࡼ࠺࡟ಟṇࡉࢀࡿ࠿㸪タィసᴗࡀ෌ᗘᐇ⾜ࡉࢀࡿ㸬27ィ⏬
タィ䝬䝛䝆䝯䞁䝖䛾䝅䝘䝸䜸௚䛾䜲䞁䝣䝷䝃䝇䝔䜲䝘䝡䝸䝔䜱ᣦᶆ᪋ᕤ㻸㼕㼒㼑㻌㼏㼥㼏㼘㼑㻌>D㼐㼑㼘㼕㼢㼑㼞㼥ᗫṆ㻼㻰㻯㻭౑⏝ホ౯ಟṇ⥔ᣢᥐ⨨䜲䞁䝣䝷䛻㛵䛩䜛▱㆑䞉⤒㦂䞉ᢏ⾡ἲᚊ䞉ᇶ‽䞉䝬䝙䝳䜰䝹➼
ᅗ 2 ࣛ࢖ࣇࢧ࢖ࢡ࣐ࣝࢿࢪ࣓ࣥࢺࡢᯟ⤌ࡳ᪤ タ᪂ タィ ⏬
ィ⏬ẁ㝵㻸㻯㻹䛾㛤ጞᇶᮏ䝅䝘䝸䜸䛾⟇ᐃタ ィタィẁ㝵タィ䛿䝅䝘䝸䜸䜢‶㊊䠛㻺㼛䝕䞊䝍㼅㼑㼟᪋ᕤẁ㝵᪋ ᕤᇶᮏ䝅䝘䝸䜸䛾⟇ᐃⅬ᳨デ᩿䞉ホ౯౑⏝⤊஢䠛㻺㼛ᑐ⟇ᚲせ䠛㼅㼑㼟౑⏝ẁ㝵㼅㼑㼟㻺㼛ᑐ⟇䠄䝝䞊䝗䠈䝋䝣䝖䠅㻺㼛䝅䝘䝸䜸䛾ಟṇ䠛ᗫṆẁ㝵㼅㼑㼟䝅䝘䝸䜸䛾ಟṇᗫṆᅗ  ࣛ࢖ࣇࢧ࢖ࢡ࣐ࣝࢿࢪ࣓ࣥࢺࡢᶆ‽ⓗ࡞ࣇ࣮ࣟ᪋ᕤẁ㝵࡛ࡣ㸪タィẁ㝵࡛タᐃࡉࢀࡓ࢖ࣥࣇࣛࡢᚲせ᮲௳ࢆ᏶඲࡟☜ಖࡍࡿࡼ࠺࡟ᚲせ࡞సᴗࡀ⾜ࢃࢀࡿ㸬᪋ᕤᚋ࡟ࡣ㸪࢖ࣥࣇࣛࡢ≧ែࢆ☜ㄆࡍࡿࡓࡵ࡟ึᮇデ᩿ࡀᐇ⾜ࡉࢀ㸪ࡑࡢ⤖ᯝ㸪ࢩࢼࣜ࢜࡝࠾ࡾ࡟౑⏝࡛ࡁ࡞࠸ࡇ࡜ࡀศ࠿ࢀࡤ㸪ࢩࢼࣜ࢜ࢆᨵᐃࡍࡿ࠿㸪ࢩࢼࣜ࢜࡟ྜ࠺ࡼ࠺࡟ࡇࡢẁ㝵࡛࢖ࣥࣇࣛ࡟ᚲせ࡞ᥐ⨨㸦࠸ࢃࡺࡿ⿵ಟ㸧ࢆ⾜࠺ᚲせࡀ࠶ࡿ㸬ࡑࡢᚋࡣ㸪࢖ࣥࣇࣛࡢ≧ែ࡜ᛶ⬟ࡀᐃᮇⅬ᳨➼࡟ࡼࡗ࡚ホ౯ࡉࢀ㸪ᖖ࡟ࢩࢼࣜ࢜࡜ᐇែ࡜ࡢᩚྜᛶࡀ☜ㄆࡉࢀࡿ㸬࢖ࣥࣇࣛࡢ≧ែࡀࢩࢼࣜ࢜࡝࠾ࡾ࡛࡞࠸ሙྜ࡟ࡣ㸪ྠᵝ࡟ᥐ⨨ࢆ⾜࠺࠿㸪ࢩࢼࣜ࢜ࢆ⌧≧࡟ྜ࠺ࡼ࠺࡟ᨵᐃࡍࡿᚲせࡀ࠶ࡿ㸬ィ⏬ẁ㝵࡛⟇ᐃࡉࢀࡓࢩࢼࣜ࢜ࡣ㸪✀ࠎࡢ௬ᐃ࡟✚ࡳ㔜ࡡࡽࢀࡓ⹫ᵓࡢ⏘≀࡛࠶ࡿࡓࡵ㸪ࡑࡢጇᙜᛶࢆ☜ㄆࡋ࡚࠸ࡃࡇ࡜ࡀ౑⏝ẁ㝵࡛ồࡵࡽࢀࡿ㸬ࡇࡢ᝟ሗࡣᙜヱ࢖ࣥࣇࣛࡢࡳ࡞ࡽࡎ㸪㢮ఝࡢ࢖ࣥࣇࣛࡢタィ➼࡟࠾࠸࡚ά⏝ࡉࢀࡿ㸬᭱⤊ⓗ࡟㸪ᥐ⨨ࢆࡋ࡚ࡲ࡛౑⏝ࢆ⥆ࡅࡿࡢࡣၥ㢟࡛࠶ࡿ࡜ุ᩿ࡉࢀࡓሙྜ࡟ࡣᗫṆẁ㝵࡟⛣⾜ࡍࡿ㸬28ᗫṆẁ㝵࡛ࡣ㸪࢖ࣥࣇࣛࡢゎయࡲࡓࡣ࢖ࣥࣇࣛ඲యࡲࡓࡣ㒊ᮦࡢ࣮ࣜࣘࢫ㸪ᮦᩱࡢࣜࢧ࢖ࢡࣝࡢྍ⬟ᛶࢆ᳨ウࡋ㸪ᗫᲠ≀ࡢ㔞ࢆῶࡽࡍ࡞࡝ࡢ⎔ቃ㈇Ⲵపῶࢆ᳨ウࡍࡿ㸬ᮏ᮶࡞ࡽࡤ࢖ࣥࣇࣛࡢィ⏬࣭タィẁ㝵࡟࠾࠸࡚ᗫᲠࡢࢩࢼࣜ࢜ࢆ᳨ウࡋ࡚࠾ࡃ࡭ࡁ࡛࠶ࡿࡀ㸪ࡇࢀ࡟ࡘ࠸࡚ࡣࡑࡢࡓࡵࡢ௒ᚋࡢᢏ⾡㛤Ⓨࡀᚅࡓࢀࡿ࡜ࡇࢁ࡛࠶ࡿ㸬᪤Ꮡ࢖ࣥࣇ࡛ࣛ࠶ࡗ࡚ LCM ࡟ᇶ࡙ࡃ⥔ᣢ⟶⌮ࢆ⾜࠾࠺࡜ࡍࡿሙྜ࡟ࡣ㸪ࡲࡎⅬ᳨デ᩿ࢆᐇ⾜ࡋ㸪ࡑࡢ⤖ᯝࢆཷࡅ࡚ࢩࢼࣜ࢜ࢆᵓ⠏ࡍࡿ㸬᪂タ࢖ࣥࣇࣛ࡜␗࡞ࡾ㸪ィ⏬㸪タィ࠶ࡿ࠸ࡣ᪋ᕤ࡟ࡘ࠸࡚ࡢ᝟ሗࡀ༑ศ࡛࡞࠸ࡇ࡜ࡶ࠶ࡿࡢ࡛㸪ධᡭ࡛ࡁࡿ᝟ሗࡢ⠊ᅖ࡛ࢩࢼࣜ࢜ࢆࡲࡎ⟇ᐃࡋ㸪ࡑࢀ௨㝆ࡣ᪂タ࢖ࣥࣇࣛ࡜ྠᵝ࡟㐍ࡵࡿ㸬
LCM ࡣ㸪ᇶᮏⓗ࡞⪃࠼ࢆ♧ࡍࢩࢼࣜ࢜ࢆᵓ⠏ࡋ࡚㸪ࡑࢀ࡟ᇶ࡙࠸࡚ᐇ᪋ࡍࡿ㸬ࢩࢼࣜ࢜ࡣ㸪ᙜヱ࢖ࣥࣇࣛࢆ࡝࠺ࡋࡓ࠸ࡢ࠿ࢆࡲ࡜ࡵࡓࡶࡢ࡛࠶ࡿ㸬ࢩࢼࣜ࢜ࢆᵓ⠏ࡍࡿ㝿࡟ࡣ㸪」ᩘࡢ௦
᭰᱌࠿ࡽ㑅ᐃࡍࡿࡓࡵࡢホ౯ᣦᶆࡀᚲせ࡜࡞ࡿ㸬⌧ᅾ᳨ウࡋ࡚࠸ࡿ LCM ࡛ࡣ㸪♫఍ⓗ㸪⎔ቃⓗ㸪⤒῭ⓗ࡞ഃ㠃࠿ࡽ⪃࠼ࡽࢀࡿࢧࢫࢸ࢖ࢼࣅࣜࢸ࢕ࡢᣦᶆࡢࣂࣛࣥࢫࢆ⪃៖ࡍࡿ㸬ࡇࢀ࡟ࡘ
࠸࡚ࡣᚋ㏙ࡍࡿ㸬ࢩࢼࣜ࢜ࡣࡑࡢ᫬Ⅼ࡛ࡢ✀ࠎࡢ௬ᐃ࡟ᇶ࡙ࡃࡶࡢ࡛࠶ࡿࡓࡵ㸪ᚋ㏙ࡍࡿࡼ࠺࡟㸪ᚲせ࡟ᛂࡌ࡚㐺ษ࡟ᨵᐃࡉࢀࡿᚲせࡀ࠶ࡿ㸬
2-3 ࣛ࢖ࣇࢧ࢖ࢡࣛ࢖ࣇࢧ࢖ࢡ࣐ࣝࢿࢪ࣓ࣥࢺ࡟࠾ࡅࡿ 3'&$
ᅗ 4 ࡣ㸪LCM ࡟࠾ࡅࡿ PDCA㸦Plan-Do-Check-Act㸧ࡢᴫᛕ࡟ᇶ࡙ࡃࣇ࢕࣮ࢻࣂࢵࢡ࠾ࡼࡧ
ࢩࢼࣜ࢜ᨵᐃࡢࢩࢫࢸ࣒ࢆ♧ࡋ࡚࠸ࡿ㸬ྠᅗ࡛ࡣ㸪࢖ࣥࣇࣛࡢ⟶⌮⪅࠶ࡿ࠸ࡣᢏ⾡⪅ࡢࣞ࣋ࣝ࡟ᛂࡌ࡚␗࡞ࡿ PDCA ࢧ࢖ࢡࣝࡀ㑅ᢥ࡛ࡁࡿࡇ࡜ࡶ♧ࡋ࡚࠸ࡿ㸬࢖ࣥࣇࣛ⟶⌮⪅ࡢࢹ࣮ࢱࡸ▱㆑ࡢ⵳✚ࡢ⛬ᗘ㸪ᢏ⾡ⓗ࡞⇍ᗘ࡟ࡼࡗ࡚㸪⡆᫆ࣞ࣋ࣝ㸪ヲ⣽ࣞ࣋ࣝ㸪㧗ᗘࣞ࣋ࣝ࡟࣐ࢿࢪ࣓ࣥࢺࡢࣞ࣋ࣝࡀ኱ู࡛ࡁࡿ 4)㸬ࡑࡋ࡚㸪ࡇࡢࣞ࣋ࣝ࡟ᛂࡌ࡚㸪⡆࡛᫆ࣞ࣋ࣝࡣ౑⏝ẁ㝵ࡢ⥔ᣢ⟶⌮ࡢసᴗ࡟࠾࠸࡚ࡢࡳ࡟ࢹ࣮ࢱࢆά⏝ࡋ࡚ PDCA ࢧ࢖ࢡࣝࢆᅇࡍ㸪ヲ⣽࡛ࣞ࣋ࣝࡣ౑⏝ẁ㝵ࡢ᝟ሗࢆඖ࡟ィ⏬㸪タィ㸪࠶ࡿ࠸ࡣ᪋ᕤ࡟ࢹ࣮ࢱࢆࣇ࢕࣮ࢻࣂࢵࢡࡉࡏࡿ㸪ࡉࡽ࡟ࡣ㸪㧗ᗘ࡛ࣞ࣋ࣝࡣࡼࡾከࡃࡢ࢖ࣥࣇࣛࢆᑐ㇟࡜ࡋࡓᡓ␎ⓗ࡞⟶⌮㐠Ⴀ࡟ࢹ࣮ࢱࢆά⏝ࡍࡿ㸪࡜࠸ࡗࡓࡼ࠺࡟ PDCA ࡢᅇࡋ᪉ࢆ㑅ᢥࡍࡿ㸬ࡑࡋ࡚ࡇࡢసᴗࢆ⧞ࡾ㏉ࡍࡇ࡜࡛㸪ࢹ࣮ࢱࡸ▱ぢࡢ⵳✚࡟ࡼࡿࣞ࣋ࣝ࢔ࢵࣉࡢ⛬ᗘ࡟ᛂࡌ࡚㸪࣐ࢿࢪ࣓ࣥࢺࡢᑐ㇟ࡸ᪉ἲࡀࢫࢸࢵࣉ࢔ࢵࣉࡉࢀ࡚࠸ࡁ㸪ࡼࡾ⌧ᐇⓗ࠿ࡘ᭱㐺࡞ࢩࢼࣜ࢜ࢆᵓ⠏ࡍࡿࡇ࡜࡟ࡘ࡞ࡀࡿ㸬
3/$1

ঐॿ४ওথॺ '2
3/$1ইॕ‫ॻش‬ংॵॡਈిଵ৶੦૆भਝ৒

೐੅ଵ৶ '2ਡਫ਼൧૵੶ஈೈ઼ইॕ‫ॻش‬ংॵॡੑ઺ੲਾ஫୸धણ৷ইॕ‫ॻش‬ংॵॡ‫ق‬শํ୵৲ृ೐੅ଵ৶ਙभ੝ఒಉ‫ك‬$&7,21$&7,21

੝ఒ ೐੅ଵ৶१ॖॡঝ
ਝੑ্১‫؜‬઱ੵ্১‫ك‬&+(&.

ਝੑইॕ‫ॻش‬ংॵॡ‫ق‬઱ੵષସभ੝ఒಉ‫ك‬঑५ঐॵॳಉभਉ౤ীෲੲਾ஫୸धણ৷઱ੵ ૚஺మ৑भੲਾ஫୸धણ৷্১ ৉ୠभৰੲप়ॎचञढ़५ॱঐॖ६ ଡୗ੟nණ|पৌघॊ$0ੑ઺ੲਾ஫୸धણ৷ ੲਾ஫୸धણ৷্১भ੝ఒ ढ़५ॱঐॖ६৲भৄઉख‫؞‬ఊਫ
 $0भ੝ఒ ੦૆థभ੝ၖ&+(&.

 ੲਾ஫୸धણ৷भ঑५ঐॵॳසਪ ৉ୠभৰੲपৌघॊ঑५ঐॵॳසਪ
 $0भઈ৷૾யᅗ  ࣛ࢖ࣇࢧ࢖ࢡ࣐ࣝࢿࢪ࣓ࣥࢺ࡟࠾ࡅࡿ᝟ሗࡢὶࢀ࡜ 3'&$ ࢧ࢖ࢡࣝ㸦ᩥ⊩ 5 ࢆඖ࡟ᨵ⦅㸧

29

3㸬LCM ࡜ࢧࢫࢸ࢖ࢼࣅࣜࢸ࢕3-1ࢧࢫࢸ࢖ࢼࣅࣜࢸ࢕ࡢホ౯ᣦᶆ
LCM ࡟ࡼࡗ࡚࢖ࣥࣇࣛࡢ♫఍࡬ࡢ㐺ྜᛶࢆ☜ᐇ࡟ࡍࡿࡇ࡜ࡀ࡛ࡁࡿ࡜⪃࠼࡚࠸ࡿ㸬♫఍࡬ࡢ㐺ྜᛶ࡜ࡣ㸪฼⏝ࡍࡿேࠎࡀ♫఍ࡢᣢ⥆ྍ⬟ᛶ࡜࠸࠺ほⅬ࡛ཷࡅධࢀࡿࡇ࡜ࡀ࡛ࡁࡿ≧ែ࡛࠶ࡿࡇ࡜ࢆព࿡ࡋ࡚࠸ࡿ㸬࢖ࣥࣇࣛࡢせồᛶ⬟ࢆᗈࡃࠕ♫఍࡬ࡢ㐺ྜᛶࠖ࡜࡜ࡽ࠼ࡿࡇ࡜࡟ࡼࡗ࡚㸪ࡇࢀࡲ࡛࡜ࡣ␗࡞ࡿᛶ⬟↷ᰝࡢయ⣔ࡀᙧᡂࡉࢀࡿྍ⬟ᛶࡀ࠶ࡿ㸬࢖ࣥࣇࣛࡢⴭࡋ࠸ຎ໬࠶ࡿ࠸ࡣ⮬↛స⏝ࡢᴟ➃⌧㇟➼࡟ࡼࡗ࡚࢖ࣥࣇࣛࡀ౑⏝ไ㝈ࢆཷࡅࡓࡾ㸪౑⏝೵Ṇ࠶ࡿ࠸ࡣᔂቯ࡟⮳ࡗࡓࡾࡍࢀࡤ㸪࣮ࣘࢨࡸ♫఍࡟୚࠼ࡿᙳ㡪ࡣ⏒኱࡛࠶ࡿ㸬ࡇࡢࡇ࡜ࡣ♫఍ࡢࢧࢫࢸ࢖ࢼࣅࣜࢸ࢕ࡢ႙ኻ࡟┤⤖ࡍࡿ㸬ࡑࢀ࡟ࡼࡗ࡚㸪ே࿨ࡀᦆ࡞ࢃࢀ㸪㞠⏝࠾ࡼࡧ⏕⏘ᣐⅬࡣ୍᫬ⓗ࡟฼⏝೵Ṇ࡟࡞ࡿ࡞࡝㸪⤒῭ⓗ࡞ほⅬ࠿ࡽࡶⴭࡋ࠸ᦆኻࢆ⏕ࡌࡿ㸬࢖ࣥࣇࣛࡀ㢧ⴭ࡞ຎ໬ࡸᔂቯ࡟ࡼࡗ࡚ࡴࡸࡳ࡟᭦᪂ࡉࢀࢀࡤ㸪኱㔞ࡢᗫᲠ≀ࡀⓎ⏕ࡋ㸪ࡑࢀࢆฎ⌮ࡍࡿ࡟ࡣ⭾኱࡞࢚ࢿࣝࢠ࣮ࡀᚲせ࡟࡞ࡿ㸬ࡲࡓ㸪෌ᵓ⠏࡟ࡣ㏣ຍࡢ㈨※࡜࢚ࢿࣝࢠ࣮ࡀᚲせ࡟࡞ࡿ㸬ࡑࡢࡓࡵ㸪࢖ࣥࣇࣛࡢᶵ⬟ࢆ☜ᐇ࡟☜ಖࡋ㸪ࡑࡢ┠ⓗࢆࡁࡕࢇ࡜඲࠺ࡉࡏࡿࡇ࡜ࡀ㸪ࢧࢫࢸ࢖ࢼࣅࣜࢸ࢕࡟ࡣ᭱ࡶ㔜せ࡞ࡇ࡜࡜࡞ࡿ㸬
LCM ࡟࠾࠸࡚㸪᭱㐺࠶ࡿ࠸ࡣࡼࡾ᭱㐺࡟㏆࠸ゎࢆồࡵࡿࡓࡵ࡟ఱࡽ࠿ࡢᩘ್ᣦᶆࡀᚲせ࡛࠶ࡾ㸪ࡑࡢࡓࡵ࡟ࢧࢫࢸ࢖ࢼࣅࣜࢸ࢕࡟ᇶ࡙ࡃᣦᶆࡢタᐃ࡜ᩘ್໬㸪ࡑࡋ࡚ホ౯ࡀᚲせ࡜࡞ࡿ㸬ࢧࢫࢸ࢖ࢼࣅࣜࢸ࢕ࢆ⪃࠼ࡿ࡟ࡣ㸪♫఍ⓗഃ㠃㸪⎔ቃⓗഃ㠃㸪⤒῭ⓗഃ㠃ࡢ 3 ࡘࡢഃ㠃ࡀ࠶ࡾ㸪ࡇࢀࡽࡢྛഃ㠃࠿ࡽᩘ್ᣦᶆࢆタᐃࡍࡿࡇ࡜࡜࡞ࡿ㸬
3-2 ♫఍ⓗഃ㠃♫఍ⓗഃ㠃࡟ࡣ㸪Ᏻ඲࣭Ᏻᚰ㸪౑࠸຾ᡭ㸪ேཱྀၥ㢟㸪฼⏝⪅ࡢ㟂せ࡜‶㊊ᗘ㸪ᩥ໬ⓗ౯್➼ࡉࡲࡊࡲ࡞ษࡾཱྀࡀ࠶ࡾ㸪࢖ࣥࣇࣛࡣ㸪ࡇࢀࡽ࡟┤᥋࠶ࡿ࠸ࡣ㛫᥋࡟㛵ಀࡍࡿࡇ࡜ࡀከ࠸㸬♫఍ⓗഃ㠃࠿ࡽࡢᣦᶆ㸦♫఍ⓗᣦᶆ㸧࡜ࡋ࡚ࡣ㸪Ᏻ඲ᛶ㸪౑⏝ᛶ㸪࢔ࢡࢭࢫᛶ㸪㐺ᛂᛶ㸪೺ᗣ࣭ᛌ㐺ᛶ㸪ࢧ࣮ࣅࢫࡢㄪ㐩㸪㞠⏝๰ฟ㸪ேཱྀࡢኚ໬㸪ᩥ໬ⓗ౯್࡞࡝ࢆᐃ㔞໬ࡋ࡚⏝࠸ࡿࡇ࡜ࡀ⪃࠼ࡽࢀࡿ㸬᭱㏆㸪♫఍ᣦᶆࡢ୍ࡘ࡜ࡋ࡚ὀ┠ࡉࢀ࡚࠸ࡿࡢࡣ㸪ࣞࢪ࢚ࣜࣥࢫ㸦UHVLOLHQFH㸪ᙉ㠌ᛶ㸧࡛࠶ࡿ㸬ࣞࢪ࢚ࣜࣥࢫࡣ㸪♫఍࢖ࣥࣇࣛࡀᔂቯࡍࡿࡼ࠺࡞஦㇟ࡀ⏕ࡌࡓᚋ࡟᚟⯆ࡢࡓࡵࡢ᭱㐺໬ࢆᅗࡿࡓࡵࡢᣦᶆ࡜࡞ࡿࡶࡢ࡛࠶ࡿ㸬ࣞࢪ࢚ࣜࣥࢫࡣ㸪♫఍ࡢࢧࢫࢸ࢖ࢼࣅࣜࢸ࢕ࢆ⾲ࡍᣦᶆ࡜ࡋ࡚⏝࠸ࡽࢀࡿࡼ࠺࡟࡞ࡿ࡜⪃࠼ࡽࢀࡿࡀ㸪࢖ࣥࣇࣛࡢどⅬ࠿ࡽࣞࢪ࢚ࣜࣥࢫࢆ࡝ࡢࡼ࠺࡟ホ౯ࡋ㸪ࡑࢀࢆ࡝ࡢࡼ࠺࡟ᐇ⌧ࡍࡿ࠿ࡀ㔜せ࡜࡞ࡿ㸬ᡃࡀᅜ࡛ࡣ㸪 ᖺරᗜ┴༡㒊ᆅ㟈㸪 ᖺᮾ໭ᆅ᪉ኴᖹὒἈᆅ㟈㸪 ᖺ⇃ᮏᆅ㟈࡟ࡼࡾ㸪♫఍ࢩࢫࢸ࣒ࡀ኱ࡁ࡞⿕ᐖࢆཷࡅ㸪♫఍ࡣ⬤ᙅ࡛࠶ࡿࡇ࡜ࢆᨵࡵ࡚ㄆ㆑ࡉࡏࡽࢀࡓ㸬࢖ࣥࣇࣛࡢタィᇶ‽ࡣ㸪タィࡢᑐ㇟࡜ࡍࡿᆅ㟈ື࡟ᑐࡋ࡚࢖ࣥࣇࣛࡀᔂቯࡋ࡞࠸ࡓࡵࡢ᭱ప㝈ࡢせồ஦㡯ࢆ♧ࡋ࡚࠸ࡿ㸬ࡋ࠿ࡋ㸪ᙜ᫬ࡢタィᇶ‽࡛ࡣ㸪タィᑐ㇟ࢆ㉸࠼ࡿࡼ࠺࡞኱つᶍ┤ୗᆺᆅ㟈㸪ᆅ㟈ື࡟ࡼࡿᦆയᚋ࡟᮶くࡋࡓ኱つᶍ࡞ὠἼ㸪」ᩘᅇࡢ୺せື࡟ࡼࡿᦆയ⵳✚ࡢᙳ㡪࡟ࡣ༑ศᑐᛂ࡛ࡁ࡚࠸࡞࠿ࡗࡓ㸬ࡘࡲࡾ㸪๓㏙ࡢࡼ࠺࡟㸪タィ࡛ಖド࡛ࡁࡿᏳ඲ᛶࡣ᏶⎍࡛࡞ࡃ㸪ࡑࡢࡼ࠺࡞஦㇟ࡀ⏕ࡌࡓ࡜ࡁ࡬ࡢഛ࠼ࢆࡋ࡚࠾࠿ࡡࡤ♫఍ࡢࢧࢫࢸ࢖ࢼࣅࣜࢸ࢕ࡣ☜ಖ࡛ࡁ࡞࠸࡜ゝ࠼ࡿ㸬࢖ࣥࣇࣛࡢຊᏛⓗᣲືࡢࢩ࣑࣮ࣗࣞࢩࣙࣥᢏ⾡ࡣ㐍Ṍࡋ㸪ࡑࡢᆅ㟈᫬ᣲືࢆ┦ᙜṇ☜࡟ண࡛ࡁࡿࡼ࠺࡟࡞ࡗ࡚࠸ࡿ㸬ࡋ࠿ࡋ㸪࢖ࣥࣇࣛ࡟⮬↛స⏝࡟୙☜ᐇᛶࡀᏑᅾࡍࡿ≧ἣ࡛ࡣࢩ࣑࣮ࣗࣞࢩࣙࣥࡢ⢭⦓໬ࡔࡅ࡛ࡣ∦ᡭⴠࡕ࡛࠶ࡿࡓࡵ㸪ఱࡽ࠿ࡢవ⿱ᗘࢆ௜୚ࡋ࡚࠾ࡃࡇ࡜
ࡀࢧࢫࢸ࢖ࢼࣅࣜࢸ࢕ࡢほⅬ࠿ࡽᚲせ࡛࠶ࡿ࡜⪃࠼ࡽࢀࡿ㸬ࡑࢀࡣ㸪ᕧ኱ᆅ㟈ࡸ㞟୰㇦㞵ࡢࡼ

30࠺࡞ᴟ➃⌧㇟ࡣ♫఍࡟㔜኱࡞ᙳ㡪ࢆཬࡰࡋ㸪♫఍࢖ࣥࣇࣛࡢᶵ⬟ࡑࡢࡶࡢࢆ႙ኻࡉࡏ㸪ࡑࢀ࠿ࡽࡢ♫఍ࡢ᚟⯆࡟ࡶᙳ㡪ࢆ୚࠼ࡿ࠿ࡽ࡛࠶ࡿ㸬ࡑࡋ࡚㸪ࡇࡢࡼ࠺࡞᚟⯆࡟ಀࡿ㈝⏝ࡣ㸪ኚ≧ࡢ⏕ࡌࡓᵓ㐀≀ࡢ⿵ಟࡸ᭦᪂ࡢ㈝⏝࡟ẚ࡭࡚┦ᙜ኱ࡁ࠸㸬ࡲࡓ㸪タィᇶ‽ࡢ᭱ୖ఩ࡢᴫᛕࢆ♧ࡍ ,62 ࡛ࡣ㸪 ᖺࡢᨵᐃ∧  ࡟࠾࠸࡚㸪ᵓ㐀≀ࡢせồ᮲௳ࡀᣑᙇࡉࢀ㸪♫఍ⓗᶵ⬟ࢆᨭ࠼♫఍ࡢᣢ⥆ⓗⓎᒎࢆ㧗ࡵࡿࡼ࠺タィࡉࢀ㸪⥔ᣢ⟶⌮ࡉࢀ㸪ࡑࡋ࡚ゎయࡉࢀ࡞ࡅࢀࡤ࡞ࡽ࡞࠸ࡇ࡜ࡀཎ๎࡜ࡉࢀࡓ㸬ࡑࡢ୍⎔࡜ࡋ࡚㸪ࣜࢫࢡࡸࣟࣂࢫࢺࢿࢫ㸦UREXVWQHVV㸧ࡢᴫᛕࡀᑟධࡉࢀ㸪౑⏝ᛶ㸪Ᏻ඲ᛶ㸪ࣟࣂࢫࢺࢿࢫࢆ㐺ษ࡞Ỉ‽ࡢࣜࢫࢡ࠶ࡿ࠸ࡣಙ㢗ᛶ࡛ࡶࡗ࡚‶㊊ࡉࢀࡿ࡭ࡁࡶࡢ࡛࠶ࡿ࡜ࡉࢀ࡚࠸ࡿ㸬ࡇࡢࡼ࠺࡟㸪ᚑ᮶タィ࡛⪃࠼ࡽࢀ࡚ࡁࡓ↷ᰝᣦᶆࡢࡳ࡞ࡽࡎ㸪᪂ࡓ࡞஦㇟ࢆ♫఍ᣦᶆ࡜ࡋ࡚ྲྀࡾධࢀࡿ࡭ࡁᚲせࡀ࠶ࡾ㸪᳨ウࡀ㐍ࡵࡽࢀ࡚࠸ࡿ㸬
3-3 ⤒῭ⓗഃ㠃⤒῭ⓗഃ㠃࠿ࡽࡢᣦᶆ㸦⤒῭ᣦᶆ㸧࡜ࡋ࡚ࡣ㸪࢖ࣥࣇࣛࡢᩚഛࡸ⥔ᣢ࣭㐠⏝࡟ᚲせ࡞㈝⏝ࡀࡑࡢ௦⾲࡛࠶ࡿ㸬㈝⏝࡟ࡣ┤᥋ࢥࢫࢺ࠾ࡼࡧ㛫᥋ࢥࢫࢺࡀྵࡲࢀࡿ㸬᭱㏆࡛ࡣึᮇᘓタ㈝࡟ຍ࠼࡚౑⏝ẁ㝵࡛Ⅼ᳨デ᩿ࡸᥐ⨨ࡢ㈝⏝ࡶྵࡵࡓࣛ࢖ࣇࢧ࢖ࢡࣝࢥࢫࢺ㸦/&&㸧࡟ࡼࡿホ౯ࡀ⾜ࢃࢀࡿࡇ࡜ࡶከ࠸ࡀ㸪/&& ⮬యࡣከࡃࡢ௬ᐃࡢ✚ࡳୖࡆ࡛ィ⟬ࡉࢀࡓࡶࡢ࡛࠶ࡾ㸪ࡇࢀࡢࡳ࡛ពᛮỴᐃࢆࡍࡿ࡟ࡣ㝈⏺ࡀ࠶ࡿࡇ࡜ࡶᗈࡃㄆ㆑ࡉࢀ࡚࠸ࡿࡇ࡜࡛࠶ࡿ㸬୍᪉㸪/&& ࡔࡅ࡛࡞ࡃ㸪࢖ࣥࣇࣛࡀ⏕ࡳฟࡍ౽┈࠶ࡿ࠸ࡣ㈨⏘౯್ࢆᣦᶆ࡜ࡋ࡚ホ౯ࡍࡿሙྜࡶ࠶ࡿ㸬୍⯡ⓗ࡞࢖ࣥࣇࣛࡢࣉࣟࢪ࢙ࢡࢺ࡛ࡣ㸪ࡶࡋࢥࢫࢺࡀண⟬ࢆ㉸࠼࡚࠸ࢀࡤ㸪ᵓ㐀ᙧᘧࡸ౑⏝ᮦᩱ࠾ࡼࡧ᪋ᕤࡢᕤኵ➼࡛㈝⏝పῶࢆᅗࡿࡇ࡜࡛ᑐᛂࡉࢀ㸪࢖ࣥࣇࣛࡢᶵ⬟ࡸせồᛶ⬟࡟ࡲ࡛❧ࡕ㏉ࡗ࡚ぢ┤ࡉࢀࡿࡇ࡜ࡣ࡯࡜ࢇ࡝࡞࠸㸬ࡋ࠿ࡋ㸪/&0 ࡟ࡼࡗ࡚㸪ࡇࢀࡽࡶྵࡵࡓᑐᛂࡀ࡛ࡁࡿࡼ࠺࡟࡞ࡿ㸬
3-4 ⎔ቃⓗഃ㠃࢖ࣥࣇࣛࡢᩚഛ㸪౑⏝࡟࠾࠸࡚ࡣ㸪ኳ↛㈨※ࡸ࢚ࢿࣝࢠ࣮ࡢ౑⏝ࡀᚲせ࡛࠶ࡿ࡯࠿㸪Ẽೃኚື㸪⎔ቃởᰁࡸ⏕≀ከᵝᛶ࡬ࡢᝏᙳ㡪࡞࡝ࡀ࠶ࡿ㸬ࡲࡓ㸪᧔ཤࡉࢀࡓ࠶࡜ࡢ⏘ᴗᗫᲠ≀ࡢฎศࡶᚲせ࡜࡞ࡿ㸬ࡇࢀࡽࢆᩘ್໬ࡋࡓࡶࡢࡀ⎔ቃⓗഃ㠃ࡢᣦᶆ㸦⎔ቃᣦᶆ㸧࡜࡞ࡿ㸬ᣦᶆࡢ୰࡟ࡣ㸪㦁㡢࣭᣺ືࡢࡼ࠺࡟ἲⓗつไ್ࡀタᐃࡉࢀ࡚࠸ࡿࡶࡢࡸᬮ໬࢞ࢫ᤼ฟ㔞ࡢࡼ࠺࡟௒ᚋࡢ┠ᶆ್ࡀタࡅࡽࢀ࡚࠸ࡿࡶࡢࡀ࠶ࡿ㸬࢖ࣥࣇࣛ࡟୍⯡ⓗ࡟⏝࠸ࡽࢀࡿࢥࣥࢡ࣮ࣜࢺ࠾ࡼࡧ㗰ᮦࡣ㸪ࡇࢀࡽࡢ〇㐀᫬࡟≉࡟኱㔞ࡢ
&2 ࢆ᤼ฟࡍࡿࡇ࡜ࡀ▱ࡽࢀ࡚࠸ࡿ㸬࠶ࡿヨ⟬࡛ࡣ㸪ୡ⏺඲యࡢ &2 ⥲᤼ฟ㔞ࡢ⣙ 㸣ࢆࢭ࣓ࣥࢺ࡜⢒㗰ࡢ〇㐀࡛༨ࡵ࡚࠸ࡿ࡜ࡉࢀ  㸪⣲ᮦ〇㐀ࢆྵࡵࡓᘓタ⏘ᴗ඲య࡟࠾࠸࡚ࡶࡇࡢ๐ῶࡀồࡵࡽࢀࡼ࠺࡜ࡋ࡚࠸ࡿ㸬௒ࡸ࢖ࣥࣇࣛ㛵㐃⏘ᴗࡢࡳ࡞ࡽࡎ඲⏘ᴗ࡛ྲྀࡾ⤌ࡴ࡭ࡁႚ⥭ࡢㄢ㢟࡛࠶ࡿ㸬4㸬ࢧࢫࢸ࢖ࢼࣅࣜࢸ࢕ᛮ⪃࡟ᇶ࡙ࡃ࣐ࢿࢪ࣓ࣥࢺ
4-1ࢧࢫࢸ࢖ࢼࣅࣜࢸ࢕ࡢホ౯࢖ࣥࣇࣛࡢᛶ⬟↷ᰝ࡟࠾࠸࡚ࡇࢀࡲ࡛ᵓ⠏ࡉࢀ࡚ࡁࡓタィయ⣔࠶ࡿ࠸ࡣ↷ᰝయ⣔ࡣᏳ඲ᛶࢆ୰ᚰ࡟ࡋ࡚ࡁࡓ࡜ゝࡗ࡚ࡶ㐣ゝ࡛ࡣ࡞࠸㸬♫఍࢖ࣥࣇࣛ࡟ồࡵࡽࢀࡿᛶ⬟࡜ࡋ࡚Ᏻ඲ᛶࡀ᭱ࡶ㔜せ࡛࠶ࡿࡇ࡜࡟␲࠸ࡣ࡞࠸ࡀ㸪᫖௒ࡢᆅ㟈⅏ᐖࡸᅵ◁⅏ᐖࢆぢ࡚ࡶ㸪☜ಖࡉࢀࡿᏳ඲ᛶ࡟ࠕ⤯ᑐࠖ࡜࠸࠺ಖドࡣ࡞࠸㸬ࡑࡶࡑࡶ㸪タィ࡟࠾࠸࡚ࡣ㸪タィ౪⏝ᮇ㛫୰࡟᝿ᐃࡉࢀࡿእⓗస⏝ࢆ᝿ᐃࡋ࡚࠸ࡿࡀ㸬㛗ᮇⓗ࡞ኚືࡢண࡟ࡣ㝈⏺ࡀ࠶ࡿࡢ࡛㸪ᘓタᙜ᫬ࡢ⮬↛᮲௳ࡸ♫఍⎔ቃࢆ31๓ᥦ࡜ࡋ࡚࠸ࡿሙྜࡀከ࠸㸬୍⯡ࡢ࢖ࣥࣇࣛࡣ㸪㹼 ᖺ࣮࢜ࢲ࣮ࡢ౑⏝ࢆ๓ᥦ࡜ࡋ࡚↷ᰝࡀ࡞ࡉࢀࡿࡇ࡜ࡀከ࠸㸬ࡋ࠿ࡋ㸪㝈ࡽࢀࡓ⠊ᅖࡢࢹ࣮ࢱࡢ୰࡛෌⌧ᮇ㛫ࡀᩘⓒᖺࢆ㉸࠼ࡿᴟ➃஦㇟ࢆࡶࡗ࡜ࡶࡽࡋࡃ᝿ᐃࡍࡿࡢࡣ୙ྍ⬟࡛࠶ࡿࡓࡵ㸪ࡍ࡛࡟☜❧ࡉࢀࡓ࡜⪃࠼ࡽࢀ࡚࠸ࡿᏳ඲ᛶ࡟㛵ࡍࡿタィయ⣔ࡶࡲࡓ༑ศ࡛࡞࠸㸬ࡶࡋᏳ඲ᛶࡀ༑ศ࡛࡞࠸࡜ࡍࢀࡤ㸪ᴟ➃஦㇟࡟ࡼࡗ࡚࢖ࣥࣇࣛࡀᔂቯࡍࡿ༴㝤ᛶࡀ㧗ࡲࡗࡓࡾ㸪ኚ≧ࡢ㐍⾜࡟ࡼࡗ࡚࣮ࣘࢨࡢ୙Ᏻឤࡀ㧗ࡲࡗࡓࡾࡋ࡚㸪ࢧࢫࢸ࢖ࢼࣅࣜࢸ࢕ࡢほⅬ࠿ࡽࡣᴟࡵ࡚㔜኱࡞ၥ㢟࡛࠶ࡿ㸬ࢧࢫࢸ࢖ࢼࣅࣜࢸ࢕ᣦᶆࢆホ౯㍈࡜ࡋࡓタィయ⣔࡟ࡍࡿ࡟ࡣ㸪࢖ࣥࣇࣛࡀ₯ᅾⓗ࡟᭷ࡍࡿᏳ඲వ⿱ᗘࢆ࠸࠿࡟ṇ☜࡟ᐃ㔞໬࡛ࡁࡿ࠿࡟࠶ࡿ㸬ࢧࢫࢸ࢖ࢼࣅࣜࢸ࢕ࡢ⪃࠼᪉ࢆᑟධࡋࡓ LCM ࡢࢩࢼࣜ࢜ホ౯ࡢὶࢀࢆᅗ 6 ࡟♧ࡍ㸬ࡇࡢὶࢀࡣ㸪ࢧࢫࢸ࢖ࢼࣅࣜࢸ࢕タィ࡜⛠ࡋ࡚࠾ࡾ㸪タィ࠾ࡼࡧ⥔ᣢ⟶⌮࡟࠾ࡅࡿ⿵ಟ➼ࡢタィ࡟࠾࠸࡚ά⏝࡛ࡁࡿ᪂ࡋ࠸ᯟ⤌ࡳ࡛࠶ࡿ 7)㸬♫఍ᣦᶆ࡜ࡋ࡚ࡢᏳ඲ᛶࡸ౑⏝ᛶ࡟㛵ࡍࡿ↷ᰝࢆࣃࢫࡋࡓᚋ࡟㸪⤒῭ᣦᶆ࠾ࡼࡧ⎔ቃᣦᶆࢆ⟬ᐃࡋ࡚↷ᰝࡍࡿ㸬ࡇࢀࡽࡀせồᛶ⬟ࢆ‶㊊ࡋ࡞࠸ሙྜ㸪᮲௳ࢆኚ᭦ࡍࡿ࠿࡝࠺࠿ࡢุ᩿ࢆ⾜࠺࠿㸪࠶ࡿ࠸ࡣ↷ᰝࢆࣃࢫࡋ࡞ࡃ࡚ࡶࡼ࠸࡜ࡍࡿሙྜࡣḟࡢẁ㝵࡟㐍ࡴࡇ࡜ࡶྍ⬟࡛࠶ࡿ㸬᭱ᚋ࡟඲యࢆ⥲ྜⓗ࡟ุ᩿ࡋ࡚㸪ᚲせࡀ࠶ࢀࡤవ⿱ᗘࢆኚ᭦
ࡋ࡚ᡭ㡰ࢆ⧞ࡾ㏉ࡋ㸪᭱㐺໬ࢆᅗࡿ㸬⌧≧࡛ࡣ㸪⅏ᐖ࡟⪏࠼࠺ࡿᙉ㠌࡞࢖ࣥࣇࣛࡢᩚഛࡀ᭱ࡶ㔜せ࡛࠶ࡿࡇ࡜ࡢ୍ࡘ࡜⪃࠼ࡽࢀࡿࡓࡵ㸪࢖ࣥࣇࣛࡀ₯ᅾⓗ࡟᭷ࡍࡿᏳ඲వ⿱ᗘࢆᐃ㔞໬ࡍࡿࡇ࡜ࡀᚲせ࡜࡞ࡿ㸬ゝ࠸᥮࠼ࢀࡤ㸪వ⿱ᗘࡢࡉࡌຍῶ୍ࡘ࡛㸪࢖ࣥࣇࣛࡢࢧࢫࢸ࢖ࢼࣅࣜࢸ࢕
ࡣ኱ࡁࡃᕥྑࡉࢀࡿࡇ࡜࡟࡞ࡿ㸬࢖ࣥࣇࣛࡢタィ➼࡟࠾࠸࡚ࡣ㸪స⏝ࡸ᢬ᢠᛶ࡟㛵ࡍࡿ୙☜ᐃせᅉ࡟ᑐࡍࡿవ⿱ᗘࢆከࡃ࡜ࡾࡍࡂࡿ࡜㸪౛࠼ࡤᏳ඲ᛶࡣ༑ศ࡟☜ಖ࡛ࡁࡿࡶࡢࡢ㸪ᩚഛࡢࡓࡵࡢ㈝⏝ࡀୖ᪼ࡋ㸪ᮦᩱ౑⏝㔞ࡢቑ኱࡞࡝࡟ࡼࡗ࡚⎔ቃᣦᶆࡶᝏ࠸᪉ྥ࡟ືࡃ㸬ᇶᮏ᝟ሗ䛾཰㞟䞉ᩚ⌮䞉 ♫఍ⓗഃ㠃䞉 ⤒῭ⓗഃ㠃䞉 ⎔ቃⓗഃ㠃♫఍ⓗഃ㠃䛾せồᛶ⬟䛸వ⿱ᗘ䛾タᐃ<HV⤒῭ⓗ䞉⎔ቃⓗഃ㠃䛾せồᛶ⬟䛾タᐃ1Rᵓ㐀≀ㅖඖ䞉ᮦᩱ䞉᪋ᕤἲ➼䛾㑅ᐃ1Rవ⿱ᗘ䛾ኚ᭦<HVせồᛶ⬟䛾ኚ᭦♫఍ᛶᣦᶆ䛾⟬ᐃ♫఍ᛶ䛾↷ᰝ

1*

2.
⤒῭ᛶᣦᶆ䛾⟬ᐃ
<HV⤒῭ᛶ䛾
↷ᰝ

1*

2.

1R

⎔ቃᛶᣦᶆ䛾⟬ᐃ⎔ቃᛶ䛾↷ᰝ2.
⤊஢᮲௳䛾ኚ᭦

1*<HV᮲௳䛾ኚ᭦

1R

ᅗ 6 ࢧࢫࢸ࢖ࢼࣅࣜࢸ࢕ホ౯ࡢࣇ࣮ࣟ

32ࢧࢫࢸ࢖ࢼࣅࣜࢸ࢕ࡢほⅬ࠿ࡽࡳࡿ࡜㸪♫఍ᛶ࡜⤒῭ᛶ㸪⎔ቃᛶࡣ⫼཯ࡍࡿࡇ࡜ࡀከࡃ㸪ࡇࢀࡽࡢࣂࣛࣥࢫࢆ࡝ࡢࡼ࠺࡟ᅗࡿࡢ࠿ࡀ኱ࡁ࡞ၥ㢟࡜࡞ࡿ㸬ࢧࢫࢸ࢖ࢼࣅࣜࢸ࢕タィࡣ㸪ࢧࢫࢸ࢖ࢼࣅࣜࢸ࢕ࢆ⪃࠼ࡿഃ㠃࠿ࡽ࢖ࣥࣇࣛ࡬ࡢせồᛶ⬟ࢆタᐃࡋ㸪ࡑࢀࡽࡀ‶㊊ࡉࢀࡿᵓ㐀㸪ㅖඖ㸪ᮦᩱ㸪᪋ᕤἲ㸪⥔ᣢ⟶⌮ἲ➼ࢆỴᐃࡍࡿࡇ࡜࡟࡞ࡿ㸬ࡓࡔࡋ㸪ᚲࡎࡋࡶࡑࢀࡽࡢྛ㡯┠ࡀ᭱㐺࡛࠶ࡿ࡜ࡣ㝈ࡽࡎ㸪᭱⤊ⓗ࡟ࡣࣛ࢖ࣇࢧ࢖ࢡࣝࢆ㏻ࡋ࡚ࡢ᭱㐺໬ࢆ┠ᣦࡍࡶࡢ࡛࠶ࡿ㸬࢖ࣥࣇࣛࡢ LCM ࡛ࡣ㸪௦⾲ⓗ࡞」ᩘࡢᣦᶆࢆ⏝࠸࡚ࢩࢼࣜ࢜ࡢホ౯ࡀ࡞ࡉࢀࡿࡀ㸪ࡍ࡭࡚ࢆໟᣓࡍࡿ༢୍ࡢホ౯ᣦᶆࡀᏑᅾࡋ࡞࠸⌧≧࡟࠾࠸࡚ࡣ㸪ࢩࢼࣜ࢜ࡢ௦᭰᱌ࡢ୰࠿ࡽ᭱㐺࡞ゎࢆぢࡘࡅࡿࡇ࡜ࡣᐜ࡛᫆ࡣ࡞࠸㸬
4-2ࢧࢫࢸ࢖ࢼࣅࣜࢸ࢕ᣦᶆࡢࣂࣛࣥࢫ࢖ࣥࣇࣛࡢᏳ඲ᛶ࡟ᑐࡍࡿవ⿱ᗘࡣ⤒㦂࡛Ỵࡵࡽࢀ࡚ࡁࡓࡀ㸪ࡑࢀࡀ⤒῭ᣦᶆࡸ⎔ቃᣦᶆ࡟୚࠼ࡿᙳ㡪ᗘ࠶ࡿ࠸ࡣឤᗘ࡟ࡘ࠸࡚ࡣ⪃៖ࡉࢀ࡞࠸ࡇ࡜ࡀከ࠸㸬Ᏻ඲ᛶ࡟ᑐࡍࡿవ⿱ᗘࡢቑຍࡣ㸪ࡼࡾከࡃࡢ㈨※ࡸ࢚ࢿࣝࢠ࣮ࡀ᪋ᕤ࠾ࡼࡧ⥔ᣢ⟶⌮࡟࠾࠸࡚ᚲせ࡟࡞ࡿྍ⬟ᛶࡀ࠶ࡾ㸪ࡑࡢศࢥࢫࢺࡀ㧗ࡃ࡞ࡿ㸬㏫࡟㸪⤒῭ᛶࢆ᭱ࡶ㔜せどࡍࡿ⌧≧࡟࠾࠸࡚㸪࡛ࡁࡿࡔࡅవ⿱ᗘࢆᑠࡉࡃࡍࡿ㸦ࡍ࡞ࢃࡕ↷ᰝᘧ࡟࠾࠸࡚ 1.0 ࡟࡛ࡁࡿࡔࡅ㏆࡙ࡅࡿࡼ࠺࡟タィࡍࡿ㸧ࡼ࠺࡟ࡋࡀࡕ࡛࠶ࡿ㸬♫఍ᣦᶆ㸦౛࠼ࡤᏳ඲ᛶࡢవ⿱ᗘ㸧࡜⤒῭ᣦᶆ㸪⎔ቃᣦᶆ࡜ࡢ㛫ࡢ㐺ษ࡞ࣂࣛࣥࢫࢆ⪃៖ࡋ࡚㸪ࣛ࢖ࣇࢧ࢖ࢡࣝࡢྛẁ㝵࡛タᐃࡉࢀࡓ」ᩘࡢࢩࢼࣜ࢜ࡢ㑅ᢥ⫥ࡢ୰࠿ࡽ㐺ษ࡞ࢩࢼࣜ࢜ࢆ
㑅ᢥࡍࡿࡓࡵࡢヨࡳ࡜ࡋ࡚㸪ឤᗘศᯒࢆ⾜ࡗࡓ஦౛ 8)ࢆ⤂௓ࡍࡿ㸬஦౛ࡣ㸪㕲➽ࢥࣥࢡ࣮ࣜࢺ▴ᙧ᩿㠃༢⣧ࡣࡾࢆᑐ㇟࡜ࡋ࡚㠀ᖖ࡟༢⣧໬ࡋࡓィ⟬࡟ᇶ࡙ࡃࡶࡢ࡛࠶ࡿ㸬♫఍ᣦᶆࡣᏳ඲ᛶ
ࡢవ⿱ᗘ㸦Ji㸧㸪⤒῭ᣦᶆࡣᵓᡂᮦᩱࡢ┤᥋㈝㸪⎔ቃᣦᶆࡣ CO2 ᤼ฟ㔞ࡢࡳࢆ⪃៖ࡋ࡚࠸ࡿ㸬ࢭ࣓ࣥࢺ✀㢮ࡣ㸪ᬑ㏻࣏ࣝࢺࣛࣥࢻࢭ࣓ࣥࢺ㸪Ỉࢭ࣓ࣥࢺẚࡣ 50%࡛࠶ࡿ㸬ᅗ 7 ࡟㸪వ⿱ᗘࢆ 1.0
㹼1.5 ࡢ⠊ᅖ࡛ኚ໬ࡉࡏࡓ࡜ࡁࡢ CO2 ᤼ฟ㔞࠾ࡼࡧࢥࢫࢺࡢቑຍ⋡ࢆ♧ࡍ㸪వ⿱ᗘࢆ 1.1㹼1.5
࡟タᐃࡍࡿ࡜㸪CO2 ᤼ฟ㔞ࡀ 10%⛬ᗘቑຍࡋ㸪ࢥࢫࢺࡣ 16%⛬ᗘቑຍࡍࡿ㸬ࡑࡢቑຍࡢ⛬ᗘࡣ⏝࠸ࡿࢥࣥࢡ࣮ࣜࢺࡢရ㉁࡟ࡼࡗ࡚␗࡞ࡗ࡚ࡃࡿ㸬CO2 ᤼ฟ㔞࡜ࢥࢫࢺቑࡀ኱ࡁ࠸࠿↓ど࡛ࡁࡿࡶࡢ࠿ࡣ✀ࠎࡢุ᩿ᇶ‽࡟ࡼࡾ㸪୍ᴫ࡟ゝ࠼࡞࠸㸬౛࠼ࡤ㸪ࢥࢫࢺࡀ 10㸣ቑຍࡍࡿࡇ࡜ࡀチᐜࡉࢀࡿ࡜ࡍࡿ࡜㸪వ⿱ᗘࢆ⣙ 1.3 ࡟タᐃ࡛ࡁ㸪ࡑࡢ⤖ᯝ CO2 ᤼ฟ㔞ࡀ 6㸣⛬ᗘቑຍࡍࡿࡇ࡜
࡟࡞ࡿ㸬ࡇࡢࢥࢫࢺࡢቑຍศࡸ CO2 ᤼ฟ㔞ࡢቑຍศࡀ኱ࡁ࠸࠿࡝࠺࠿ࡣ㸪࢖ࣥࣇࣛࡀᔂቯࡋࡓሙྜࡢ᚟ᪧ࡟ࡼࡗ࡚Ⓨ⏕ࡍࡿศ࡜ࡢẚ㍑࡜࡞ࡿ㸬ᅗ 7 ࢧࢫࢸ࢖ࢼࣅࣜࢸ࢕ᣦᶆ㛫ࡢࣂࣛࣥࢫ

33

4-3 LCM ࢩࢼࣜ࢜ホ౯㐺ษ࡞వ⿱ᗘࡀタᐃ࡛ࡁࡓ࡜ࡋ࡚㸪⤒῭ᣦᶆ࡜⎔ቃᣦᶆࢆヨ⟬ࡋ㸪ࢩࢼࣜ࢜ࢆホ౯ࡋࡓ஦౛ࢆ⤂௓ࡍࡿ㸬ᅗ 8 ࡣ㸪5 ࡘࡢᱞᶫ⩌ࢆᑐ㇟࡜ࡋ࡚㸪೺඲ᗘࡢపୗࢆ࣐ࣝࢥࣇࣔࢹࣝ࡟ࡼࡾணࡋ㸪౽┈࡜ࡑࢀ࡟ᑐࡍࡿᥐ⨨ࡢ㈝⏝࠿ࡽồࡵࡓᱞᶫ⩌඲యࡢᖹᆒ NPV ࢆ㸪ᥐ⨨ࡢࡓࡵ࡟⏝ព࡛ࡁࡿᖺ㛫ண⟬࡟ᛂࡌ࡚⟬ฟࡋࡓࡶࡢ࡛࠶ࡿ 9)㸬೺඲ᗘࡣᩘᏐࡀ኱ࡁࡃ࡞ࡿ࡟ࡘࢀ࡚ຎ໬ࡀ㐍⾜ࡋຊᏛᛶ⬟ࡀࡼࡾపୗࡋࡓ≧ែࢆ⾲ࡍ㸬ࡲࡓྠᅗ࡛♧ࡍPࡣ㸪࣐ࣝࢥࣇࣔࢹࣝ࡟࠾࠸࡚ຎ໬㐍⾜ࡢ㏿ᗘࢆ⾲ࡍ㑄⛣☜⋡ࡢࡤࡽࡘࡁࢆᑐᩘṇつศᕸ࡛⾲ࡋࡓ㝿ࡢᖹᆒ್ࢆ⾲ࡍࣃ࣓࣮ࣛࢱ࡛㸪Pࡀ኱ࡁ࠸࡯࡝㑄⛣☜⋡ࡀ኱ࡁࡃ㸪ࡘࡲࡾຎ໬㏿ᗘࡀ㏿࠸ࡇ࡜࡟࡞ࡿ㸬࠸ࡎࢀࡢ㑄⛣☜⋡࡟࠾࠸࡚ࡶ㸪ᖺ㛫ண⟬ࡢቑຍ࡟క࠸ᖹᆒ NPV ࡀቑຍࡍࡿࡀ㸪ࡇࢀࡣᖺ㛫ண⟬ࡀ኱ࡁ࠸࡯࡝⿵ಟ࡟せࡍࡿᮇ㛫ࡀ▷ࡃ࡞ࡿࡓࡵ㸪౪⏝೵Ṇ࡟క࠺౽┈ࡢᦆኻࡀῶᑡࡋࡓࡇ࡜㸪࠾ࡼࡧከࡃࡢᱞᶫ࡟࠾࠸
࡚ண㜵ᥐ⨨ᆺࡢࢩࢼࣜ࢜ࢆ࡜ࡿࡇ࡜ࡀ࡛ࡁ㸪ྜィ⿵ಟ㈝⏝ࢆపῶ࡛ࡁࡓࡓࡵ࡛࠶ࡿ㸬ࡲࡓ㸪Pࡀᑠࡉ࠸ሙྜࡣ㸪ᖺ㛫ண⟬ࡀ࠶ࡿ್ࢆ㉸࠼ࡿ࡜ᖹᆒ NPV ࡢቑຍࡀ㢌ᡴࡕ࡟࡞ࡿ㸬ᖺ㛫ண⟬ࢆቑࡸࡋ࡚ࡶ㸪ቑຍศࡀ⿵ಟ࡟౑ࢃࢀࡿࡇ࡜ࡣ࡞ࡃ㸪ࡇࡢ್௨ୖࡢண⟬ࡢቑ㢠ࡣᚲせ࡞࠸ࡇ࡜ࢆ♧ࡋ࡚࠸ࡿ㸬ࡲࡓ㸪ຎ໬㏿ᗘࡀⴭࡋࡃ኱ࡁ࠸ሙྜࡣ㸪ྠᅗࡢ⠊ᅖ࡛ᖺ㛫ண⟬ࢆቑ㢠ࡋ࡚ࡶ㸪ࡶࡣࡸ NPV ࢆ⥔ᣢࡍࡿࡓࡵ࡟ࡣ༑ศ࡛࡞ࡃ㸪ᥐ⨨ࡀ㏣࠸௜࠿࡞࠸ࡇ࡜࡜࡞ࡿ㸬ࡇࡢࡼ࠺࡟㸪ᑐ㇟࡜ࡍࡿ᪋タ⩌ࡢຎ໬㏿ᗘࢆᢕᥱࡋࡓୖ࡛᪋タ⩌ࡀ⥔ᣢࡍ࡭ࡁ೺඲ᗘࡢ┠ᶆࢆࢩࢼࣜ࢜ୖ࡛タᐃࡋ㸪ᖹᆒ NPV ࢆ࡯ࡰ᭱኱࡟⥔ᣢࡍࡿࡓࡵࡢ᭱㐺࡞ᖺ㛫ᥐ⨨ண⟬ࢆỴᐃࡍࡿࡇ࡜ࡀ࡛ࡁࡿ㸬ࡲࡓ㸪ᖺ㛫ண⟬ࡢᯟࡢ୰࡛࡝ࡢࡼ࠺࡟࢖ࣥࣇࣛࢆ⥔ᣢࡋ࡚࠸ࡃࡢࡀ NPV ࢆᣦᶆ࡜ࡋࡓሙྜ࡟᭱ࡶ᭷ຠ࡛࠶ࡿ࠿ࡢࢩࢼࣜ࢜ࡶᵓ⠏ࡍࡿࡇ࡜ࡀ࡛ࡁࡿ㸬ᖺ㛫ண⟬ࡢ⠊ᅖ࡛ࡣ࡝࠺ࡍࡿࡇ࡜ࡶ࡛ࡁ࡞ࡅࢀࡤ㸪タィ࡟❧ࡕ㏉ࡗ࡚᪋タࡢせồᛶ⬟࡞࡝ࢆぢ┤ࡍࡇ࡜ࡶ⪃࠼ࡽࢀࡿࡀ㸪ຎ໬㏿ᗘ⮬యࢆⅬ᳨デ᩿࡛ࣔࢽࢱࣜࣥࢢࡋ࡚࠸ࡃࡇ࡜ࡀ୙ྍḞ࡛࠶ࡿࡢ࡛㸪ᣦᶆ㛫ࡢࣂࣛࣥࢫࢆ⪃៖ࡋ࡚ࢩࢼࣜ࢜ࢆࡲࡎᵓ⠏ࡋ㸪౑⏝ẁ㝵࡛㝶᫬ぢ┤ࡋࢆࡋ࡚࠸ࡃࡢࡀ⌧ᐇⓗ࡞ᑐᛂ࡛࠶ࡿ㸬ḟ࡟㸪ᅗ 8 ࡜ྠᵝࡢᱞᶫ᪋タ⩌ࡢ㕲➽ࢥࣥࢡ࣮ࣜࢺୖ㒊ᕤ࡟࠾࠸࡚㸪NPV ࠾ࡼࡧ CO2 ᤼ฟ㔞ࢆᣦᶆ࡜ࡋࡓࢩࢼࣜ࢜ᵓ⠏ࡢ஦౛ 10)ࢆᅗ 9 ࡟♧ࡍ㸬ྠᅗࡣ㸪౑⏝ẁ㝵࡟╔┠ࡋࡓ⥔ᣢ⟶⌮ࡢࢩࢼࣜ࢜࡜ࡋ࡚ண㜵ᥐ⨨㸦PM㸧࡜஦ᚋᥐ⨨㸦CM㸧ࡢẚ㍑ࢆ⾜ࡗࡓࡶࡢ࡛࠶ࡿ㸬ࡲࡓ㸪౑⏝ࢭ࣓ࣥࢺ࡜ࡋ࡚ᬑ㏻࣏ࣝࢺࣛࣥࢻࢭ࣓ࣥࢺ㸦O㸧࠾ࡼࡧ㧗⅔ࢭ࣓ࣥࢺ B ✀㸦B㸧ࢆẚ㍑ࡋ࡚࠸ࡿ㸬ࡇࢀࡽࡢࢭ࣓ࣥࢺࢆ⏝࠸ࡓሙྜࡢሷᐖࡢண

࡟ࡘ࠸࡚ࡣ㸪ᅵᮌᏛ఍ࢥࣥࢡ࣮ࣜࢺᶆ‽♧᪉᭩࡛ᚓࡽࢀࡿᣑᩓಀᩘࢆ࣐ࣝࢥࣇࣔࢹࣝࡢ㑄⛣☜⋡࡟཯ᫎࡉࡏࡿࡇ࡜࡛⾜ࡗ࡚࠸ࡿ㸬
NPV ࡣ㧗࠸࡯࡝ᮃࡲࡋ࠸ࢩࢼ࡛ࣜ࢜࠶ࡿࡢ࡛㸪ࡇࡢ஦౛࡛ࡣ 100 ᖺ㛫ࡢ NPV ࡀ᭱኱ࡢ PM-Bࡀ㑅ᢥࡉࢀࡿࡀ㸪PM-B㸪CM-B㸪PM-O ࡣ࡯ࡰྠࡌ NPV ࡜࡞ࡗ࡚࠾ࡾ኱ᕪࡣ࡞࠸㸬ࡴࡋࢁ㸪CM-O ࡼࡾࡣඃ఩࡞ࢩࢼ࡛ࣜ࢜࠶ࡿ࡜⤖ㄽ࡙ࡅࡽࢀࡿ㸬CO2 ᤼ฟ㔞ࡣ㸪ሷᐖࡢ㐍⾜࡟కࡗ࡚೺඲ᗘࡀ࠶ࡿ㜈್ࢆୗᅇࡗࡓሙྜ࡟⾜࠺ᥐ⨨㸦⿵ಟ㸧࡟ࡼࡗ࡚⟬ฟࡉࢀࡿࡶࡢ࡛㸪ᑠࡉ࠸࡯࡝⎔ቃⓗഃ㠃࠿ࡽࡣᮃࡲࡋ࠸㸬ࡇࡕࡽࡶ PM-B ࡀ᭱ᑠ࡛㸪ḟ࠸࡛ CM-B ࡜ PM-O ࡀ࡯ࡰྠ್㸪CM-Oࡀ┦ᙜ኱ࡁ࡞್ࢆ⟬ฟࡋ࡚࠸ࡿ㸬ࡇࢀࡽࢆ⥲ᣓࡍࡿ࡜㸪PM-B ࡀ⤒῭ᣦᶆ࡜⎔ቃᣦᶆࡢ୧᪉ࢆ‶ࡓࡍࢩࢼ࡛ࣜ࢜࠶ࡿ࡜ุ᩿ࡉࢀ㸪CM-O ࡣ㑅ᢥࡉࢀࡿྍ⬟ᛶࡢ࡯࡜ࢇ࡝࡞࠸ࢩࢼ࡛ࣜ࢜࠶ࡿ࡜ゝ࠼ࡿ㸬ࡇࡇ࡛⤂௓ࡋࡓ஦౛ࡣၥ㢟ࢆ༢⣧໬ࡋࡓࡶࡢ࡛࠶ࡾ㸪ᐇ㝿࡟ࡣࡉࡽ࡟ከࡃࡢせᅉࢆ⪃៖ࡋ࡚⾜࠺ࡇ࡜ࡣゝ࠺ࡲ࡛ࡶ࡞࠸ࡀ㸪ࣛ࢖ࣇࢧ࢖ࢡࣝ࡟࠾ࡅࡿᣦᶆࡢኚ໬ࢆண␎ࢆ❧࡚ࢩࢼࣜ࢜ࢆᵓ⠏ࡍ࡭ࡁ࡛࠶ࡿ㸬34ࡋ㸪ࡑࢀ࡟ᛂࡌ࡚ᡓᖹᆒDPȝ 

ȝ ȝ ȝ ȝ ᖹᆒNPV㸦൨෇㸧ȝ ȝ ȝ ȝ ȝ ᖺ㛫ண⟬㸦൨෇㸧ᅗ 8 NPV ࡟ᇶ࡙ࡃࢩࢼࣜ࢜ホ౯13930%

139&0%

139䠄൨෇䠅

139&02

&2 &02









&2 &0%&2 302

&2᤼ฟ㔞䠄 NJ䠅

139302

&2 30% ᮇ㛫䠄ᖺ䠅ᅗ 9 NPV ࡜ CO2 ᤼ฟ㔞࡟ᇶ࡙ࡃࢩࢼࣜ࢜ホ౯4-4⥔ᣢ⟶⌮࡜ࡢ㛵ࢃࡾ࢖ࣥࣇࣛࡢࢧࢫࢸ࢖ࢼࣅࣜࢸ࢕ホ౯࡛㔜せ࡞ࡶ࠺୍ࡘࡢどⅬࡀ㸪౑⏝୰ࡢᛶ⬟పୗ࡜పୗࡋࡓᛶ⬟ࡢᅇ᚟࡛࠶ࡿ㸬ࡑࡢࡼ࠺࡟ࡋ࡚࢖ࣥࣇࣛࡀ▷ᮇ㛫࡛౑⏝೵Ṇ࡟⮳ࡿࡇ࡜ࢆ㜵Ṇ࡛ࡁࢀࡤ㸪ࢧࢫࢸ࢖ࢼࣅࣜࢸ࢕ࡢ࠸ࡎࢀࡢഃ㠃࠿ࡽࡶ᭷ຠ࡞㑅ᢥ⫥࡜࡞ࡾᚓࡿ㸬࢖ࣥࣇࣛࡢᛶ⬟ࡣ㸪✀ࠎࡢእⓗస⏝࡟ࡼࡾపୗࡍࡿ㸬௦⾲ⓗ࡞ᛶ⬟పୗࡢせᅉ࡜ࡋ࡚㗰ࡢ⭉㣗ࡸࢥࣥࢡ࣮ࣜࢺࡢ୰ᛶ໬➼ࡀ࠶ࡾ㸪࠸ࡎࢀࡶẚ㍑ⓗ⦆ࡸ࠿࡟㐍⾜ࡍࡿ㸬୍᪉㸪ᆅ㟈ࡸྎ㢼➼ࡣ✺Ⓨⓗ࡟ᛶ⬟ࢆపୗࡉࡏࡿせᅉ࡜࡞ࡿ㸬ࡇࡢࡼ࠺࡞ᛶ⬟పୗ࡟ᑐࡋ࡚㸪タィ࡛ࡢ༑ศ࡞㓄៖㸦⪏ஂタィ㸧࡜ྠ᫬࡟ⓗ☜࡞⥔ᣢ⟶⌮ࡢ୧⪅࡛ᑐᛂࡍࡿᚲせࡀ࠶ࡿ㸬⥔ᣢ⟶⌮࡛ࡣ㸪ᚲせ࡟ᛂࡌ࡚⿵ಟ㸪⿵ᙉ࡜࠸ࡗࡓᥐ⨨ࡀ࡞ࡉࢀ㸪タィ౪⏝ᮇ㛫୰࡟せồᛶ⬟ࡀ႙ኻࡍࡿࡇ࡜ࢆ㜵࠸࡛࠸ࡿ㸬ࡇࡢᑐᛂ࡟ከ኱ࡢ㈝⏝ࢆᚲせ࡜ࡍࡿࡇ࡜ࡶ࠶ࡿ㸬ࡑࡢࡓࡵ㸪ᛶ⬟పୗࡀ㢧ⴭ࡛ẁ㝵࡛ẚ㍑ⓗᐜ᫆࡟ᑐ⟇ࡀᐇ᪋࡛ࡁࡿ㸪࠸ࢃࡺࡿண㜵ಖ඲࡟ࡼࡿᑐᛂࢆ࡜ࡿࡇ࡜ࡀ᥎ዡࡉࢀ࡚࠸ࡿ㸬ࡇࢀࡽ࡟ࡘ࠸࡚ࡶ /&0 ࡟ࡼࡗ࡚㐺ษ࡟ྲྀࡾᢅ࠼㸪ࢩࢼࣜ࢜ホ౯ࡀྍ⬟࡛࠶ࡿ࡜ᮇᚅࡋ࡚࠸ࡿ㸬

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5㸬࠾ࢃࡾ࡟⤒῭♫఍ࡀᡂ⇍ࡋ㸪ேཱྀῶᑡ࣭㉸㧗㱋໬♫఍ࢆ㏄࠼ࡿᡃࡀᅜ࡟࠾࠸࡚ࡣ㸪࢖ࣥࣇ࡛ࣛࡣ᪂つࡢᘓタࡼࡾࡶ᪤Ꮡࢫࢺࢵࢡࡢά⏝࡟㔜ࡁࡀ⨨࠿ࢀ࡚࠸ࡿ㸬୍᪉㸪Ⓨᒎ㏵ୖᅜ࡛ࡣ㸪ࡲࡔ࢖ࣥࣇࣛࡢᘓタ࡟㟂せࡀ࠶ࡾ㸪⭾኱࡞ᘓタᢞ㈨ࡀ⥆࠸࡚࠸ࡿ㸬ࡋ࠿ࡋ㸪㌟ࡢ୔ࢆ㉸࠼ࡓ㔞ࡢࢫࢺࢵࢡࡀࡶࡓࡽࡍᮍ᮶ࡢ♫఍ࡀ࡝ࡢࡼ࠺࡞ࡶࡢ࡟࡞ࡿ࠿ࡣ᫂ࡽ࠿࡛࠶ࡿ㸬ࡑࢀ࡟ᑐᛂࡍࡿࡓࡵ࡟ࡣ㸪ࢧࢫࢸ࢖ࢼࣅࣜࢸ࢕ࡢᛮ⪃࡛࢖ࣥࣇࣛ࡟ྥࡁྜ࠺ᚲせࡀ࠶ࡿ㸬࢖ࣥࣇࣛࡣ㸪㐺ษ࡟タィ㸪ᐇ⾜㸪࠾ࡼࡧಖᏲࡉࢀࡿ࡜㸪ࡁࡕࢇ࡜ά⏝ࡉࢀ㸪㛗ᑑ࿨໬ࢆ㐩ᡂ࡛ࡁࡿࡶࡢ࡛࠶ࡿ㸬࢖ࣥࣇࣛࡢࣛ࢖ࣇࢧ࢖ࢡࣝ࡟࠾࠸࡚㸪࣮ࣘࢨ࠶ࡿ࠸ࡣ♫఍ࡀᮇᚅࡍࡿᶵ⬟࡜ᛶ⬟ࢆ☜ಖࡍࡿࡓࡵ࡟㸪/&0 ࡛ࡣࢩࢼࣜ࢜ࢆ௓ࡋ࡚ィ⏬㸪タィ㸪᪋ᕤ㸪౑⏝࠾ࡼࡧᗫᲠࡢྛẁ㝵࡟࠾࠸࡚෇⁥࡞᝟ሗࡢఏ㐩࡜ඹ᭷࡜༑ศ࡟⾜࠺ࡇ࡜ࢆពᅗࡋ࡚࠸ࡿ㸬ࡲࡓ㸪ࢧࢫࢸ࢖ࢼࣅࣜࢸ࢕࡟㛵㐃ࡍࡿࡶࡢࡣ௒ᚋ᭱ࡶ㔜せ࡞せồᛶ⬟࡜ࡋ࡚ྲྀࡾᢅࢃࢀࡿࡇ࡜࡟࡞ࡿ࡜⪃࠼ࡽࢀࡿ㸬ࡑࡢࡓࡵ㸪/&0࡛ࡣ㸪ࢩࢼࣜ࢜ࢆᵓ⠏ࡍࡿࡓࡵ࡟㸪ࢧࢫࢸ࢖ࢼࣅࣜࢸ࢕ࡢ  ഃ㠃࡟ᇶ࡙ࡃ」ᩘࡢᣦᶆࢆ⏝࠸ࡿࡇ࡜ࢆᥦ᱌ࡋ࡚࠸ࡿ㸬ࡓࡔࡋ㸪ࡇࢀࡽᣦᶆ㛫ࡢ᭱㐺࡞ࣂࣛࣥࢫࢆỴᐃࡍࡿࡢࡣ⌧≧࡛ࡣᐜ࡛᫆ࡣ࡞ࡃ㸪ᢏ⾡⪅ࡢ▱ᜨ࡜᝿ീຊࡀࡲࡍࡲࡍ㔜せ࡟࡞ࡗ࡚ࡃࡿ㸬ᮏ✏࡛㏙࡭ࡓ /&0 ࡢ⪃࠼᪉ࢆල⌧໬ࡍࡿࡶࡢ࡜ࡋ࡚  ᖺ  ᭶࡟ࢥࣥࢡ࣮ࣜࢺᵓ㐀≀ࢆᑐ㇟࡜ࡋ࡚㸪ⴭ᭩ࡀࢥࣥࣅ࣮ࢼࢆົࡵࡓᅜ㝿つ᱁ࡀไᐃࡉࢀࡓ  㸬ࡲࡓ㸪ᮏ✏ࡣ᪤Ⓨ⾲ࡢㄽᩥ ࢆ࣮࣋ࢫ࡜ࡋࡓࡶࡢ࡛࠶ࡿ㸬ཧ⪃ᩥ⊩1) ,QWHUJRYHUQPHQWDO3DQHORQ&OLPDWH&KDQJH  Special Report on Global Warming of 1.5C2) <RNRWD+  3UDFWLFDODSSOLFDWLRQRIOLIHF\FOH PDQDJHPHQWV\VWHPIRUVKRUHSURWHFWLRQIDFLOLWLHV
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