AASHTO GTDP:2009
AASHTO GTDP:2009 Guidelines For Traffic Data Programs Deals with improving the quality of the traffic information that supports decisions at all levels of the transportation profession.
Table of Contents
Chapter1-Introduction1.1Introduction
1.2Principles,Themes,andEmergingIssuesfor
Guidelines
1.3SummaryofTrafficDataPrograms
1.4StructureoftheDocument
Chapter2-TrafficDataCollectionNeeds
2.1Introduction
2.2TrafficCountTypesandNeeds
2.3EstimatingTrafficDataCollectionNeeds
2.4ReducingTrafficDataCollectionNeeds
2.5EstimatingStaffandResourceRequirementsfor
TrafficDataCollection
2.6Conclusion
2.7References
Chapter3-TrafficMonitoringEquipment
3.1IntroductiontoDataCollectionEquipment
3.2EquipmentTechnologies
3.3DataCollectionEquipment
3.4EquipmentSelection
3.5EquipmentInstallationandMaintenance
3.6TrafficCountingonCongestedRoadways
3.7TheDataImplicationsoftheGrowingEmphasison
RoadwayOperations
3.8Conclusion
3.9References
Chapter4-QualityAssuranceforTrafficData
4.1Introduction
4.2IntegratingQualityAssuranceintoTrafficMonitoring
Programs
4.3WhatIsDataQuality?
4.4AssessingDataQuality
4.5ValidationCriteriaforVehicleCount,Classification,and
WeightData
4.6SeverityLevelsforValidationCriteria
4.7OtherQualityControlConsiderations
4.8DealingwithMissingData
4.9Quality-LevelDesignations
4.10ExampleofQualityAssessmentforWIMData
4.11ReferencesandResources
Chapter5-SummarizingTrafficData
5.1SummarizingDatafromContinuousCounters
5.2AdjustmentFactors
5.3SummarizingShort-TermCounts
5.4EstimatingPrecisionofTrafficStatistics
5.5EstimatingSection-SpecificHPMSTrafficStatistics
5.6System-LevelSummaryData
5.7TrafficStatisticsfortheMechanistic-Empirical
PavementDesignGuide(MEPDG)
5.8References
Chapter6-ReportingandManagingTrafficData
6.1Introduction
6.2Basis
6.3DatabaseConsiderations
6.4DisseminatingTrafficInformation
6.5DatabaseProcedures
6.6TrafficDataReports
6.7DataRetention
6.8References
Chapter7-IntegratingOperationsData
7.1Introduction
7.2CurrentPractice
7.3StepsforSuccess
7.4ChapterSummary
7.5References
AppendixA
ExamplesofDataValidationStandards
AppendixB
CaseStudiesoftheIntegrationofArchivedOperationsData
AppendixC
LiteratureReview
AppendixD
Abbreviations
Definitions
LISTOFTABLES
LISTOFFIGURES