Solutions Manual for Facilities Design, 5e by Sunderesh Herag
m m m m m m m m
u (All Chapters) m m
CHAPTER 1 - Introduction to Facility Design
m m m m m m
1.4 Solutions
1. Thismismanmopen-endedmquestionmandmcouldmbemgivenmasmammini-projectmformstudents.
2. Designmproblemsmaremthosemthatmhavemamlongermtimemspan,mtypicallymthreemtomfivemyearsmorm
more,mwhereasmplanningmproblemsmhavemamshortermtimemspan.mStudentsmwillmcomemupmwithm
amlongmlistmofmdesignmandmplanningmproblemsmandmFigurem1.1mshouldmbemofmsomemhelp.mAlt
houghmitmismdesirablemtomsolvemthemtwomproblemsmsimultaneously,msomthatmamsolutionmsatisfi
esmdesignmandmoperationalmperformancemmeasures,mdoingmsommakesmthemproblemmintractable
mandmhardmtomsolve.
S.S.mHeragu,mFacilitiesmDesig 2
n
, CHAPTER 2 – Supply Chain Design
m m m m m
2.6 Solutionsm
1. Studentsmaremencouragedmtomconsultmbusinessmpublicationsmandmtrademmagazinesmtomidentify
mthemsupplymchain mdesignmandmoperational mtrendsmwitnessedminmthempastm15myears.
2. Oncemagain,mamconsultationmofmbusinessmpublicationsmandmtrademmagazinesmwillmhelpmthemstu
dentsmidentifymcompaniesminmthemdisruptiveminnovationmspace.
S.S.mHeragu,mFacilitiesmDesig 3
n
, CHAPTER 3 – Logistics and Location Models
m m m m m m
3.11 Solutions m
1. AsmindicatedminmSectionm3.1masmwellmasmChapterm1,mfacilitymlocationmmustmbemaddressedminm
themverymearlymstagesmofmfacilitymdesignm–
masmsoonmasmthe mproductsmto mbemproduced mand mmarkets mtombemservedmhavembeenmidentified.
2. Facilitymlocationmismamsub-
problemminmlogisticsmmanagement.mAsmdefinedminmSectionm3.1,mlogisticsmmanagementmcovers
mnotmonlymlocation,mallocation,mbutmalsomthe mdistributionmmethods,mcosts,mandmamnumbermofmo
thermlogisticsmrelatedmfactors.
3. Itmshouldmservemthemneedsmofmthemcompany,mminimizemcosts,mmustmmeshmwellmwithmthemexis
tingmnetworkmofmsupplymchainmofmsuppliers,mplantsmandmcustomers,metc.mThismismamgoodmque
stionmformin-classmdiscussion.
4. SeemSectionm3.3.
5. SeemSectionm3.3.
6. SeemTablem3.1.
7. Thismismanminterestingmprojectmformundergraduatemstudentsmthatmcouldmbemsupplementedmwith
min-mclassmdiscussion.
8. Basedm onm them calculationsm donem inm them tablem below,m wem findm thatm sitem #6m ism them bestm lo
cationmbasedmonmthemsubjectivemfactors.
LocationmFactors
0.15 0.2 0.4 0.25
SitemNumber 1 2 3 4 Score
1 90 40 80 70 71.00
2 100 30 80 50 65.50
3 50 80 85 60 72.50
4 60 90 60 75 69.75
5 90 30 65 80 65.50
6 90 30 85 85 74.75
9. Basedmonmthemcalculationsmdoneminmthemtablembelow,mwemfindmthatmsitem#3mismthembestmlocationm
basedmonmthemsubjectivemfactors.
LocationmFactors
0.4 0.2 0.3 0.1
SitemNumber 1 2 3 4 Score
1 55 20 10 50 34
2 20 75 80 50 52
3 90 15 85 100 74.5
4 80 95 20 25 59.5
5 30 90 25 25 40
Explanation:
S.S.mHeragu,mFacilitiesmDesig 4
n
, Sitem1:m0.4(55)m+0.2(20)m+0.3(10)m+0.1(10)m=m34
S.S.mHeragu,mFacilitiesmDesig 5
n
m m m m m m m m
u (All Chapters) m m
CHAPTER 1 - Introduction to Facility Design
m m m m m m
1.4 Solutions
1. Thismismanmopen-endedmquestionmandmcouldmbemgivenmasmammini-projectmformstudents.
2. Designmproblemsmaremthosemthatmhavemamlongermtimemspan,mtypicallymthreemtomfivemyearsmorm
more,mwhereasmplanningmproblemsmhavemamshortermtimemspan.mStudentsmwillmcomemupmwithm
amlongmlistmofmdesignmandmplanningmproblemsmandmFigurem1.1mshouldmbemofmsomemhelp.mAlt
houghmitmismdesirablemtomsolvemthemtwomproblemsmsimultaneously,msomthatmamsolutionmsatisfi
esmdesignmandmoperationalmperformancemmeasures,mdoingmsommakesmthemproblemmintractable
mandmhardmtomsolve.
S.S.mHeragu,mFacilitiesmDesig 2
n
, CHAPTER 2 – Supply Chain Design
m m m m m
2.6 Solutionsm
1. Studentsmaremencouragedmtomconsultmbusinessmpublicationsmandmtrademmagazinesmtomidentify
mthemsupplymchain mdesignmandmoperational mtrendsmwitnessedminmthempastm15myears.
2. Oncemagain,mamconsultationmofmbusinessmpublicationsmandmtrademmagazinesmwillmhelpmthemstu
dentsmidentifymcompaniesminmthemdisruptiveminnovationmspace.
S.S.mHeragu,mFacilitiesmDesig 3
n
, CHAPTER 3 – Logistics and Location Models
m m m m m m
3.11 Solutions m
1. AsmindicatedminmSectionm3.1masmwellmasmChapterm1,mfacilitymlocationmmustmbemaddressedminm
themverymearlymstagesmofmfacilitymdesignm–
masmsoonmasmthe mproductsmto mbemproduced mand mmarkets mtombemservedmhavembeenmidentified.
2. Facilitymlocationmismamsub-
problemminmlogisticsmmanagement.mAsmdefinedminmSectionm3.1,mlogisticsmmanagementmcovers
mnotmonlymlocation,mallocation,mbutmalsomthe mdistributionmmethods,mcosts,mandmamnumbermofmo
thermlogisticsmrelatedmfactors.
3. Itmshouldmservemthemneedsmofmthemcompany,mminimizemcosts,mmustmmeshmwellmwithmthemexis
tingmnetworkmofmsupplymchainmofmsuppliers,mplantsmandmcustomers,metc.mThismismamgoodmque
stionmformin-classmdiscussion.
4. SeemSectionm3.3.
5. SeemSectionm3.3.
6. SeemTablem3.1.
7. Thismismanminterestingmprojectmformundergraduatemstudentsmthatmcouldmbemsupplementedmwith
min-mclassmdiscussion.
8. Basedm onm them calculationsm donem inm them tablem below,m wem findm thatm sitem #6m ism them bestm lo
cationmbasedmonmthemsubjectivemfactors.
LocationmFactors
0.15 0.2 0.4 0.25
SitemNumber 1 2 3 4 Score
1 90 40 80 70 71.00
2 100 30 80 50 65.50
3 50 80 85 60 72.50
4 60 90 60 75 69.75
5 90 30 65 80 65.50
6 90 30 85 85 74.75
9. Basedmonmthemcalculationsmdoneminmthemtablembelow,mwemfindmthatmsitem#3mismthembestmlocationm
basedmonmthemsubjectivemfactors.
LocationmFactors
0.4 0.2 0.3 0.1
SitemNumber 1 2 3 4 Score
1 55 20 10 50 34
2 20 75 80 50 52
3 90 15 85 100 74.5
4 80 95 20 25 59.5
5 30 90 25 25 40
Explanation:
S.S.mHeragu,mFacilitiesmDesig 4
n
, Sitem1:m0.4(55)m+0.2(20)m+0.3(10)m+0.1(10)m=m34
S.S.mHeragu,mFacilitiesmDesig 5
n
