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Transcript of Michael A. Knodler Jr., Ph.D. Dept.of Civil & Environ.Engineering October 16, 2010 What is...
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Michael A. Knodler Jr., Ph.D.Michael A. Knodler Jr., Ph.D.
Dept.of Civil & Environ.EngineeringDept.of Civil & Environ.Engineering
October 16, 2010October 16, 2010
What is Transportation Engineering?What is Transportation Engineering?
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Scenario #1Scenario #1
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Scenario #2Scenario #2
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Scenario #3Scenario #3
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What is Engineering? What is Engineering?
en·gi·neer·ing (n.) -The application of scientific and mathematical principles to practical ends such as the design,
manufacture, and operation of efficient and economical structures, machines, processes, and systems.
• Chemical EngineeringChemical Engineering
• Mechanical & Industrial EngineeringMechanical & Industrial Engineering
• Electrical & Computer EngineeringElectrical & Computer Engineering
• Civil & Environmental EngineeringCivil & Environmental Engineering
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What is Transportation? What is Transportation?
The safe and efficient movement of people and goods!
“the branch of engineering which applies technology, science, and human factors to the planning, design,
operations and management of roads, streets, bikeways, highways, their networks, terminals, and abutting lands” The objective is to provide for the safe, rapid, comfortable, efficient, convenient, and environmentally compatible movement of people,
goods, and services.
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Across all ModesAcross all Modes
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Across all ModesAcross all Modes
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Across all ModesAcross all Modes
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Transportation Quiz Transportation Quiz
For the famous Chicopee curve
along I-91- Develop a
procedure for identifying where to place the curve
warning sign
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Emphasis AreasEmphasis Areas
Operations
Planning Design
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Transportation Fun FactsTransportation Fun Facts
• 16% of U.S. GDP16% of U.S. GDP
• Approx $1.5 trillion on expendituresApprox $1.5 trillion on expenditures
• 70% of petroleum in U.S.70% of petroleum in U.S.
• U.S. citizens travel on averageU.S. citizens travel on average– 1hour per day1hour per day– 12,000 miles per year12,000 miles per year
• 80% of eligible…..have licenses80% of eligible…..have licenses
• 11% of the U.S. workforce11% of the U.S. workforce
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The Not So Fun FactsThe Not So Fun Facts• Bitten by venomous snake: 1 in 37,250 (9,000 venomous Bitten by venomous snake: 1 in 37,250 (9,000 venomous
bites and 12 deaths per year)bites and 12 deaths per year)• Struck by lightening: 1 in 240,000 (100 deaths)Struck by lightening: 1 in 240,000 (100 deaths)• Dying in a tornado: 1 in 5 million (60 deaths)Dying in a tornado: 1 in 5 million (60 deaths)• Dying from bee, hornet or wasp sting: 1 in 5.33 million Dying from bee, hornet or wasp sting: 1 in 5.33 million • Being attacked by a shark: 1 in 11. 5 million Being attacked by a shark: 1 in 11. 5 million
– 23 people were involved in shark attacks in 2000 23 people were involved in shark attacks in 2000 (highest number on record)(highest number on record)
• Being attacked by a bear: 1 in 36 million Being attacked by a bear: 1 in 36 million • Being Killed in a Car Crash (Lifetime): 1 in 77Being Killed in a Car Crash (Lifetime): 1 in 77
Leading Cause of Death from 5 to 33
70 out of 100 Children Born Today will be Injured in a Crash
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U.S. Highway SystemU.S. Highway System
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Human FactorsHuman Factors
Driver Abilities & Limitations
Perception/Reaction
Cognitive Processing
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16Source: www.metrokc.gov
16
Design ConsiderationsDesign Considerations
Layout of Roadway Layout of Roadway ElementsElements
• AlignmentAlignment
• GradeGrade
• Cross-SectionCross-Section
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Amity Street at University Drive
Performance Measures
•Delay
•Level of Service
•# of Stops
•Queue Length
•Emissions
•Safety
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Planning StudiesPlanning Studies
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Planning StudiesPlanning Studies
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Travel Demand ForecastingTravel Demand Forecasting
• Trip Generation – The decision to travelTrip Generation – The decision to travel
• Trip Distribution – Choice of destinationTrip Distribution – Choice of destination
• Mode Choice – Which mode to takeMode Choice – Which mode to take
• Network Assignment – Route/path choiceNetwork Assignment – Route/path choice
What factors influence this?
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Network AnalysisNetwork Analysis
UMass
Points North
Points West
Points South The Notch
Route 9
Route 116
I-91
I-91
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123
3
45 4
4
5
5
Five Highest Impact Links for Evacuation Activity Chaining Scenarios
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EvacuationsEvacuations
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EvacuationsEvacuations
Predictions•1.3 million evacuees
•0.5 million vehicles
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Simulation ModelsSimulation Models
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Western MA Roundabout?Western MA Roundabout?
Conceptual Design
Created By NYSDOT
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Western MA Roundabout? Western MA Roundabout?
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Roundabouts vs. RotariesRoundabouts vs. Rotaries
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Retrofitting RotariesRetrofitting Rotaries
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Accommodating Left TurnsAccommodating Left Turns
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Traffic Control DevicesTraffic Control Devices
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Rational Speed DemonstrationRational Speed Demonstration
• EngineeringEngineering– Determination of 85Determination of 85thth %tile Speed %tile Speed– Roadway InventoryRoadway Inventory
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Transportation SafetyTransportation Safety
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Crash Data AnalysisCrash Data AnalysisCottage St. & 78-81 South Main St.
Cross St./Walcott St. & 95-100 South Main St.
Circular Ave./Curve St. & 115-126 South Main St.
132-139 South Main St.
150-153 South Main St.
Rockland St./Bear Hill Rd. & 172-184 South Main St.
206 South Main St.
West St. & 250-266 South Main St.
14%
2%
2%
26%
7%
23%
14%
12%
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2003 Nationwide Belt Usage2003 Nationwide Belt Usage
0%
10%
20%
30%
40%
50%
60%
70%
80%
90%
100%
2003
Saf
ety
Bel
t U
se R
ates
Primary Secondary
Source: Glassbrenner, D. Safety Belt Use in 2003 - Use Rates in the States and Territories , NHTSA Technical Report March 2004
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Occupant Occupant ConfigurationConfiguration
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Education Level Education Level
% of a Community’s Population with less than Some College
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Education Level Education Level
71 72
54
62 64
72 7366
70 69
8177
544956
0
10
20
30
40
50
60
70
80
90
100
Group I Group II Group III Group IV Group V
Education Level
Per
cent
Bel
ted
Teen Adult Elder Adult
Belt Use with Education Level
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ITS TechnologiesITS Technologies
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Travel Time SystemTravel Time System
CAMERA 1
CAMERA 2
3:15
3:45
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Travel Time ReportingTravel Time Reporting
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Web Camera SystemWeb Camera System
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WebWeb
CameraCamera
SystemSystem
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HPL Driving SimulatorHPL Driving Simulator
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Additional Areas of EmphasisAdditional Areas of Emphasis
• Transportation PolicyTransportation Policy
• LogisticsLogistics
• AdministrationAdministration
• EconomicsEconomics
• Public HealthPublic Health
• Psychology / SociologyPsychology / Sociology
• Transportation StatisticsTransportation Statistics
• And more!And more!
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What Transportation is not…HopefullyWhat Transportation is not…Hopefully
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QuestionsQuestions
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Exercise #1 – Traffic VolumesExercise #1 – Traffic Volumes
Building Block Building Block of Traffic of Traffic
EngineeringEngineering
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Exercise #1 – Traffic VolumesExercise #1 – Traffic Volumes
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Exercise #2 – SpeedsExercise #2 – Speeds
• Another Basic Building BlockAnother Basic Building Block→ Speed = Distance / TimeSpeed = Distance / Time
• Applications of Concepts for ExerciseApplications of Concepts for Exercise→ Units (e.g., mph, ft/sec)Units (e.g., mph, ft/sec)
→ ConversionsConversions→ ScalingScaling
• Real World ExamplesReal World Examples→ Pedestrian Crossing TimePedestrian Crossing Time
→ Compliance with Speed LimitCompliance with Speed Limit
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Exercise #3 – Multimodal OlympicsExercise #3 – Multimodal Olympics
Trains, Planes & ShipsTrains, Planes & Ships
• Mode utility and purposeMode utility and purpose
• Re- engineeringRe- engineering
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Exercise #4 – Crash Test DummyExercise #4 – Crash Test Dummy
Point ValuesPoint Values(10) Cotton balls – 5 max(10) Cotton balls – 5 max
(10) Toothpick – 5 max(10) Toothpick – 5 max
(25) Cardboard Sq. – 6 max(25) Cardboard Sq. – 6 max
(50) Paper sheets – 3 max(50) Paper sheets – 3 max
(50) per ft of Tape – 3 max(50) per ft of Tape – 3 max
* Zip Lock Bag – is key!* Zip Lock Bag – is key!
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Exercise #5 – Measuring Traffic DelaysExercise #5 – Measuring Traffic Delays
0
10
20
30
40
50
60
70
80
0 20 40 60 80 100
Cycle Length (sec)
Inte
rse
cti
on
De
lay
(s
ec
ve
h)
Major Performance Measure used to Drive Major Performance Measure used to Drive many Traffic Engineering Solutionsmany Traffic Engineering Solutions
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Multiple Exercises (92 to be exact) Multiple Exercises (92 to be exact)
www.ite.orgwww.ite.org•ITE Councils ITE Councils
(left side)(left side)
•Transportation Education CouncilTransportation Education Council
(right side)(right side)
•Recruitment Toolbox Recruitment Toolbox
(right side)(right side)