Is Transportation Sustainable?. Objectives By the end of this unit, students will be able to:...
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![Page 1: Is Transportation Sustainable?. Objectives By the end of this unit, students will be able to: 1.Examine and prioritize transportation project impacts.](https://reader036.fdocuments.us/reader036/viewer/2022062422/56649ef55503460f94c0889e/html5/thumbnails/1.jpg)
Is Transportation Sustainable?
![Page 2: Is Transportation Sustainable?. Objectives By the end of this unit, students will be able to: 1.Examine and prioritize transportation project impacts.](https://reader036.fdocuments.us/reader036/viewer/2022062422/56649ef55503460f94c0889e/html5/thumbnails/2.jpg)
Objectives
By the end of this unit, students will be able to:
1. Examine and prioritize transportation project impacts on sustainability
2. Recognize transportation project solutions’ impacts on sustainability
3. Identify mitigation strategies for transportation solutions to reduce negative impacts on sustainability
4. Identify transportation sustainability metrics
5. Explain the aspects of transportation projects that may affect sustainability
![Page 3: Is Transportation Sustainable?. Objectives By the end of this unit, students will be able to: 1.Examine and prioritize transportation project impacts.](https://reader036.fdocuments.us/reader036/viewer/2022062422/56649ef55503460f94c0889e/html5/thumbnails/3.jpg)
Sustainability in TransportationAir Quality
Alternative Modes
Congestion
Construction Materials
![Page 4: Is Transportation Sustainable?. Objectives By the end of this unit, students will be able to: 1.Examine and prioritize transportation project impacts.](https://reader036.fdocuments.us/reader036/viewer/2022062422/56649ef55503460f94c0889e/html5/thumbnails/4.jpg)
Transportation Sustainability Measures Vary from project to project
How to measure congestion?
What about air quality related to transportation?
Can alternative travel modes be measured?
Other considerations: Safety Fuel consumption O&M or life cycle sustainability
Land Use
Water Quality and Volume
![Page 5: Is Transportation Sustainable?. Objectives By the end of this unit, students will be able to: 1.Examine and prioritize transportation project impacts.](https://reader036.fdocuments.us/reader036/viewer/2022062422/56649ef55503460f94c0889e/html5/thumbnails/5.jpg)
Actual Cost of TransportationFuel and vehicle
Delay/congestion
![Page 6: Is Transportation Sustainable?. Objectives By the end of this unit, students will be able to: 1.Examine and prioritize transportation project impacts.](https://reader036.fdocuments.us/reader036/viewer/2022062422/56649ef55503460f94c0889e/html5/thumbnails/6.jpg)
Traffic Signal RetimingWhat are goals?
Can we measure the goals?
Air quality
Safety
Social
Infrastructure maintenance
![Page 7: Is Transportation Sustainable?. Objectives By the end of this unit, students will be able to: 1.Examine and prioritize transportation project impacts.](https://reader036.fdocuments.us/reader036/viewer/2022062422/56649ef55503460f94c0889e/html5/thumbnails/7.jpg)
Case Study: What to do at an intersection?Traffic Signal
Two-way Stop
Four-way Stop
Traffic Circle
Roundabout
![Page 8: Is Transportation Sustainable?. Objectives By the end of this unit, students will be able to: 1.Examine and prioritize transportation project impacts.](https://reader036.fdocuments.us/reader036/viewer/2022062422/56649ef55503460f94c0889e/html5/thumbnails/8.jpg)
What Metrics to Consider?Technical
Sustainability Economic Environmental Social
Constructability
Political Will
Others?
![Page 9: Is Transportation Sustainable?. Objectives By the end of this unit, students will be able to: 1.Examine and prioritize transportation project impacts.](https://reader036.fdocuments.us/reader036/viewer/2022062422/56649ef55503460f94c0889e/html5/thumbnails/9.jpg)
Traffic Signal CharacteristicsOperating and Maintenance cost
Controller Communications Signals Retiming
High speed crashes may occur
Can handle large volumes
Other information needed?
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StopsLow O&M costs, but signs must be periodically
replaced
What are the functional classifications of the intersecting roadways? May dictate, 2 vs. 4 – way stop
Speed of crashes varies based on the functional classifications; however, 4-way stop crashes are typically low speed
Other information to collect?
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Traffic CircleCharacteristicsLow capacity
Minimal, if any O&M
May accent neighborhood
Low speed, often local facilities
Other information?
Reference: http://www.ite.org/traffic/circle.asp
![Page 12: Is Transportation Sustainable?. Objectives By the end of this unit, students will be able to: 1.Examine and prioritize transportation project impacts.](https://reader036.fdocuments.us/reader036/viewer/2022062422/56649ef55503460f94c0889e/html5/thumbnails/12.jpg)
RoundaboutCharacteristicsMinimal O&M cost
Relatively high capacity
Bike/Ped. safety
Lower speed crashes than signalized intersections
Other necessary information?
Reference: http://www.kittelson.com/kai_toolbox/roundabouts/index.htm
![Page 13: Is Transportation Sustainable?. Objectives By the end of this unit, students will be able to: 1.Examine and prioritize transportation project impacts.](https://reader036.fdocuments.us/reader036/viewer/2022062422/56649ef55503460f94c0889e/html5/thumbnails/13.jpg)
Put it All TogetherChoose an alternative analysis methodology
Combine metrics
Evaluate alternatives
Recommend alternative
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Class ActivityWhat are the proposed project’s impacts on
sustainability? Rank order these in terms of importance and
magnitude
What are the appropriate metrics for assessing the project’s impact on sustainability?
Identify possible strategies for reducing the project’s negative impact on sustainability
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Group Projects INSERT LOCAL TRANSPORTATION PROJECTS
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References www.ite.org/traffic/circle.asp
www.kittelson.com/kai_toolbox/roundabouts/index.htm