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Temostimportantachievementwasthedetermina-
tionofthemoduleusedintheHellenisticeraforlaying
outthecityandthehypotheticallocationofthepoint
fromwhichtheconstructionstarted.
Finallyitisworthpointingoutthatsimilardocu-
mentationintheformofgeophysicalmaps,photo-
graphssubjectedtophotogrammetricmethodsorthree-
dimensionalmodelsoftheterrainhasbeendeveloped
foranumberofsitesotherthanPtolemais,including
intheMediterraneanbasin.Awideapplicationofnon-
invasivemethodsisbecomingastandardresearchpro-
cedure.InthecaseofPtolemais,however,thedatafrom
non-invasivesurveyshavebeensupplementedwith
archaeologicalcommentaryandtreatedonanequal
footingwithothersources(gainedinthecourseofex-
cavationsoftextualanalysisandepigraphicstudies)to
reconstructthepast.Asaresult,acontributionhasbeen
madeinbotharchaeologicalandhistoricaltermstoour
knowledgeofNorthAfricainantiquityandblazingnew
trailsforresearchinthisfield.
Inthecourseoftheproject,alltheremainsofthe
citywallsstillvisibleonthesurfaceweredocumented
inamodernway,whileinvisiblerelics,whosepresence
causesdeviationsinphysicalpropertiesofthesoilwhich
registerasgeophysicalanomalies,weremapped.
Tedatahavebeenstoredonaproprietaryserver
andmadeavailableontheinternet,thusintroducing
themtogeneralcirculationintheacademicworld.All
theinformationhasbeenintegratedintoasinglesystem
whichallowsforthecreationofdilerentlevelsofaccess
andcontroloftheirusebyauthorisedpersonnel.
Aftermappingtheremainsinvisibleonthesurface
andconfrontingthedatawithresultsofpreviousexca-
vations,itwaspossibletodeveloparchaeologicalcom-
mentaryregardingsuchissuesasthereconstructionof
thecity’slayoutandrecreationofthecitygrid;location,
size,layoutandfunctionofindividualpublicbuildings
(theatres,amphitheatre,bouleuterion,gymnasia,tem-
ples)andtheirplaceinthecontextofthecity’sgeneral
plan.Incontinuingtopographicresearchinitiatedby
ProfessorTomaszMikocki,focuswassquarelyonissues
relatedtothecity’splanningandorganisationofpublic
spaceandprivateconstruction.Hypotheseswerealso
presentedfortheexactroutingofthecitywalls,location
oftowersandgatesandtheirlinkstotheexistingtrans-
portsystem.Non-invasivesurveysprovidednewdata
allowingforverificationandcompletionofhypotheses
regardingthecity’sreconstructionatvariousstagesof
itsdevelopment(includingthereconstructionafterthe
A.D.365earthquake)andthechangesinbuildingfunc-
tionsandlocationsinlateantiquity.
Incarryingoutresearchontheprivateconstruc-
tion,thesurvivingremainsofhousesuncoveredinthe
courseofexcavationswerediscussedinthecontextof
theentireinsulae.Tiswaspossiblethankstothere-
constructionoftheinsulae’slayoutonthebasisofthe
observedgeophysicalanomalies.Tedataallowedfor
thedeterminationofthesizeofinsulae,thewidthof
thechieftransportarteriesandsidestreets,aswellasthe
verificationofhypothesesregardingmeasurementscales
usedinfoundingthecity.Teyalsoconfirmedthedat-
ingofthemainactivitiesleadingtothecity’sfoundation
tothereignofPtolemyISoter,thatistotheendofthe
fourthcenturyB.C.
Fromthepointofviewofarchaeologicalgeophys-
ics,resultswereobtainedtoformthebasisofextending
analyseswithaviewtoanoptimaluseofnon-invasive
surveymethodsatsiteswithmulti-layeredarchitectural
remains.Suchbuildingremains,datingtodilerentpe-
riodsandcharacterisedbyplanchangesinindividual
structures,shiftsinaxesanddirectionsofstreetsand
transportarteries,produceanomaliesthatareveryhard
tointerpret.Suchanomaliesareinpracticeimpossible
tolinktospecificremains.Evenapreliminaryanaly-
sisofPtolemaissurveyresultsshowsthatasuccessful
andrelativelysafeinterpretationofanomalysources
canbeconducted,ifitisbasednotjustongeophysi-
calmeasurementresults,butalsolinkedtoresultsof
