Post on 19-Jan-2015
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UNT Earth Day SummitUNT Earth Day SummitApril 22, 2009April 22, 2009
Sustainable Transportation Sustainable Transportation IndicatorsIndicators
UNT Earth Day SummitUNT Earth Day SummitApril 22, 2009April 22, 2009
Sustainable Transportation Sustainable Transportation IndicatorsIndicators
ByByJoe Zietsman, Ph.D., P.E.Joe Zietsman, Ph.D., P.E.
Texas Transportation InstituteTexas Transportation Institute
zietsman@tamu.eduzietsman@tamu.edu
TimelineTimelineTimelineTimeline
PastPast
PresentPresent
FutureFuture
Indication of Indication of ClarityClarity
Where Have We Been?Where Have We Been?Where Have We Been?Where Have We Been?
Where Are We Now?Where Are We Now?Where Are We Now?Where Are We Now?
Luxury vehiclesLuxury vehicles
High speed railHigh speed rail
Alternative fuel vehiclesAlternative fuel vehicles
Where Are We Going?Where Are We Going?Where Are We Going?Where Are We Going?
TrendsTrends
Personal devicesPersonal devices CocooningCocooning Self driving carsSelf driving cars Rocket planesRocket planes Floating citiesFloating cities LongevityLongevity
Highway 59 On a Good DayHighway 59 On a Good DayHighway 59 On a Good DayHighway 59 On a Good Day
Highway 59 On a Bad DayHighway 59 On a Bad DayHighway 59 On a Bad DayHighway 59 On a Bad Day
Defining Sustainable Defining Sustainable TransportationTransportation
Defining Sustainable Defining Sustainable TransportationTransportation
““Sustainable development is development that Sustainable development is development that meets the needs of the present without meets the needs of the present without compromising the ability of future generations to compromising the ability of future generations to meet their own needs” meet their own needs”
Economic, Social, EnvironmentEconomic, Social, Environment
Sustainable Transportation - Expression of Sustainable Transportation - Expression of sustainable development within the sustainable development within the transportation sectortransportation sector
Sustainability DimensionsSustainability DimensionsSustainability DimensionsSustainability Dimensions
Sample DefinitionSample DefinitionSample DefinitionSample Definition
Used by TxDOTUsed by TxDOT
““Provision of safe, effective, and efficient access Provision of safe, effective, and efficient access and mobility into the future while considering and mobility into the future while considering economic, social, and environmental needs”economic, social, and environmental needs”
Key Thrusts for Sustainable Key Thrusts for Sustainable TransportationTransportation
Key Thrusts for Sustainable Key Thrusts for Sustainable TransportationTransportation
UnderstandQuantify
Apply
Sustainable Transportation
Performance IndicatorsPerformance IndicatorsPerformance IndicatorsPerformance Indicators
AcceptableAcceptable AccurateAccurate AffordableAffordable MeasurableMeasurable RelevantRelevant
SensitiveSensitive Show trendsShow trends TimelyTimely UnderstandableUnderstandable BenchmarkBenchmark
Simplify, Quantify, and Communicate Simplify, Quantify, and Communicate
Sustainability and TxDOT Sustainability and TxDOT GoalsGoals
Sustainability and TxDOT Sustainability and TxDOT GoalsGoals
DimensionDimension GoalsGoals
SocialSocial Reduce CongestionReduce Congestion
Enhance SafetyEnhance Safety
EconomicEconomic Expand Economic OpportunityExpand Economic Opportunity
Preserve Value of Transportation AssetsPreserve Value of Transportation Assets
EnvironmentalEnvironmental Improve Air QualityImprove Air Quality
Sustainability Objectives and Measures Sustainability Objectives and Measures Sustainability Objectives and Measures Sustainability Objectives and Measures
TxDOT GoalTxDOT Goal Sustainability-Related Objective Sustainability-Related Objective Performance Measure Performance Measure
Reduce congestionReduce congestionImprove mobility on highwaysImprove mobility on highways Travel time indexTravel time index
Improve reliability of highway travel Improve reliability of highway travel Buffer index Buffer index
Enhance safety Enhance safety
Reduce crash rates and crash riskReduce crash rates and crash riskAnnual severe crashes per Annual severe crashes per
milemile
Improve traffic incident detection and Improve traffic incident detection and
responseresponse
Percentage lane-miles under Percentage lane-miles under
traffic traffic
monitoring/surveillance monitoring/surveillance
Expand economic Expand economic
opportunityopportunity
Optimize land-use mix for development Optimize land-use mix for development
potential potential Land-use balance Land-use balance
Improve road-based freight movementImprove road-based freight movement Truck throughput efficiencyTruck throughput efficiency
Sustainability Objectives and Measures Sustainability Objectives and Measures Sustainability Objectives and Measures Sustainability Objectives and Measures
TxDOT Goal TxDOT Goal Sustainability-Related Objective Sustainability-Related Objective Performance Measure Performance Measure
Preserve the value of Preserve the value of
transportation assets transportation assets
Reduce cost and impact of highway Reduce cost and impact of highway
capacity expansioncapacity expansionCapacity addition within Capacity addition within
available right of wayavailable right of way
Leverage non-traditional funding Leverage non-traditional funding
sources for highwayssources for highwaysCost recovery from Cost recovery from
alternative sourcesalternative sources
Increase use of alternatives to single-Increase use of alternatives to single-
occupant automobile traveloccupant automobile travelProportion of non-single-Proportion of non-single-
occupant traveloccupant travel
Improve air quality Improve air quality
Reduce adverse human health impacts Reduce adverse human health impacts
and comply with ambient air quality and comply with ambient air quality
standards standards Air Quality Index Air Quality Index
Reduce greenhouse gas emissionsReduce greenhouse gas emissions Daily CODaily CO22 emissions emissions
Excel-Based CalculatorExcel-Based CalculatorExcel-Based CalculatorExcel-Based Calculator
Example Application: US -281Example Application: US -281Example Application: US -281Example Application: US -281 From I-410 (near From I-410 (near
downtown) to downtown) to Bexar/Comal County Bexar/Comal County lineline
Base Case: Conditions Base Case: Conditions as of 2005as of 2005
Future Case: Future Case: Projected for 2025Projected for 2025
Results: GraphsResults: GraphsResults: GraphsResults: Graphs
Results: GraphsResults: GraphsResults: GraphsResults: Graphs
ConclusionsConclusionsConclusionsConclusions
Sustainability is now more than a “Buzz Sustainability is now more than a “Buzz Word”Word”
Needs to be understood, quantified, and Needs to be understood, quantified, and appliedapplied
Methodology was developed for TxDOTMethodology was developed for TxDOT Easily adapted to other areas and applicationsEasily adapted to other areas and applications