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SIDRA软件是交叉口设计和评估的工具。SIDRA软件在确定』交叉口交通拥挤的原因,在模拟改善措施对信号交叉口的影响方面是非常有效的。
Micro-analyticalsoftwareforintersectionevaluationanddesign
SIDRAINTERSECTIONisanadvancedmicro-analyticaltrafficevaluationtoolthatemployslane-by-laneandvehicledrivecyclemodels.SIDRAINTERSECTIONisarenownedsoftwarepackageused
worldwideforintersectioncapacity,levelofserviceandperformanceanalysisbytrafficdesign,operationsand
planningprofessionals.
IntersectionEvaluationandDesign
UsingSIDRAINTERSECTION,youcanevaluateandcomparecapacity,levelofserviceandperformanceof
alternativetreatmentsinvolvingsignalisedintersections,roundabouts,two-waystopandgive-way(yield)sign-control,all-waystopsigncontrol,single-pointurbaninterchanges,signalisedmidblockcrossingsforpedestrians,allinonepackage.Intersectionswith
upto8legs,eachasatwo-wayroad,one-wayapproachorone-wayexitcanbemodelledwithease.
TheHighwayCapacityManual(HCM2000)versionofSIDRAINTERSECTIONoffersoptionsforUSCustomary
andMetricunits.
TrafficSoftwareforRoundabouts
SIDRAINTERSECTIONisthemostpopulartrafficsoftwareforroundabouts(multi-laneandsingle-lane)andotherintersectionsintheUSA,AustraliaandNewZealand,SouthAfrica,Canada,Malaysia,and
elsewherearoundtheworld.Toseewhy,visitourRoundaboutsandSIDRAforRoundaboutswebpages.
OperatingCost,FuelConsumption,PollutantEmissions
SIDRAINTERSECTIONhelpsyouestimatethecost,energyandpollutionimplicationsofyourintersection
designusingauniquevehicledrive-cyclemodel(acceleration,deceleration,idling,cruise).Clickhereforfurtherinformation.
SIDRAINTERSECTIONisnotatrafficsafetydesignorevaluationsoftwarepackage.Werecommendtheuse
ofappropriatesafetyanalysisandaudittoolsforthispurpose.
AdvancedSignalTiming
Advancedsignaltimingoptionssuchasgreensplitpriorityforcoordinatedmovements,equalandunequal
targetdegreesofsaturation,cycletimeoptimisationforfixed-time(pretimed)signalanalysis,andmaximumgreenoptimisationforactuatedsignalanalysis.
Determinesignaltimings(fixed-time/pretimedandactuated)foranyintersectiongeometryallowingforsimpleaswellascomplexphasing
arrangements.
NewFeaturesandEnhancements
Version3.2incorporatesnewInputReport,CustomisedModelandProjectBackupfeatures,enhancements
tomodelling,output,userinterface,helpsystem,andlayoutpicture,resolvesvariousproblemsfoundbyusers,
andincludesanupdatedUserGuide.Newfeaturesandenhancementsarelistedasfollows.
+InputReport
Thislistsallinputparametersthatcanbespecifiedbytheuserineachinputdialog.TheInputReportconsists
ofanumberoftablesandfollowsthestructureoftheinputdialogsintheProjectTree.Thisprovidesaneasy
methodtoreviewinputdatawithouthavingtoopenvariousinputdialogs.Thecontentsofthereportcanbe
printedorexportedtoavarietyoffileformats.
+CustomisedModels
Significantimprovementshavebeenmadetocustomisedmodelswhichalloweditingofdefaultsinputand
modelparameters.CustomisedmodelscreatedbyotheruserscannowbeimporteddirectlyfromProjectsthat
usecustomisedmodels.Handlingofcustomisedmodelshasbeenmademorerobust,andtimetoloadmodels
atstartuphasbeenreduced.
+ProjectBackup
EachtimeaProjectfileisopened,abackupfilewillbecreatedautomatically.Thiscanbeusedtorestorea
Projectfilewhichhasbeenlostorcorruptedduetoaccidentaldeletionorsystemproblems.
+Output
CriticalGapDistancehasbeenaddedtoOutputTableD.6.
When"ApplyPhaseTransition"isspecifiedforamovement,thiswillnowbeshowninOutputTableS.1.The
dotindicatingthisparameterisnowmoreclearlyshowninredinPhasingSummaryoutput(alsointhePhasing
inputdialog).
OpposedTurncoloursandlegendhavebeenchangedtomakethemmuchclearerinPhasingSummaryoutput.
+UserInterface
AfacilitytomoveSitesupanddownwithintheProjectTreeviatheright-clickmenuhasbeenintroduced.
DrawingofsomesliplanecasesintheApproaches&Lanesdialoghasbeenimproved.
OperationofApplybuttonindialogshasbeenimproved.
ExplanationabouttheFHWAModelfeatureshasbeenaddedtotheRoundaboutdialog.
+HelpSystem
AlinktotheSIDRASOLUTIONSwebsitehasbeenaddedtotheHelpmenu.
Helplinkshavebeenaddedtoseveralmessageboxes.
HelptopicsfortheFHWAModelhavebeenbetteridentifiedasspecifictothismodel.
+LayoutPicture
Layoutdrawinghasbeenimprovedformulti-laneT-shapedroundabouts.
Drawingofsomesliplanecaseshasbeenimproved.
Layoutdrawingisnowbetterscaledtothepagewhenprinted,ensuringthatlargegeometrydrawingsshould
alwaysfitontheprintedpage.
+Modelling
Lanewidthupperlimitforapproachandexitlaneshasbeenincreasedto8metres(26feetifUSUnitsareused)
forallintersectiontypes.Previousmodellingconstraintsonapplicationoflanewidth(5metresatsignals,6
metresatroundabouts)stillapply.
Someinternalpedestriantimingparametersarerecalculatediftheuserspecifiesapedestrianminimumtime
ratherthanusingtheprogram-calculatedminimum.Thisallowstheprogramtoacceptinputofagreaterrangeofpedestrianminimumtimes
withouterrors.
Messagesforphasing-relatederrorsencounteredduringprocessinghavebeenimproved.
Capacitycalculationsforcontinuousandprioritymovementsatroundaboutsandsigncontrolledintersections
havebeenmodifiedtouseaconsistentadjustmentmethodforheavyvehiclesandturningvehicles.
"From-To"phasecalculationshavebeenenhancedtocoversomeunusualphasingcases.
MorecomprehensiveerrorchecksrelatedtoAll-WayStopControlhavebeenintroduced.Approacheswithmorethanthreelaneswillnotbeprocessed,andan
attempttocreateanAll-WayStopControlledintersectionbychangingallapproachesataTwo-WayStopControlledintersectiontostopcontrolwillgiveanerror.
+ImportingofDATFilesCreatedByOlderSIDRAVersions
Improvementshavebeenmadetoallowimportingofolderversiondatafileswithunusualfeaturesthatcould
notpreviouslybeimported.
Previously,olderversiondatafilesthatusedthe"ConstantSaturationFlow"facility(removedinVersion3.0)
couldnotbeprocessed.AnyConstantSaturationFlowspecificationwillnowbeignoredintheimportprocess.
